Ultra-deep oxidative desulfurization of fuel with H₂O₂ catalyzed by phosphomolybdic acid supported on silica

详细信息    查看全文

• 作者：Yongsheng Tian^a ; Guanghui Wang^a ; ; Juan Long^a ; ^b ; Jiawei Cui^a ; Wei Jin^a ; Danlin Zeng^a ; ^{wghwang@263.net}
• 关键词：Mesoporous silica ; Phosphomolybdic acid ; Oxidative desulfurization ; Benzothiophene ; Dibenzothiophene
• 刊名：Chinese Journal of Catalysis
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：37
• 期：12
• 页码：2098-2105
• 全文大小：633 K
• 卷排序：37

文摘

A highly active catalyst of phosphomolybdic acid (HPMo) was prepared and applied in the catalytic oxidative desulfurization (CODS) system. The catalyst was characterized by FT-IR, XRD, XPS and superconducting NMR. The influences of m(catalyst)/m(oil), V(H2O2)/V(oil), reaction temperature and reaction time on the fractional conversion of benzothiophene (BT) and dibenzothiophene (DBT) were investigated. GC-MS and micro-coulometric methods were employed to investigate the reaction. The catalyst has high desulfurization activity in the removal of BT and DBT under mild conditions. The recycling experiments indicated that DBT and BT removal could still reach 95.2% and 95.7% after 10 cycles.