HDS of dibenzothiophenes and hydrogenation of tetralin over a SiO2 supported Ni-Mo-S catalyst

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• 作者：Qiang Wei ; Jinwen Chen ; Chaojie Song…
• 关键词：hydrodesulphurization (HDS) ; hydrogenation ; dibenzothiophene (DBT) ; 4 ; 6 ; dimethyldibenzothiophene (4 ; 6 ; DMDBT) ; tetralin
• 刊名：Frontiers of Chemical Science and Engineering
• 出版年：2015
• 出版时间：September 2015
• 年：2015
• 卷：9
• 期：3
• 页码：336-348
• 全文大小：1,049 KB
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• 作者单位：Qiang Wei (1)
  Jinwen Chen (1)
  Chaojie Song (2)
  Guangchun Li (2)
  
  1. Natural Resources Canada, CanmetENERGY-Devon, One Oil Patch Drive, Devon, AB, T9G 1A8, Canada
  2. Energy, Mining & Environment, National Research Council Canada, 4250 westbrook Mall, Vancouver, BC, V6J 1W5, Canada
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Chinese Library of Science
  Industrial Chemistry and Chemical Engineering
  
• 出版者：Higher Education Press, co-published with Springer-Verlag GmbH
• ISSN：2095-0187

文摘

A one-step synthesized Ni-Mo-S catalyst supported on SiO₂ was prepared and used for hydrodesulphurization (HDS) of dibenzothiophene (DBT), and 4,6-dimethyl-dibenzothiophene (4,6-DMDBT), and for hydrogenation of tetralin. The catalyst showed relatively high HDS activity with complete conversion of DBT and 4,6-DMDBT at temperature of 280 °C and a constant pressure of 435 psi. The HDS conversions of DBTand 4,6-DMDBT increased with increasing temperature and pressure, and decreasing liquid hourly space velocity (LHSV). The HDS of DBT proceeded mostly through the direct desulphurization (DDS) pathway whereas that of 4,6-DMDBT occurred mainly through the hydrogenationdesulphurization (HYD) pathway. Although the catalyst showed up to 24% hydrogenation/dehydrogenation conversion of tetralin, it had low conversion and selectivity for ring opening and contraction due to the competitive adsorption of DBTand 4,6-DMDBT and insufficient acidic sites on the catalyst surface.