Приказ основних података о документу
Desulphurisation of dibenzothiophene and 4,6 – dimethyl dibenzothio-phene via enhanced hydrogenation reaction route using RePd–TiO2/SiO2 aerogel catalysts: Kinetic parameters estimation and modelling
Desulfurizacija dibenzotiofena i 4,6 – dimetildibenzotiofena procesom hidrogenovanja uz korišćenje RePd–TiO2/SiO2 aerogel katalizatora: proračun kinetičkih parametara i simulacijaprocesa
dc.creator | Prokić-Vidojević, Dragana | |
dc.creator | Glišić, Sandra B. | |
dc.creator | Pešić, Radojica | |
dc.creator | Orlović, Aleksandar M. | |
dc.date.accessioned | 2022-09-08T11:03:22Z | |
dc.date.available | 2022-09-08T11:03:22Z | |
dc.date.issued | 2022 | |
dc.identifier.issn | 0367-598X | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5184 | |
dc.description.abstract | Re/Pd-TiO2/SiO2 aerogel catalysts were synthesized by using a sol-gel method and supercritical drying in excess solvent and investigated in the reaction of hydrodesulphurisation (HDS) of dibenzothiophene (DBT) and 4,6-dimethyl dibenzothiophene (4,6-DMDBT). Both Re/Pd catalysts, obtained with and without the use of mesitylene in the synthesis step, have shown increased conversions of up to 70 % in the desulphurization of 4,6-DMDBT, when compared to conventional Co/Mo hydroprocessing catalysts. This observation is of importance for conversion of highly refractory 4,6-DMDBT and hydroprocessing to produce ultra-low sulphur diesel fuels, ULSD. In order to quantify the extent of desulphurisation, which proceeds via a hydrogenation route, conversions of DBT and 4,6-DMDBT along with evolution of reaction products characteristic for the direct desulphurisation route and the hydrogenation route were monitored by using a gas chromatography–mass spectrometry (GC-MS) analytical technique. The reaction was performed at 630 K and 6 MPa in a batch catalytic reactor. The experimental results were used in the Hougen-Watson kinetic model describing DBT and 4,6-DMDBT desulphurisation on σ and τ active sites. Kinetic parameters of this complex catalytic kinetics were determined by using a Genetic Algorithm method and minimum deviation function. Values of calculated kinetic parameters and values of the ratio of 3-methylcyclohexyltoluene (MCHT and dimethyl biphenyl (DMBPH) expressed as the MCHT/(MCHT+DMBPH) ratio ranging between 0.66 and 0.94, have confirmed that the hydrogenation route is the dominant route for desulphurisation of 4,6-DMDBT. | sr |
dc.language.iso | en | sr |
dc.publisher | Association of the Chemical Engineers of Serbia | sr |
dc.relation | info:eu-repo/grantAgreement/MESTD/inst-2020/200135/RS// | sr |
dc.rights | openAccess | sr |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Hemijska industrija | sr |
dc.subject | 4,6-DMDBT | sr |
dc.subject | Aerogel hydrodesulphurisation catalysts | sr |
dc.subject | Hougen-Watson kinetic model | sr |
dc.subject | hydrodesulphurisation | sr |
dc.subject | kinetic and adsorption parameters | sr |
dc.title | Desulphurisation of dibenzothiophene and 4,6 – dimethyl dibenzothio-phene via enhanced hydrogenation reaction route using RePd–TiO2/SiO2 aerogel catalysts: Kinetic parameters estimation and modelling | sr |
dc.title | Desulfurizacija dibenzotiofena i 4,6 – dimetildibenzotiofena procesom hidrogenovanja uz korišćenje RePd–TiO2/SiO2 aerogel katalizatora: proračun kinetičkih parametara i simulacijaprocesa | sr |
dc.type | article | sr |
dc.rights.license | BY | sr |
dc.citation.epage | 145 | |
dc.citation.issue | 3 | |
dc.citation.rank | M23~ | |
dc.citation.spage | 135 | |
dc.citation.volume | 76 | |
dc.identifier.doi | 10.2298/HEMIND220114008P | |
dc.identifier.fulltext | http://TechnoRep.tmf.bg.ac.rs/bitstream/id/12767/bitstream_12767.pdf | |
dc.identifier.scopus | 2-s2.0-85134361771 | |
dc.type.version | publishedVersion | sr |