Seo, Myung-gi Lee, Dae-Won Lee, Kwan-Young Moon, Dong Ju 2024-01-20T07:32:29Z 2024-01-20T07:32:29Z 2021-09-05 2015-03-01 0016-2361 https://pubs.kist.re.kr/handle/201004/125675 In this study, a Pt-loaded mesoporous aluminosilicate (Pt/Al-SBA-15) was optimized as a catalyst for the hydrocracking of Fischer-Tropsch waxes, for which n-paraffin wax in the C21-34 range was used as a model reactant. Pt/Al-SBA-15 was more active than a Pt-loaded microporous zeolite (Pt/b-zeolite) in producing gasoline-range products from n-paraffin wax. Hydrocracking over Pt/Al-SBA-15 occurs via a bifunctional mechanism, the activity of which was correlated closely with the density (concentration) of strong acid sites and total exposed Pt surface area. The reaction was more noticeably promoted at the Bronsted acid sites, rather than at the Lewis acid sites, of Al-SBA-15. The highest gasoline yield (72.8%) was achieved with the catalyst comprised of 0.5 wt.% Pt and Al-SBA-15 with Si/Al molar ratio of 14.5. (C) 2014 Elsevier Ltd. All rights reserved. English ELSEVIER SCI LTD FISCHER-TROPSCH WAXES SOLID ACID CATALYSTS MIDDLE DISTILLATE HEAVY OIL HYDROISOMERIZATION SELECTIVITY ZIRCONIA SILICA CONVERSION REDUCTION Pt/Al-SBA-15 catalysts for hydrocracking of C-21-C-34 n-paraffin mixture into gasoline and diesel fractions Article 10.1016/j.fuel.2014.11.028 1 FUEL, v.143, pp.63 - 71 FUEL 143 63 71 scie scopus 000347688700009 2-s2.0-84913534926 Energy & Fuels Engineering, Chemical Energy & Fuels Engineering Article FISCHER-TROPSCH WAXES SOLID ACID CATALYSTS MIDDLE DISTILLATE HEAVY OIL HYDROISOMERIZATION SELECTIVITY ZIRCONIA SILICA CONVERSION REDUCTION Fischer-Tropsch wax Hydrocracking Bifunctional mechanism Pt/Al-SBA-15 Mesoporous aluminosilicate