TY  - JOUR
AU  - Miladinović, Marija R.
AU  - Zdujić, Miodrag
AU  - Veljović, Đorđe
AU  - Krstić, Jugoslav
AU  - Banković-Ilić, Ivana B.
AU  - Veljković, Vlada B.
AU  - Stamenković, Olivera S.
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4350
AB  - The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, Ny physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanolto-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 degrees C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 degrees C.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Renewable Energy
T1  - Valorization of walnut shell ash as a catalyst for biodiesel production
EP  - 1043
SP  - 1033
VL  - 147
DO  - 10.1016/j.renene.2019.09.056
ER  - 

@article{
author = "Miladinović, Marija R. and Zdujić, Miodrag and Veljović, Đorđe and Krstić, Jugoslav and Banković-Ilić, Ivana B. and Veljković, Vlada B. and Stamenković, Olivera S.",
year = "2020",
abstract = "The catalytic activity of the walnut shell ash was investigated in the biodiesel production by the sunflower oil methanolysis. The catalyst was characterized by the TG-DTA, XRD, Hg porosimetry, Ny physisorption, SEM, and Hammett method. In addition, the effects of the catalyst loading and the methanolto-oil molar ratio on the methyl esters synthesis were tested at the reaction temperature of 60 degrees C. The walnut shell ash provided a very fast reaction and a high FAME content (over 98%). As the reaction occurred in the absence of triacylglycerols mass transfer limitation, the pseudo-first-order model was employed for describing the kinetics of the reaction. The catalyst was successfully reused four times after the regeneration of the catalytic activity by recalcination at 800 degrees C.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Renewable Energy",
title = "Valorization of walnut shell ash as a catalyst for biodiesel production",
pages = "1043-1033",
volume = "147",
doi = "10.1016/j.renene.2019.09.056"
}

Miladinović, M. R., Zdujić, M., Veljović, Đ., Krstić, J., Banković-Ilić, I. B., Veljković, V. B.,& Stamenković, O. S.. (2020). Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy
Pergamon-Elsevier Science Ltd, Oxford., 147, 1033-1043.
https://doi.org/10.1016/j.renene.2019.09.056

Miladinović MR, Zdujić M, Veljović Đ, Krstić J, Banković-Ilić IB, Veljković VB, Stamenković OS. Valorization of walnut shell ash as a catalyst for biodiesel production. in Renewable Energy. 2020;147:1033-1043.
doi:10.1016/j.renene.2019.09.056 .

Miladinović, Marija R., Zdujić, Miodrag, Veljović, Đorđe, Krstić, Jugoslav, Banković-Ilić, Ivana B., Veljković, Vlada B., Stamenković, Olivera S., "Valorization of walnut shell ash as a catalyst for biodiesel production" in Renewable Energy, 147 (2020):1033-1043,
https://doi.org/10.1016/j.renene.2019.09.056 . .

TY  - JOUR
AU  - Miladinović, Marija R.
AU  - Stojković, Ivan
AU  - Velicković, Ana V.
AU  - Stamenković, Olivera S.
AU  - Banković-Ilić, Ivana B.
AU  - Veljković, Vlada B.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4067
AB  - Continuous biodiesel production from a waste pig-roasting lard, methanol and KOH was carried out in a reciprocating plate reactor (RPR) using a factorial design containing three process factors, namely methanol/lard molar ratio, catalyst loading, and normalized height of the reactor. The main goals were to optimize the influential process factors with respect to biodiesel purity using the response surface methodology and to model the kinetics of the transesterification reaction in order to describe the change of triacylglycerols (TAG) and fatty acid methyl esters (FAME) concentrations along the RPR height. The first-order rate law was proved for both the reaction and the mass transfer. The model of the changing reaction mechanism and mass transfer of TAG was also applicable. Both kinetic models agreed with the experimental concentrations of TAG and FAME determined along the RPR height.
PB  - Chemical Industry Press Co Ltd, Beijing
T2  - Chinese Journal of Chemical Engineering
T1  - Optimization and kinetic modeling of waste lard methanolysis in a continuous reciprocating plate reactor
EP  - 2490
IS  - 10
SP  - 2481
VL  - 27
DO  - 10.1016/j.cjche.2019.02.019
ER  - 

@article{
author = "Miladinović, Marija R. and Stojković, Ivan and Velicković, Ana V. and Stamenković, Olivera S. and Banković-Ilić, Ivana B. and Veljković, Vlada B.",
year = "2019",
abstract = "Continuous biodiesel production from a waste pig-roasting lard, methanol and KOH was carried out in a reciprocating plate reactor (RPR) using a factorial design containing three process factors, namely methanol/lard molar ratio, catalyst loading, and normalized height of the reactor. The main goals were to optimize the influential process factors with respect to biodiesel purity using the response surface methodology and to model the kinetics of the transesterification reaction in order to describe the change of triacylglycerols (TAG) and fatty acid methyl esters (FAME) concentrations along the RPR height. The first-order rate law was proved for both the reaction and the mass transfer. The model of the changing reaction mechanism and mass transfer of TAG was also applicable. Both kinetic models agreed with the experimental concentrations of TAG and FAME determined along the RPR height.",
publisher = "Chemical Industry Press Co Ltd, Beijing",
journal = "Chinese Journal of Chemical Engineering",
title = "Optimization and kinetic modeling of waste lard methanolysis in a continuous reciprocating plate reactor",
pages = "2490-2481",
number = "10",
volume = "27",
doi = "10.1016/j.cjche.2019.02.019"
}

Miladinović, M. R., Stojković, I., Velicković, A. V., Stamenković, O. S., Banković-Ilić, I. B.,& Veljković, V. B.. (2019). Optimization and kinetic modeling of waste lard methanolysis in a continuous reciprocating plate reactor. in Chinese Journal of Chemical Engineering
Chemical Industry Press Co Ltd, Beijing., 27(10), 2481-2490.
https://doi.org/10.1016/j.cjche.2019.02.019

Miladinović MR, Stojković I, Velicković AV, Stamenković OS, Banković-Ilić IB, Veljković VB. Optimization and kinetic modeling of waste lard methanolysis in a continuous reciprocating plate reactor. in Chinese Journal of Chemical Engineering. 2019;27(10):2481-2490.
doi:10.1016/j.cjche.2019.02.019 .

Miladinović, Marija R., Stojković, Ivan, Velicković, Ana V., Stamenković, Olivera S., Banković-Ilić, Ivana B., Veljković, Vlada B., "Optimization and kinetic modeling of waste lard methanolysis in a continuous reciprocating plate reactor" in Chinese Journal of Chemical Engineering, 27, no. 10 (2019):2481-2490,
https://doi.org/10.1016/j.cjche.2019.02.019 . .

TY  - JOUR
AU  - Stojković, Ivan
AU  - Miladinović, Marija R.
AU  - Stamenković, Olivera S.
AU  - Banković-Ilić, Ivana B.
AU  - Povrenović, Dragan
AU  - Veljković, Vlada B.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3289
AB  - Waste lard from piglet roasting and quicklime (basically CaO) as a priceless fatty feedstock and a cheap solid catalyst, respectively were tested for the biodiesel production by methanolysis in a batch stirred reactor at moderate reaction temperatures (40-60 degrees C) for the kinetic study. For comparison, unheated and heated pork lards, as well as pure CaO, were also included in this study. The mass transfer limitation was observed in the initial period of all methanolysis reactions. The kinetic model combining the changing-and first-order reaction rate laws with respect to triacylglycerols and fatty acid methyl esters (FAMEs), respectively was verified for all three lardy feedstocks and both catalysts. The catalytic activity of quicklime was the same as that of pure CaO. The activation energy was demonstrated to be independent of the feedstock and the catalyst (59.1 +/- 0.6 kJ/mol) but the waste lard reacted faster than the unheated and heated pork lards. At the methanol-to-lard molar ratio of 6:1, the catalyst amount of 5% (based on the lard weight) and the reaction temperature of 60 degrees C, a high FAME concentration in the final ester products (97.5%) within 60 min were achieved with the waste lard and quicklime in two consecutive batches. The same kinetic model was applicable in a continuous packed-bed tubular reactor filled with quicklime bits (2.0-3.15 mm) at the methanol-to-waste lard molar ratio of 6:1, the reaction temperature of 60 degrees C and the residence time of 1 h. Under these conditions, the biodiesel yield was 97.6%, while the FAME concentration in the biodiesel product was 96.5%.
PB  - Elsevier Sci Ltd, Oxford
T2  - Fuel
T1  - Biodiesel production by methanolysis of waste lard from piglet roasting over quicklime
EP  - 466
SP  - 454
VL  - 182
DO  - 10.1016/j.fuel.2016.06.014
ER  - 

@article{
author = "Stojković, Ivan and Miladinović, Marija R. and Stamenković, Olivera S. and Banković-Ilić, Ivana B. and Povrenović, Dragan and Veljković, Vlada B.",
year = "2016",
abstract = "Waste lard from piglet roasting and quicklime (basically CaO) as a priceless fatty feedstock and a cheap solid catalyst, respectively were tested for the biodiesel production by methanolysis in a batch stirred reactor at moderate reaction temperatures (40-60 degrees C) for the kinetic study. For comparison, unheated and heated pork lards, as well as pure CaO, were also included in this study. The mass transfer limitation was observed in the initial period of all methanolysis reactions. The kinetic model combining the changing-and first-order reaction rate laws with respect to triacylglycerols and fatty acid methyl esters (FAMEs), respectively was verified for all three lardy feedstocks and both catalysts. The catalytic activity of quicklime was the same as that of pure CaO. The activation energy was demonstrated to be independent of the feedstock and the catalyst (59.1 +/- 0.6 kJ/mol) but the waste lard reacted faster than the unheated and heated pork lards. At the methanol-to-lard molar ratio of 6:1, the catalyst amount of 5% (based on the lard weight) and the reaction temperature of 60 degrees C, a high FAME concentration in the final ester products (97.5%) within 60 min were achieved with the waste lard and quicklime in two consecutive batches. The same kinetic model was applicable in a continuous packed-bed tubular reactor filled with quicklime bits (2.0-3.15 mm) at the methanol-to-waste lard molar ratio of 6:1, the reaction temperature of 60 degrees C and the residence time of 1 h. Under these conditions, the biodiesel yield was 97.6%, while the FAME concentration in the biodiesel product was 96.5%.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Fuel",
title = "Biodiesel production by methanolysis of waste lard from piglet roasting over quicklime",
pages = "466-454",
volume = "182",
doi = "10.1016/j.fuel.2016.06.014"
}

Stojković, I., Miladinović, M. R., Stamenković, O. S., Banković-Ilić, I. B., Povrenović, D.,& Veljković, V. B.. (2016). Biodiesel production by methanolysis of waste lard from piglet roasting over quicklime. in Fuel
Elsevier Sci Ltd, Oxford., 182, 454-466.
https://doi.org/10.1016/j.fuel.2016.06.014

Stojković I, Miladinović MR, Stamenković OS, Banković-Ilić IB, Povrenović D, Veljković VB. Biodiesel production by methanolysis of waste lard from piglet roasting over quicklime. in Fuel. 2016;182:454-466.
doi:10.1016/j.fuel.2016.06.014 .

Stojković, Ivan, Miladinović, Marija R., Stamenković, Olivera S., Banković-Ilić, Ivana B., Povrenović, Dragan, Veljković, Vlada B., "Biodiesel production by methanolysis of waste lard from piglet roasting over quicklime" in Fuel, 182 (2016):454-466,
https://doi.org/10.1016/j.fuel.2016.06.014 . .

TY  - JOUR
AU  - Stojković, Ivan
AU  - Banković-Ilić, Ivana B.
AU  - Velicković, Ana V.
AU  - Avramović, Jelena M.
AU  - Stamenković, Olivera S.
AU  - Povrenović, Dragan
AU  - Veljković, Vlada B.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3424
AB  - The KOH-catalyzed methanolysis of waste lard from piglet roasting in a moderate temperature range was investigated in order to establish the reaction kinetics. For comparison, lard and thermally treated lard were also included in the study. All three reactions occurred via a pseudo-homogeneous regime where the chemical reaction controlled the overall process kinetics. A simple kinetic model comprising the irreversible pseudo-first-order reaction was demonstrated for all three fatty feedstocks. The reaction rate constant increases with raising the fatty acid unsaturation degree. The final products satisfied the EN 14214 biodiesel standard specifications.
PB  - Wiley-VCH Verlag Gmbh, Weinheim
T2  - Chemical Engineering & Technology
T1  - Waste Lard Methanolysis Catalyzed by KOH at Moderate Temperatures
EP  - 750
IS  - 4
SP  - 741
VL  - 39
DO  - 10.1002/ceat.201400705
ER  - 

@article{
author = "Stojković, Ivan and Banković-Ilić, Ivana B. and Velicković, Ana V. and Avramović, Jelena M. and Stamenković, Olivera S. and Povrenović, Dragan and Veljković, Vlada B.",
year = "2016",
abstract = "The KOH-catalyzed methanolysis of waste lard from piglet roasting in a moderate temperature range was investigated in order to establish the reaction kinetics. For comparison, lard and thermally treated lard were also included in the study. All three reactions occurred via a pseudo-homogeneous regime where the chemical reaction controlled the overall process kinetics. A simple kinetic model comprising the irreversible pseudo-first-order reaction was demonstrated for all three fatty feedstocks. The reaction rate constant increases with raising the fatty acid unsaturation degree. The final products satisfied the EN 14214 biodiesel standard specifications.",
publisher = "Wiley-VCH Verlag Gmbh, Weinheim",
journal = "Chemical Engineering & Technology",
title = "Waste Lard Methanolysis Catalyzed by KOH at Moderate Temperatures",
pages = "750-741",
number = "4",
volume = "39",
doi = "10.1002/ceat.201400705"
}

Stojković, I., Banković-Ilić, I. B., Velicković, A. V., Avramović, J. M., Stamenković, O. S., Povrenović, D.,& Veljković, V. B.. (2016). Waste Lard Methanolysis Catalyzed by KOH at Moderate Temperatures. in Chemical Engineering & Technology
Wiley-VCH Verlag Gmbh, Weinheim., 39(4), 741-750.
https://doi.org/10.1002/ceat.201400705

Stojković I, Banković-Ilić IB, Velicković AV, Avramović JM, Stamenković OS, Povrenović D, Veljković VB. Waste Lard Methanolysis Catalyzed by KOH at Moderate Temperatures. in Chemical Engineering & Technology. 2016;39(4):741-750.
doi:10.1002/ceat.201400705 .

Stojković, Ivan, Banković-Ilić, Ivana B., Velicković, Ana V., Avramović, Jelena M., Stamenković, Olivera S., Povrenović, Dragan, Veljković, Vlada B., "Waste Lard Methanolysis Catalyzed by KOH at Moderate Temperatures" in Chemical Engineering & Technology, 39, no. 4 (2016):741-750,
https://doi.org/10.1002/ceat.201400705 . .

TY  - JOUR
AU  - Banković-Ilić, Ivana B.
AU  - Stojković, Ivan
AU  - Stamenković, Olivera S.
AU  - Veljković, Vlada B.
AU  - Hung, Yung-Tse
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2839
AB  - Biodiesel, an alternate and ecologically acceptable substitute for the conventional fuel, is usually produced from a wide range of edible vegetable oils, which are normally used for human consumption and whose prices are expected to increase in the future. In this regard, reliable and low-cost raw materials have increasingly drawn interest for biodiesel production, such as by-products of the meat-processing industries or waste animal fats. This paper provides a review of the different methods employed for biodiesel production from waste animal fats employing transesterification reaction. The aim of this paper is to present the exploitation possibilities of waste animal fats as low-cost feedstocks for biodiesel production. Also, the various methods for treatment of waste animal fats such as chemical (homogeneous and heterogeneous) and enzyme catalysis as well as non-catalytic processes were considered with emphasis on the influence of the operating and reaction conditions on the process rate and the ester yield. In depth discussions were given to the process optimization, kinetics and possibilities for improvement of biodiesel production from waste animal.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Renewable & Sustainable Energy Reviews
T1  - Waste animal fats as feedstocks for biodiesel production
EP  - 254
SP  - 238
VL  - 32
DO  - 10.1016/j.rser.2014.01.038
ER  - 

@article{
author = "Banković-Ilić, Ivana B. and Stojković, Ivan and Stamenković, Olivera S. and Veljković, Vlada B. and Hung, Yung-Tse",
year = "2014",
abstract = "Biodiesel, an alternate and ecologically acceptable substitute for the conventional fuel, is usually produced from a wide range of edible vegetable oils, which are normally used for human consumption and whose prices are expected to increase in the future. In this regard, reliable and low-cost raw materials have increasingly drawn interest for biodiesel production, such as by-products of the meat-processing industries or waste animal fats. This paper provides a review of the different methods employed for biodiesel production from waste animal fats employing transesterification reaction. The aim of this paper is to present the exploitation possibilities of waste animal fats as low-cost feedstocks for biodiesel production. Also, the various methods for treatment of waste animal fats such as chemical (homogeneous and heterogeneous) and enzyme catalysis as well as non-catalytic processes were considered with emphasis on the influence of the operating and reaction conditions on the process rate and the ester yield. In depth discussions were given to the process optimization, kinetics and possibilities for improvement of biodiesel production from waste animal.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Renewable & Sustainable Energy Reviews",
title = "Waste animal fats as feedstocks for biodiesel production",
pages = "254-238",
volume = "32",
doi = "10.1016/j.rser.2014.01.038"
}

Banković-Ilić, I. B., Stojković, I., Stamenković, O. S., Veljković, V. B.,& Hung, Y.. (2014). Waste animal fats as feedstocks for biodiesel production. in Renewable & Sustainable Energy Reviews
Pergamon-Elsevier Science Ltd, Oxford., 32, 238-254.
https://doi.org/10.1016/j.rser.2014.01.038

Banković-Ilić IB, Stojković I, Stamenković OS, Veljković VB, Hung Y. Waste animal fats as feedstocks for biodiesel production. in Renewable & Sustainable Energy Reviews. 2014;32:238-254.
doi:10.1016/j.rser.2014.01.038 .

Banković-Ilić, Ivana B., Stojković, Ivan, Stamenković, Olivera S., Veljković, Vlada B., Hung, Yung-Tse, "Waste animal fats as feedstocks for biodiesel production" in Renewable & Sustainable Energy Reviews, 32 (2014):238-254,
https://doi.org/10.1016/j.rser.2014.01.038 . .

TY  - JOUR
AU  - Banković-Ilić, Ivana B.
AU  - Lazić, Miodrag
AU  - Veljković, Vlada B.
AU  - Mojović, Ljiljana
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1193
AB  - Processes of bioethanol production from sugars, starch or cellulose produce enormous amounts of stillage (about 20 dm3 per dm3 ethanol), as a by-product. Chemically, stillage is an aqueous solution of different products obtained by alcoholic fermentation. Stillage has a high chemical oxygen demand (higher than 100 g/dm3) and is considered to be a potentially dangerous pollutant of the environment. For the processes of bioethanol production called "healthy energy", treatment and use of stillage is of great importance. This work reviews treatment processes by which stillage is converted into valuable products or feedstocks. The special attention is paid to the treatment processes which enable reuse of stillage. .
AB  - U postupku dobijanja bioetanola iz šećernih, skrobnih ili celuloznih sirovina nastaje, kao sporedni proizvod, velika količina džibre (oko 20 dm3 po dm3 etanola). Po sastavu, džibra je vodeni rastvor ostataka nakon destilacije fermentacione komine. Džibra ima veliku vrednost hemijske potrošnje kiseonika (veću od 100 g/dm3) i predstavlja potencijalno opasnog zagađivača životne sredine. Za proizvodnju etanola u procesima za dobijanje "zdrave energije" od značaja je tretman i upotreba džibre. U ovom radu je dat pregled postupaka obrade džibre u cilju njenog iskorišćenja i prevođenja u vredne proizvode ili kao sirovina za različite procese. Posebna pažnja je posvećena tehnološkim postupcima kojima se džibra vraća u proces. .
PB  - Univerzitet u Nišu - Tehnološki fakultet, Leskovac
T2  - Zbornik radova Tehnološkog fakulteta, Leskovac
T1  - Stillage as by-product of alcoholic fermentation
T1  - Džibra - sekundarni proizvod alkoholne fermentacije
EP  - 107
IS  - 16
SP  - 100
UR  - https://hdl.handle.net/21.15107/rcub_technorep_1193
ER  - 

@article{
author = "Banković-Ilić, Ivana B. and Lazić, Miodrag and Veljković, Vlada B. and Mojović, Ljiljana",
year = "2007",
abstract = "Processes of bioethanol production from sugars, starch or cellulose produce enormous amounts of stillage (about 20 dm3 per dm3 ethanol), as a by-product. Chemically, stillage is an aqueous solution of different products obtained by alcoholic fermentation. Stillage has a high chemical oxygen demand (higher than 100 g/dm3) and is considered to be a potentially dangerous pollutant of the environment. For the processes of bioethanol production called "healthy energy", treatment and use of stillage is of great importance. This work reviews treatment processes by which stillage is converted into valuable products or feedstocks. The special attention is paid to the treatment processes which enable reuse of stillage. ., U postupku dobijanja bioetanola iz šećernih, skrobnih ili celuloznih sirovina nastaje, kao sporedni proizvod, velika količina džibre (oko 20 dm3 po dm3 etanola). Po sastavu, džibra je vodeni rastvor ostataka nakon destilacije fermentacione komine. Džibra ima veliku vrednost hemijske potrošnje kiseonika (veću od 100 g/dm3) i predstavlja potencijalno opasnog zagađivača životne sredine. Za proizvodnju etanola u procesima za dobijanje "zdrave energije" od značaja je tretman i upotreba džibre. U ovom radu je dat pregled postupaka obrade džibre u cilju njenog iskorišćenja i prevođenja u vredne proizvode ili kao sirovina za različite procese. Posebna pažnja je posvećena tehnološkim postupcima kojima se džibra vraća u proces. .",
publisher = "Univerzitet u Nišu - Tehnološki fakultet, Leskovac",
journal = "Zbornik radova Tehnološkog fakulteta, Leskovac",
title = "Stillage as by-product of alcoholic fermentation, Džibra - sekundarni proizvod alkoholne fermentacije",
pages = "107-100",
number = "16",
url = "https://hdl.handle.net/21.15107/rcub_technorep_1193"
}

Banković-Ilić, I. B., Lazić, M., Veljković, V. B.,& Mojović, L.. (2007). Stillage as by-product of alcoholic fermentation. in Zbornik radova Tehnološkog fakulteta, Leskovac
Univerzitet u Nišu - Tehnološki fakultet, Leskovac.(16), 100-107.
https://hdl.handle.net/21.15107/rcub_technorep_1193

Banković-Ilić IB, Lazić M, Veljković VB, Mojović L. Stillage as by-product of alcoholic fermentation. in Zbornik radova Tehnološkog fakulteta, Leskovac. 2007;(16):100-107.
https://hdl.handle.net/21.15107/rcub_technorep_1193 .

Banković-Ilić, Ivana B., Lazić, Miodrag, Veljković, Vlada B., Mojović, Ljiljana, "Stillage as by-product of alcoholic fermentation" in Zbornik radova Tehnološkog fakulteta, Leskovac, no. 16 (2007):100-107,
https://hdl.handle.net/21.15107/rcub_technorep_1193 .

TY  - JOUR
AU  - Tasić, Marija B.
AU  - Banković-Ilić, Ivana B.
AU  - Lazić, Miodrag L.
AU  - Veljković, Vlada B.
AU  - Mojović, Ljiljana
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/963
AB  - Processes of bioethanol production currently applied all over the world are reviewed in this paper. Attention is focused on potentially cheap biomass sources, as well as the most important operating factors controlling the progress and result of saccharification and fermentation reactions and affecting the yield of fermentable sugars and ethanol, respectively, such as: the type and concentration of acid, the type of enzyme, the type of working microorganism, operating temperature, duration time and pH. The hydrolysis conditions, namely duration time, temperature and sulfuric acid concentration, were combined in a single parameter, known as the "combined severity" (CS), in order to estimate the efficiency of bioethanol production from biomass. When the CS increases, the yield of fermentable sugars also increases. The decrease in the yield of monosaccharides coincides with the maximum concentrations of by-products, such as furfural and 5-hydroxymethylfurfural, which are well-known as yeast inhibitors. The highest ethanol yields has been obtained using the yeast Saccharomyces cerevisiae. With low oil prices and political reluctance to implement carbon taxes, fuel-ethanol production will remain uncompetitive unless some other form of cost reduction can be made, such as feedstock preparation costs.
AB  - U ovom radu razmotreni su procesi dobijanja etanola iz biomase. Naglasak je stavljen na polazne sirovine, značajne faktore koji kontrolišu tok i efekte reakcija ošećerenja i fermentacije i utiču na prinos fermentabilnih šećera i etanola, respektivno, kao što su: vrste i koncentracije kiselina, vrste enzima, vrsta proizvodnog mikroorganizma, temperatura, pH i vreme trajanja reakcije. Radi sagledavanja perspektive industrijske proizvodnje bioetanola ocenjena je ekonomičnost celokupnog postupka proizvodnje bioetanola iz biomase.
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Bioethanol: State and perspectives
T1  - Bioetanol - stanje i perspektive
EP  - 9
IS  - 1-2
SP  - 1
VL  - 60
DO  - 10.2298/HEMIND0602001T
ER  - 

@article{
author = "Tasić, Marija B. and Banković-Ilić, Ivana B. and Lazić, Miodrag L. and Veljković, Vlada B. and Mojović, Ljiljana",
year = "2006",
abstract = "Processes of bioethanol production currently applied all over the world are reviewed in this paper. Attention is focused on potentially cheap biomass sources, as well as the most important operating factors controlling the progress and result of saccharification and fermentation reactions and affecting the yield of fermentable sugars and ethanol, respectively, such as: the type and concentration of acid, the type of enzyme, the type of working microorganism, operating temperature, duration time and pH. The hydrolysis conditions, namely duration time, temperature and sulfuric acid concentration, were combined in a single parameter, known as the "combined severity" (CS), in order to estimate the efficiency of bioethanol production from biomass. When the CS increases, the yield of fermentable sugars also increases. The decrease in the yield of monosaccharides coincides with the maximum concentrations of by-products, such as furfural and 5-hydroxymethylfurfural, which are well-known as yeast inhibitors. The highest ethanol yields has been obtained using the yeast Saccharomyces cerevisiae. With low oil prices and political reluctance to implement carbon taxes, fuel-ethanol production will remain uncompetitive unless some other form of cost reduction can be made, such as feedstock preparation costs., U ovom radu razmotreni su procesi dobijanja etanola iz biomase. Naglasak je stavljen na polazne sirovine, značajne faktore koji kontrolišu tok i efekte reakcija ošećerenja i fermentacije i utiču na prinos fermentabilnih šećera i etanola, respektivno, kao što su: vrste i koncentracije kiselina, vrste enzima, vrsta proizvodnog mikroorganizma, temperatura, pH i vreme trajanja reakcije. Radi sagledavanja perspektive industrijske proizvodnje bioetanola ocenjena je ekonomičnost celokupnog postupka proizvodnje bioetanola iz biomase.",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Bioethanol: State and perspectives, Bioetanol - stanje i perspektive",
pages = "9-1",
number = "1-2",
volume = "60",
doi = "10.2298/HEMIND0602001T"
}

Tasić, M. B., Banković-Ilić, I. B., Lazić, M. L., Veljković, V. B.,& Mojović, L.. (2006). Bioethanol: State and perspectives. in Hemijska industrija
Association of Chemical Engineers of Serbia., 60(1-2), 1-9.
https://doi.org/10.2298/HEMIND0602001T

Tasić MB, Banković-Ilić IB, Lazić ML, Veljković VB, Mojović L. Bioethanol: State and perspectives. in Hemijska industrija. 2006;60(1-2):1-9.
doi:10.2298/HEMIND0602001T .

Tasić, Marija B., Banković-Ilić, Ivana B., Lazić, Miodrag L., Veljković, Vlada B., Mojović, Ljiljana, "Bioethanol: State and perspectives" in Hemijska industrija, 60, no. 1-2 (2006):1-9,
https://doi.org/10.2298/HEMIND0602001T . .

TY  - JOUR
AU  - Aleksić, M.
AU  - Veljković, V.B.
AU  - Banković-Ilić, Ivana
AU  - Lazić, M.L.
AU  - Skala, Dejan
PY  - 2002
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5385
AB  - The gas holdup is studies in a gassed reciprocating plate column with the addition of the Rashig rings placed in each interplate space. The gas holdup generally increases with increasing the vibration speed, the superficial gas velocity, and the solids concentration in the range of operating conditions applied. Independently of the solids concentration, the gas holdup is correlated with the power consumption and the superficial gas velocity. The Rashig rings are shown to have more effective dispersion action than the polypropylene spheres under the same other operating conditions.
PB  - Canadian Society for Chemical Engineering
T2  - Canadian Journal of Chemical Engineering
T1  - Gas holdup in a gassed reciprocating plate column with Rashig rings placed in interplate spaces
EP  - 490
IS  - 3
SP  - 485
VL  - 80
DO  - 10.1002/cjce.5450800318
ER  - 

@article{
author = "Aleksić, M. and Veljković, V.B. and Banković-Ilić, Ivana and Lazić, M.L. and Skala, Dejan",
year = "2002",
abstract = "The gas holdup is studies in a gassed reciprocating plate column with the addition of the Rashig rings placed in each interplate space. The gas holdup generally increases with increasing the vibration speed, the superficial gas velocity, and the solids concentration in the range of operating conditions applied. Independently of the solids concentration, the gas holdup is correlated with the power consumption and the superficial gas velocity. The Rashig rings are shown to have more effective dispersion action than the polypropylene spheres under the same other operating conditions.",
publisher = "Canadian Society for Chemical Engineering",
journal = "Canadian Journal of Chemical Engineering",
title = "Gas holdup in a gassed reciprocating plate column with Rashig rings placed in interplate spaces",
pages = "490-485",
number = "3",
volume = "80",
doi = "10.1002/cjce.5450800318"
}

Aleksić, M., Veljković, V.B., Banković-Ilić, I., Lazić, M.L.,& Skala, D.. (2002). Gas holdup in a gassed reciprocating plate column with Rashig rings placed in interplate spaces. in Canadian Journal of Chemical Engineering
Canadian Society for Chemical Engineering., 80(3), 485-490.
https://doi.org/10.1002/cjce.5450800318

Aleksić M, Veljković V, Banković-Ilić I, Lazić M, Skala D. Gas holdup in a gassed reciprocating plate column with Rashig rings placed in interplate spaces. in Canadian Journal of Chemical Engineering. 2002;80(3):485-490.
doi:10.1002/cjce.5450800318 .

Aleksić, M., Veljković, V.B., Banković-Ilić, Ivana, Lazić, M.L., Skala, Dejan, "Gas holdup in a gassed reciprocating plate column with Rashig rings placed in interplate spaces" in Canadian Journal of Chemical Engineering, 80, no. 3 (2002):485-490,
https://doi.org/10.1002/cjce.5450800318 . .