Radić, Nenad

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  • Radić, Nenad (8)
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Author's Bibliography

Nanocrystalline CeO2-delta as Effective Adsorbent of Azo Dyes

Tomić, Nataša M.; Dohcević-Mitrović, Zorana; Paunović, Novica M.; Mijin, Dušan; Radić, Nenad; Grbić, Boško; Askrabić, Sonja M.; Babić, Biljana M.; Bajuk-Bogdanović, Danica

(Amer Chemical Soc, Washington, 2014)

TY  - JOUR
AU  - Tomić, Nataša M.
AU  - Dohcević-Mitrović, Zorana
AU  - Paunović, Novica M.
AU  - Mijin, Dušan
AU  - Radić, Nenad
AU  - Grbić, Boško
AU  - Askrabić, Sonja M.
AU  - Babić, Biljana M.
AU  - Bajuk-Bogdanović, Danica
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2734
AB  - Ultrafine CeO2-delta nanopowder, prepared by a simple and cost-effective self-propagating room temperature synthesis method (SPRT), showed high adsorption capability for removal of different azo dyes. Batch type of adsorption experiments with fixed initial pH value were conducted for the removal of Reactive Orange 16 (RO16), Methyl Orange (MO), and Mordant Blue 9 (MB9). The equilibrium adsorption data were evaluated using Freundlich and Langmuir isotherm models. The Langmuir model slightly better describes isotherm data for RO16 and MO, whereas the Freundlich model was found to best fit the isotherm data for MB9 over the whole concentration range. The maximum adsorption capacities, determined from isotherm data for MO, MB9, and RO16 were 113, 101, and 91 mg g(1) respectively. The adsorption process follows the pseudo-second-order kinetic model indicating the coexistence of chemisorption and physisorption. The mechanism of azo dye adsorption is also discussed.
PB  - Amer Chemical Soc, Washington
T2  - Langmuir
T1  - Nanocrystalline CeO2-delta as Effective Adsorbent of Azo Dyes
EP  - 11590
IS  - 39
SP  - 11582
VL  - 30
DO  - 10.1021/la502969w
ER  - 
@article{
author = "Tomić, Nataša M. and Dohcević-Mitrović, Zorana and Paunović, Novica M. and Mijin, Dušan and Radić, Nenad and Grbić, Boško and Askrabić, Sonja M. and Babić, Biljana M. and Bajuk-Bogdanović, Danica",
year = "2014",
abstract = "Ultrafine CeO2-delta nanopowder, prepared by a simple and cost-effective self-propagating room temperature synthesis method (SPRT), showed high adsorption capability for removal of different azo dyes. Batch type of adsorption experiments with fixed initial pH value were conducted for the removal of Reactive Orange 16 (RO16), Methyl Orange (MO), and Mordant Blue 9 (MB9). The equilibrium adsorption data were evaluated using Freundlich and Langmuir isotherm models. The Langmuir model slightly better describes isotherm data for RO16 and MO, whereas the Freundlich model was found to best fit the isotherm data for MB9 over the whole concentration range. The maximum adsorption capacities, determined from isotherm data for MO, MB9, and RO16 were 113, 101, and 91 mg g(1) respectively. The adsorption process follows the pseudo-second-order kinetic model indicating the coexistence of chemisorption and physisorption. The mechanism of azo dye adsorption is also discussed.",
publisher = "Amer Chemical Soc, Washington",
journal = "Langmuir",
title = "Nanocrystalline CeO2-delta as Effective Adsorbent of Azo Dyes",
pages = "11590-11582",
number = "39",
volume = "30",
doi = "10.1021/la502969w"
}
Tomić, N. M., Dohcević-Mitrović, Z., Paunović, N. M., Mijin, D., Radić, N., Grbić, B., Askrabić, S. M., Babić, B. M.,& Bajuk-Bogdanović, D.. (2014). Nanocrystalline CeO2-delta as Effective Adsorbent of Azo Dyes. in Langmuir
Amer Chemical Soc, Washington., 30(39), 11582-11590.
https://doi.org/10.1021/la502969w
Tomić NM, Dohcević-Mitrović Z, Paunović NM, Mijin D, Radić N, Grbić B, Askrabić SM, Babić BM, Bajuk-Bogdanović D. Nanocrystalline CeO2-delta as Effective Adsorbent of Azo Dyes. in Langmuir. 2014;30(39):11582-11590.
doi:10.1021/la502969w .
Tomić, Nataša M., Dohcević-Mitrović, Zorana, Paunović, Novica M., Mijin, Dušan, Radić, Nenad, Grbić, Boško, Askrabić, Sonja M., Babić, Biljana M., Bajuk-Bogdanović, Danica, "Nanocrystalline CeO2-delta as Effective Adsorbent of Azo Dyes" in Langmuir, 30, no. 39 (2014):11582-11590,
https://doi.org/10.1021/la502969w . .
49
37
49

Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method

Dostanić, Jasmina; Grbić, Boško; Radić, Nenad; Stefanov, Plamen; Šaponjić, Zoran; Buha, Jelena; Mijin, Dušan

(Elsevier Science Sa, Lausanne, 2012)

TY  - JOUR
AU  - Dostanić, Jasmina
AU  - Grbić, Boško
AU  - Radić, Nenad
AU  - Stefanov, Plamen
AU  - Šaponjić, Zoran
AU  - Buha, Jelena
AU  - Mijin, Dušan
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2240
AB  - In this study, the feasibility of preparing porous TiO2 films on a stainless steel substrate from a hydrothermally prepared colloidal TiO2 solution by the spray pyrolysis technique is presented. The prepared samples were annealed at different temperatures and characterized by the XPS, XRD and SEM techniques, porosimetry and specific surface area measurements. The photocatalytic activities of the resulting films were evaluated by measuring the degradation of an azo pyridone dye, used as model pollutant, under simulated sunlight conditions. The relationships between the structural and morphological characteristics of the TiO2 films and their photoactivity were observed. It was found that the photoactivity was markedly dependent on the annealing temperature. On increasing the calcination temperature from 500 degrees C to 700 degrees C, the crystallite size and the rutile content increased, whereas the specific surface area and the rate of photodegradation decreased. Calcination at 700 degrees C resulted in a completely loss of photoactivity, due to the partial transformation of anatase to rutile phase, the increased crystallite size and decreased specific surface area. Specific activity (per unit of mass and per unit of surface area) was lowered within thicker films, pointing out significance of transport phenomena through porous films (the transport of dye and the transmittance of light as immaterial reagent). Based on the obtained results, the spray pyrolysis method appears to be a good choice for the preparation of photocatalytically active TiO2 films for the removal of dye pollutants.
PB  - Elsevier Science Sa, Lausanne
T2  - Chemical Engineering Journal
T1  - Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method
EP  - 65
SP  - 57
VL  - 180
DO  - 10.1016/j.cej.2011.10.100
ER  - 
@article{
author = "Dostanić, Jasmina and Grbić, Boško and Radić, Nenad and Stefanov, Plamen and Šaponjić, Zoran and Buha, Jelena and Mijin, Dušan",
year = "2012",
abstract = "In this study, the feasibility of preparing porous TiO2 films on a stainless steel substrate from a hydrothermally prepared colloidal TiO2 solution by the spray pyrolysis technique is presented. The prepared samples were annealed at different temperatures and characterized by the XPS, XRD and SEM techniques, porosimetry and specific surface area measurements. The photocatalytic activities of the resulting films were evaluated by measuring the degradation of an azo pyridone dye, used as model pollutant, under simulated sunlight conditions. The relationships between the structural and morphological characteristics of the TiO2 films and their photoactivity were observed. It was found that the photoactivity was markedly dependent on the annealing temperature. On increasing the calcination temperature from 500 degrees C to 700 degrees C, the crystallite size and the rutile content increased, whereas the specific surface area and the rate of photodegradation decreased. Calcination at 700 degrees C resulted in a completely loss of photoactivity, due to the partial transformation of anatase to rutile phase, the increased crystallite size and decreased specific surface area. Specific activity (per unit of mass and per unit of surface area) was lowered within thicker films, pointing out significance of transport phenomena through porous films (the transport of dye and the transmittance of light as immaterial reagent). Based on the obtained results, the spray pyrolysis method appears to be a good choice for the preparation of photocatalytically active TiO2 films for the removal of dye pollutants.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Chemical Engineering Journal",
title = "Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method",
pages = "65-57",
volume = "180",
doi = "10.1016/j.cej.2011.10.100"
}
Dostanić, J., Grbić, B., Radić, N., Stefanov, P., Šaponjić, Z., Buha, J.,& Mijin, D.. (2012). Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method. in Chemical Engineering Journal
Elsevier Science Sa, Lausanne., 180, 57-65.
https://doi.org/10.1016/j.cej.2011.10.100
Dostanić J, Grbić B, Radić N, Stefanov P, Šaponjić Z, Buha J, Mijin D. Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method. in Chemical Engineering Journal. 2012;180:57-65.
doi:10.1016/j.cej.2011.10.100 .
Dostanić, Jasmina, Grbić, Boško, Radić, Nenad, Stefanov, Plamen, Šaponjić, Zoran, Buha, Jelena, Mijin, Dušan, "Photodegradation of an azo pyridone dye using TiO2 films prepared by the spray pyrolysis method" in Chemical Engineering Journal, 180 (2012):57-65,
https://doi.org/10.1016/j.cej.2011.10.100 . .
21
22
25

Removal of ethylene oxide from waste gases by absorption

Arsenijević, Zorana; Grbavčić, Željko; Grbić, Boško; Radić, Nenad; Garić-Grulović, Radmila; Đuriš, Mihal

(Association of Chemical Engineers of Serbia, 2011)

TY  - JOUR
AU  - Arsenijević, Zorana
AU  - Grbavčić, Željko
AU  - Grbić, Boško
AU  - Radić, Nenad
AU  - Garić-Grulović, Radmila
AU  - Đuriš, Mihal
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5654
AB  - Ethylene oxide (EtO) is an organic compound, which is used as a starting material in the production of polymers and as sterilizing agent for thermolabile materials. Although ethylene oxide is not common as an organic pollutant, its removal from numerous emission sources (e.g., ethylene oxide production plants or food and pharmaceutical sterilizing units) is of crucial importance because of its mutagenic, teratogenic and cancerogenic effects on human health. The objective of this paper is the experimental investigation of ethylene oxide (EtO) absorption in diluted aqueous solution of sulfuric acid in order to evaluate the applicability of this procedure as well as to obtain project parameters for industrial plant realizetion. It was found that absorption is suitable as the fist step in the purification treatment of high EtO concentrations in the emission gases. According to the literature data, the basic parameter that defines the scrubber efficiency is the contact time, i.e. the ratio of packing height in the scrubber to the velocity of the gas mixture. To investigate the characteristics of wet treatment in a broad range of contact time, parts of the experimental studies were conducted in a system with two and with three scrubbers in series. The obtained experimental results show that the high degree of EtO removal can be achieved (>98%) when the contact time is sufficiently long (about 25s). The process is effective until the concentration of formed glycol in the solution reaches a value of about 20%. The process is safe and there is no danger of ignition and explosion of air and EtO mixture, although at the entrance to the scrubber EtO concentrations are significantly above the lower explosive limit.
AB  - Predmet ovog rada je istraživanje mogućnosti uklanjanja etilen-oksida (EtO) iz otpadnih gasova apsorpcijom u razblaženim vodenim rastvorima sumporne kiseline sa ciljem da se ocene mogućnosti primene ove tehnologije za projektovanje industrijskog sistema. Apsorpcija je naročito pogodan postupak kao prvi stepen prečišćavanja u slučajevima kada je emisiona koncentracija EtO visoka. Eksperimentalno je ispitan uticaj širokog opsega vremena kontakta na efikasnost uklanjanja EtO. Ulazne koncentracije EtO su varirane od 4 do 40 vol.%, a vremena kontakta od 4 do 40 s. Apsorcija je izvođena u rastvoru sumporne kiseline (H2SO4) pri čemu dolazi do hidrolize EtO u etilen-glikol. Efikasnost apsorpcije EtO opada sa povećanjem koncentracije etilen-glikola u apsorpcionom rastvoru. Rezultati eksperimentalnih ispitivanja su pokazali da se može postići visok stepen efikasnosti uklanjanja EtO (> 98%) pod uslovom da je vreme kontakta dovoljno dugo (oko 25s).
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Removal of ethylene oxide from waste gases by absorption
T1  - Uklanjanje etilen-oksida iz otpadnih gasova postupkom apsorpcije
EP  - 395
IS  - 4
SP  - 389
VL  - 65
DO  - 10.2298/HEMIND110329026A
ER  - 
@article{
author = "Arsenijević, Zorana and Grbavčić, Željko and Grbić, Boško and Radić, Nenad and Garić-Grulović, Radmila and Đuriš, Mihal",
year = "2011",
abstract = "Ethylene oxide (EtO) is an organic compound, which is used as a starting material in the production of polymers and as sterilizing agent for thermolabile materials. Although ethylene oxide is not common as an organic pollutant, its removal from numerous emission sources (e.g., ethylene oxide production plants or food and pharmaceutical sterilizing units) is of crucial importance because of its mutagenic, teratogenic and cancerogenic effects on human health. The objective of this paper is the experimental investigation of ethylene oxide (EtO) absorption in diluted aqueous solution of sulfuric acid in order to evaluate the applicability of this procedure as well as to obtain project parameters for industrial plant realizetion. It was found that absorption is suitable as the fist step in the purification treatment of high EtO concentrations in the emission gases. According to the literature data, the basic parameter that defines the scrubber efficiency is the contact time, i.e. the ratio of packing height in the scrubber to the velocity of the gas mixture. To investigate the characteristics of wet treatment in a broad range of contact time, parts of the experimental studies were conducted in a system with two and with three scrubbers in series. The obtained experimental results show that the high degree of EtO removal can be achieved (>98%) when the contact time is sufficiently long (about 25s). The process is effective until the concentration of formed glycol in the solution reaches a value of about 20%. The process is safe and there is no danger of ignition and explosion of air and EtO mixture, although at the entrance to the scrubber EtO concentrations are significantly above the lower explosive limit., Predmet ovog rada je istraživanje mogućnosti uklanjanja etilen-oksida (EtO) iz otpadnih gasova apsorpcijom u razblaženim vodenim rastvorima sumporne kiseline sa ciljem da se ocene mogućnosti primene ove tehnologije za projektovanje industrijskog sistema. Apsorpcija je naročito pogodan postupak kao prvi stepen prečišćavanja u slučajevima kada je emisiona koncentracija EtO visoka. Eksperimentalno je ispitan uticaj širokog opsega vremena kontakta na efikasnost uklanjanja EtO. Ulazne koncentracije EtO su varirane od 4 do 40 vol.%, a vremena kontakta od 4 do 40 s. Apsorcija je izvođena u rastvoru sumporne kiseline (H2SO4) pri čemu dolazi do hidrolize EtO u etilen-glikol. Efikasnost apsorpcije EtO opada sa povećanjem koncentracije etilen-glikola u apsorpcionom rastvoru. Rezultati eksperimentalnih ispitivanja su pokazali da se može postići visok stepen efikasnosti uklanjanja EtO (> 98%) pod uslovom da je vreme kontakta dovoljno dugo (oko 25s).",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Removal of ethylene oxide from waste gases by absorption, Uklanjanje etilen-oksida iz otpadnih gasova postupkom apsorpcije",
pages = "395-389",
number = "4",
volume = "65",
doi = "10.2298/HEMIND110329026A"
}
Arsenijević, Z., Grbavčić, Ž., Grbić, B., Radić, N., Garić-Grulović, R.,& Đuriš, M.. (2011). Removal of ethylene oxide from waste gases by absorption. in Hemijska industrija
Association of Chemical Engineers of Serbia., 65(4), 389-395.
https://doi.org/10.2298/HEMIND110329026A
Arsenijević Z, Grbavčić Ž, Grbić B, Radić N, Garić-Grulović R, Đuriš M. Removal of ethylene oxide from waste gases by absorption. in Hemijska industrija. 2011;65(4):389-395.
doi:10.2298/HEMIND110329026A .
Arsenijević, Zorana, Grbavčić, Željko, Grbić, Boško, Radić, Nenad, Garić-Grulović, Radmila, Đuriš, Mihal, "Removal of ethylene oxide from waste gases by absorption" in Hemijska industrija, 65, no. 4 (2011):389-395,
https://doi.org/10.2298/HEMIND110329026A . .
1
1
2

Structure sensitivity of dimethylamine deep oxidation over Pt/Al2O3 catalysts

Grbić, Boško; Radić, Nenad; Arsenijević, Zorana; Garić-Grulović, Radmila; Grbavčić, Željko

(Elsevier, 2009)

TY  - JOUR
AU  - Grbić, Boško
AU  - Radić, Nenad
AU  - Arsenijević, Zorana
AU  - Garić-Grulović, Radmila
AU  - Grbavčić, Željko
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5539
AB  - The deep oxidation of dimethylamine (DMA) was studied over Pt/Al2O3 catalysts with small (1 nm) and large (7.8-15.5 nm) Pt crystallite sizes. The turnover frequency (TOF) was higher for the large than for the small Pt crystallites, indicating that the reaction is structure sensitive. Two kinetic models were used to interpret the obtained results, i.e., the Mars van Krevelen and a mechanism based on the adsorption of oxygen and adsorption of dimethylamine on different active sites were employed. Both models showed that the activation energy for the oxygen chemisorption rate constant (k(o)) decreased with increasing of Pt crystallite size and that the activation energy for the surface reaction rate constant (k(i)) was independent of the Pt crystallite size. The structure sensitivity may be explained by differences in the reactivity of the oxygen adsorbed on these Pt crystallites. The Mars van Krevelen model fits the TOF values very well at concentrations of DMA higher than 1500 ppm, while in the lower concentrations region, the model under predicts the experimental data. The model based on the adsorption of oxygen and DMA on different active sites fits the experimental data quite well over the whole temperature and concentration range. The fitted values of the Henry adsorption constant are independent of the Pt crystallite size.
PB  - Elsevier
T2  - Applied Catalysis B-Environmental
T1  - Structure sensitivity of dimethylamine deep oxidation over Pt/Al2O3 catalysts
EP  - 484
IS  - 3-4
SP  - 478
VL  - 90
DO  - 10.1016/j.apcatb.2009.04.008
ER  - 
@article{
author = "Grbić, Boško and Radić, Nenad and Arsenijević, Zorana and Garić-Grulović, Radmila and Grbavčić, Željko",
year = "2009",
abstract = "The deep oxidation of dimethylamine (DMA) was studied over Pt/Al2O3 catalysts with small (1 nm) and large (7.8-15.5 nm) Pt crystallite sizes. The turnover frequency (TOF) was higher for the large than for the small Pt crystallites, indicating that the reaction is structure sensitive. Two kinetic models were used to interpret the obtained results, i.e., the Mars van Krevelen and a mechanism based on the adsorption of oxygen and adsorption of dimethylamine on different active sites were employed. Both models showed that the activation energy for the oxygen chemisorption rate constant (k(o)) decreased with increasing of Pt crystallite size and that the activation energy for the surface reaction rate constant (k(i)) was independent of the Pt crystallite size. The structure sensitivity may be explained by differences in the reactivity of the oxygen adsorbed on these Pt crystallites. The Mars van Krevelen model fits the TOF values very well at concentrations of DMA higher than 1500 ppm, while in the lower concentrations region, the model under predicts the experimental data. The model based on the adsorption of oxygen and DMA on different active sites fits the experimental data quite well over the whole temperature and concentration range. The fitted values of the Henry adsorption constant are independent of the Pt crystallite size.",
publisher = "Elsevier",
journal = "Applied Catalysis B-Environmental",
title = "Structure sensitivity of dimethylamine deep oxidation over Pt/Al2O3 catalysts",
pages = "484-478",
number = "3-4",
volume = "90",
doi = "10.1016/j.apcatb.2009.04.008"
}
Grbić, B., Radić, N., Arsenijević, Z., Garić-Grulović, R.,& Grbavčić, Ž.. (2009). Structure sensitivity of dimethylamine deep oxidation over Pt/Al2O3 catalysts. in Applied Catalysis B-Environmental
Elsevier., 90(3-4), 478-484.
https://doi.org/10.1016/j.apcatb.2009.04.008
Grbić B, Radić N, Arsenijević Z, Garić-Grulović R, Grbavčić Ž. Structure sensitivity of dimethylamine deep oxidation over Pt/Al2O3 catalysts. in Applied Catalysis B-Environmental. 2009;90(3-4):478-484.
doi:10.1016/j.apcatb.2009.04.008 .
Grbić, Boško, Radić, Nenad, Arsenijević, Zorana, Garić-Grulović, Radmila, Grbavčić, Željko, "Structure sensitivity of dimethylamine deep oxidation over Pt/Al2O3 catalysts" in Applied Catalysis B-Environmental, 90, no. 3-4 (2009):478-484,
https://doi.org/10.1016/j.apcatb.2009.04.008 . .
5
1
6

Ethylene oxide removal by sorption on aluminium oxide

Arsenijević, Zorana; Grbić, Boško; Radić, Nenad; Garić-Grulović, Radmila; Grbavčić, Željko

(Association of Chemical Engineers of Serbia, 2009)

TY  - JOUR
AU  - Arsenijević, Zorana
AU  - Grbić, Boško
AU  - Radić, Nenad
AU  - Garić-Grulović, Radmila
AU  - Grbavčić, Željko
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5527
AB  - The dynamics of ethylene oxide sorption and desorption on Al2O3 sorbent were investigated. The investigations of ethylene oxide sorption on Al2O3 show that significant sorption appeared above 125°C. The removal of sorbed ethylene oxide from Al2O3 was achieved by continuous increasing of the temperature up to 450°C in air stream. The analysis of desorbed products show that 90% of adsorbed ethylene oxide is converted to CO2 and the rest consists of the three derivatives of ethylene oxide. The exact composition of desorbed organic products will be determined in further investigation. The desorption temperature profiles point out the presence of two exothermic picks, as was confirmed by detection of CO2 and derivates of ethylene oxide at these temperatures. Investigation of textural characteristics and thermal stability of Al2O3 sorbent show that there are no changes of any characteristics of Al2O3 in sorption/desorption operating temperatures regimes. Only at 700°C the specific surface area of Al2O3 decreases of about 10%. This indicates that the investigated Al2O3 is convenient material for removal of ethylene oxide by sorption.
AB  - U ovom radu prikazana su ispitivanja dinamike sorpcije i desorpcije etilen oksida na Al2O3 kao i sorpcioni kapaciteti, temperaturni režimi desorpcije i sastav produkata desorpcije etilen oksida. Rezultati su ukazali da sferni Al2O3 sorbent poseduje zadovoljavajuće sorpcione karakteristike za uklanjanje etilen oksida. Na temperaturama iznad 125°C ne dolazi do značajnog povećanja kapaciteta sorpcije etilen oksida. Produkti desorpcije etilen oksida sa Al2O3 sorbenta, postepenim povećanjem temperature u vazduhu, sadrže oko 90% CO2, a ostatak čine derivati etilen oksida. Ispitivanja teksturalnih karakteristika i termičke stabilnosti Al2O3 sorbenta pokazala su da u sorpciono/desorpcionom operativnom režimu nema nikakvih teksturalnih promena sorbenta. Ovo ukazuje da je ispitivana alumina pogodan materijal za sorpciono uklanjanje etilen oksida.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Ethylene oxide removal by sorption on aluminium oxide
T1  - Uklanjanje etilen oksida sorpcijom na aluminijum oksidu
EP  - 343
IS  - 4
SP  - 337
VL  - 63
DO  - 10.2298/HEMIND0904337A
ER  - 
@article{
author = "Arsenijević, Zorana and Grbić, Boško and Radić, Nenad and Garić-Grulović, Radmila and Grbavčić, Željko",
year = "2009",
abstract = "The dynamics of ethylene oxide sorption and desorption on Al2O3 sorbent were investigated. The investigations of ethylene oxide sorption on Al2O3 show that significant sorption appeared above 125°C. The removal of sorbed ethylene oxide from Al2O3 was achieved by continuous increasing of the temperature up to 450°C in air stream. The analysis of desorbed products show that 90% of adsorbed ethylene oxide is converted to CO2 and the rest consists of the three derivatives of ethylene oxide. The exact composition of desorbed organic products will be determined in further investigation. The desorption temperature profiles point out the presence of two exothermic picks, as was confirmed by detection of CO2 and derivates of ethylene oxide at these temperatures. Investigation of textural characteristics and thermal stability of Al2O3 sorbent show that there are no changes of any characteristics of Al2O3 in sorption/desorption operating temperatures regimes. Only at 700°C the specific surface area of Al2O3 decreases of about 10%. This indicates that the investigated Al2O3 is convenient material for removal of ethylene oxide by sorption., U ovom radu prikazana su ispitivanja dinamike sorpcije i desorpcije etilen oksida na Al2O3 kao i sorpcioni kapaciteti, temperaturni režimi desorpcije i sastav produkata desorpcije etilen oksida. Rezultati su ukazali da sferni Al2O3 sorbent poseduje zadovoljavajuće sorpcione karakteristike za uklanjanje etilen oksida. Na temperaturama iznad 125°C ne dolazi do značajnog povećanja kapaciteta sorpcije etilen oksida. Produkti desorpcije etilen oksida sa Al2O3 sorbenta, postepenim povećanjem temperature u vazduhu, sadrže oko 90% CO2, a ostatak čine derivati etilen oksida. Ispitivanja teksturalnih karakteristika i termičke stabilnosti Al2O3 sorbenta pokazala su da u sorpciono/desorpcionom operativnom režimu nema nikakvih teksturalnih promena sorbenta. Ovo ukazuje da je ispitivana alumina pogodan materijal za sorpciono uklanjanje etilen oksida.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Ethylene oxide removal by sorption on aluminium oxide, Uklanjanje etilen oksida sorpcijom na aluminijum oksidu",
pages = "343-337",
number = "4",
volume = "63",
doi = "10.2298/HEMIND0904337A"
}
Arsenijević, Z., Grbić, B., Radić, N., Garić-Grulović, R.,& Grbavčić, Ž.. (2009). Ethylene oxide removal by sorption on aluminium oxide. in Hemijska industrija
Association of Chemical Engineers of Serbia., 63(4), 337-343.
https://doi.org/10.2298/HEMIND0904337A
Arsenijević Z, Grbić B, Radić N, Garić-Grulović R, Grbavčić Ž. Ethylene oxide removal by sorption on aluminium oxide. in Hemijska industrija. 2009;63(4):337-343.
doi:10.2298/HEMIND0904337A .
Arsenijević, Zorana, Grbić, Boško, Radić, Nenad, Garić-Grulović, Radmila, Grbavčić, Željko, "Ethylene oxide removal by sorption on aluminium oxide" in Hemijska industrija, 63, no. 4 (2009):337-343,
https://doi.org/10.2298/HEMIND0904337A . .

Prevention and control of dimethylamine vapors emission: Herbicide production plant

Arsenijević, Zorana; Grbić, Boško; Grbavčić, Željko; Miletić, Saša; Savčić, Gordan; Radić, Nenad; Garić-Grulović, Radmila

(Association of the Chemical Engineers of Serbia, 2008)

TY  - JOUR
AU  - Arsenijević, Zorana
AU  - Grbić, Boško
AU  - Grbavčić, Željko
AU  - Miletić, Saša
AU  - Savčić, Gordan
AU  - Radić, Nenad
AU  - Garić-Grulović, Radmila
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5577
AB  - The widely used herbicide, dimethylamine salt of 2,4-dichlorophenoxy acetic acid (2,4-D-DMA), is usually prepared by mixing a dimethylamine (DMA) aqueous solution with a solid 2,4-dichlorophenoxy acetic acid (2,4-D). The vapors of the both, reactants and products, are potentially hazardous for the environment. The contribution of DMA vapors in overall pollution from this process is most significant, concerning vapor pressures data of these pollutants. Therefore, the control of the air pollution in the manufacture and handling of methylamines is very important. Within this paper, the optimal air pollution control system in preparation of 2,4-D-DMA was developed for the pesticides manufacturing industry. This study employed the simple pollution prevention concept to reduce the emission of DMA vapors at the source. The investigations were performed on the pilot plant scale. To reduce the emission of DMA vapors, the effluent gases from the herbicide preparation zone were passed through the packed bed scrubber (water scrubbing medium), and the catalytic reactor in sequence. The end result is a substantially improved air quality in the working area, as well as in the urbanized areas located near the chemical plant.
PB  - Association of the Chemical Engineers of Serbia
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - Prevention and control of dimethylamine vapors emission: Herbicide production plant
EP  - 243
IS  - 4
SP  - 239
VL  - 14
DO  - 10.2298/CICEQ0804239A
ER  - 
@article{
author = "Arsenijević, Zorana and Grbić, Boško and Grbavčić, Željko and Miletić, Saša and Savčić, Gordan and Radić, Nenad and Garić-Grulović, Radmila",
year = "2008",
abstract = "The widely used herbicide, dimethylamine salt of 2,4-dichlorophenoxy acetic acid (2,4-D-DMA), is usually prepared by mixing a dimethylamine (DMA) aqueous solution with a solid 2,4-dichlorophenoxy acetic acid (2,4-D). The vapors of the both, reactants and products, are potentially hazardous for the environment. The contribution of DMA vapors in overall pollution from this process is most significant, concerning vapor pressures data of these pollutants. Therefore, the control of the air pollution in the manufacture and handling of methylamines is very important. Within this paper, the optimal air pollution control system in preparation of 2,4-D-DMA was developed for the pesticides manufacturing industry. This study employed the simple pollution prevention concept to reduce the emission of DMA vapors at the source. The investigations were performed on the pilot plant scale. To reduce the emission of DMA vapors, the effluent gases from the herbicide preparation zone were passed through the packed bed scrubber (water scrubbing medium), and the catalytic reactor in sequence. The end result is a substantially improved air quality in the working area, as well as in the urbanized areas located near the chemical plant.",
publisher = "Association of the Chemical Engineers of Serbia",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "Prevention and control of dimethylamine vapors emission: Herbicide production plant",
pages = "243-239",
number = "4",
volume = "14",
doi = "10.2298/CICEQ0804239A"
}
Arsenijević, Z., Grbić, B., Grbavčić, Ž., Miletić, S., Savčić, G., Radić, N.,& Garić-Grulović, R.. (2008). Prevention and control of dimethylamine vapors emission: Herbicide production plant. in Chemical Industry and Chemical Engineering Quarterly / CICEQ
Association of the Chemical Engineers of Serbia., 14(4), 239-243.
https://doi.org/10.2298/CICEQ0804239A
Arsenijević Z, Grbić B, Grbavčić Ž, Miletić S, Savčić G, Radić N, Garić-Grulović R. Prevention and control of dimethylamine vapors emission: Herbicide production plant. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2008;14(4):239-243.
doi:10.2298/CICEQ0804239A .
Arsenijević, Zorana, Grbić, Boško, Grbavčić, Željko, Miletić, Saša, Savčić, Gordan, Radić, Nenad, Garić-Grulović, Radmila, "Prevention and control of dimethylamine vapors emission: Herbicide production plant" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 14, no. 4 (2008):239-243,
https://doi.org/10.2298/CICEQ0804239A . .
1
1

Removal of volatile organic compounds from activated carbon by thermal Desorption and catalytic combustion

Rankovic, D.; Arsenijević, Zorana; Radić, Nenad; Grbić, Boško; Grbavčić, Željko

(Maik Nauka/Interperiodica/Springer, New York, 2007)

TY  - JOUR
AU  - Rankovic, D.
AU  - Arsenijević, Zorana
AU  - Radić, Nenad
AU  - Grbić, Boško
AU  - Grbavčić, Željko
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5496
AB  - The thermal desorption of saturated activated carbon discharged from an industrial adsorber and catalytic oxidation of desorbed products over a Pt/Al2O3 catalyst were investigated. The activated carbon is almost completely regenerated by flushing with air at 200 degrees C for 30 min. Desorbed products are fully oxidized over the Pt/Al2O3 catalyst above 275 degrees C.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Russian Journal of Physical Chemistry A
T1  - Removal of volatile organic compounds from activated carbon by thermal Desorption and catalytic combustion
EP  - 1391
IS  - 9
SP  - 1388
VL  - 81
DO  - 10.1134/S0036024407090075
ER  - 
@article{
author = "Rankovic, D. and Arsenijević, Zorana and Radić, Nenad and Grbić, Boško and Grbavčić, Željko",
year = "2007",
abstract = "The thermal desorption of saturated activated carbon discharged from an industrial adsorber and catalytic oxidation of desorbed products over a Pt/Al2O3 catalyst were investigated. The activated carbon is almost completely regenerated by flushing with air at 200 degrees C for 30 min. Desorbed products are fully oxidized over the Pt/Al2O3 catalyst above 275 degrees C.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Russian Journal of Physical Chemistry A",
title = "Removal of volatile organic compounds from activated carbon by thermal Desorption and catalytic combustion",
pages = "1391-1388",
number = "9",
volume = "81",
doi = "10.1134/S0036024407090075"
}
Rankovic, D., Arsenijević, Z., Radić, N., Grbić, B.,& Grbavčić, Ž.. (2007). Removal of volatile organic compounds from activated carbon by thermal Desorption and catalytic combustion. in Russian Journal of Physical Chemistry A
Maik Nauka/Interperiodica/Springer, New York., 81(9), 1388-1391.
https://doi.org/10.1134/S0036024407090075
Rankovic D, Arsenijević Z, Radić N, Grbić B, Grbavčić Ž. Removal of volatile organic compounds from activated carbon by thermal Desorption and catalytic combustion. in Russian Journal of Physical Chemistry A. 2007;81(9):1388-1391.
doi:10.1134/S0036024407090075 .
Rankovic, D., Arsenijević, Zorana, Radić, Nenad, Grbić, Boško, Grbavčić, Željko, "Removal of volatile organic compounds from activated carbon by thermal Desorption and catalytic combustion" in Russian Journal of Physical Chemistry A, 81, no. 9 (2007):1388-1391,
https://doi.org/10.1134/S0036024407090075 . .
6
5
5

Catalytic incineration of ethylene oxide in the packed bed reactor

Arsenijević, Zorana; Grbić, Boško; Radić, Nenad; Grbavčić, Željko

(Elsevier, 2006)

TY  - JOUR
AU  - Arsenijević, Zorana
AU  - Grbić, Boško
AU  - Radić, Nenad
AU  - Grbavčić, Željko
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5424
AB  - Investigations of catalytic incineration of ethylene oxide (ETO) over Pt/Al2O3 catalyst have been conducted on laboratory and pilot scale level. The measurements of the reaction rate conducted under gradientless conditions have been used to evaluate kinetics parameters valuable for reactor modeling. A reactor model is proposed which could a priori predict behavior of catalytic convertor under various operating conditions (inlet temperature, inlet pollutant concentration and space velocity) based on the kinetics parameters and mass and energy balances. The results show satisfactory agreement between predicted and experimental values of conversion and temperature profiles along the catalyst bed.
PB  - Elsevier
T2  - Chemical Engineering Journal
T1  - Catalytic incineration of ethylene oxide in the packed bed reactor
EP  - 178
IS  - 3
SP  - 173
VL  - 116
DO  - 10.1016/j.cej.2005.11.007
ER  - 
@article{
author = "Arsenijević, Zorana and Grbić, Boško and Radić, Nenad and Grbavčić, Željko",
year = "2006",
abstract = "Investigations of catalytic incineration of ethylene oxide (ETO) over Pt/Al2O3 catalyst have been conducted on laboratory and pilot scale level. The measurements of the reaction rate conducted under gradientless conditions have been used to evaluate kinetics parameters valuable for reactor modeling. A reactor model is proposed which could a priori predict behavior of catalytic convertor under various operating conditions (inlet temperature, inlet pollutant concentration and space velocity) based on the kinetics parameters and mass and energy balances. The results show satisfactory agreement between predicted and experimental values of conversion and temperature profiles along the catalyst bed.",
publisher = "Elsevier",
journal = "Chemical Engineering Journal",
title = "Catalytic incineration of ethylene oxide in the packed bed reactor",
pages = "178-173",
number = "3",
volume = "116",
doi = "10.1016/j.cej.2005.11.007"
}
Arsenijević, Z., Grbić, B., Radić, N.,& Grbavčić, Ž.. (2006). Catalytic incineration of ethylene oxide in the packed bed reactor. in Chemical Engineering Journal
Elsevier., 116(3), 173-178.
https://doi.org/10.1016/j.cej.2005.11.007
Arsenijević Z, Grbić B, Radić N, Grbavčić Ž. Catalytic incineration of ethylene oxide in the packed bed reactor. in Chemical Engineering Journal. 2006;116(3):173-178.
doi:10.1016/j.cej.2005.11.007 .
Arsenijević, Zorana, Grbić, Boško, Radić, Nenad, Grbavčić, Željko, "Catalytic incineration of ethylene oxide in the packed bed reactor" in Chemical Engineering Journal, 116, no. 3 (2006):173-178,
https://doi.org/10.1016/j.cej.2005.11.007 . .
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