Simultaneous operation of dibenzothiophene hydrodesulfurization and methanol reforming reactions over Pd promoted alumina based catalysts

Muhammad Yaseen; Muhammad Shakirullah; Imtiaz Ahmad; Ata Ur Rahman; Faiz Ur Rahman; Muhammad Usman; Rauf Razzaq

Simultaneous operation of dibenzothiophene hydrodesulfurization and methanol reforming reactions over Pd promoted alumina based catalysts

1.
Institute of Chemical Sciences, University of Peshawar, Khyberpukhtunkhwa, Pakistan;
2.
State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

基金项目: Fundamental Research Foundation of Sinopec (X505015)。

详细信息

通讯作者:
Muhammad Yaseen, Tel: +92-91-9216652, Fax: +92-91-9216652, E-mail: myyousafzai@gmail.com。

中图分类号: O643
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出版历程
- 收稿日期: 2011-12-20
- 修回日期: 2012-04-28
- 刊出日期: 2012-06-30

Simultaneous operation of dibenzothiophene hydrodesulfurization and methanol reforming reactions over Pd promoted alumina based catalysts

1.
Institute of Chemical Sciences, University of Peshawar, Khyberpukhtunkhwa, Pakistan;
2.
State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

摘要

摘要: In the current study simultaneous reactions of hydrodesulfurization (HDS) of dibenzothiophene (DBT) and reforming of methanol in a micro-autoclave reactor were studied over bi-metallic (Co-Mo/Al₂O₃ and Ni-Mo/Al₂O₃) and tri-metallic (Pd-Co-Mo/Al₂O₃ and Pd-Ni-Mo/Al₂O₃) catalyst systems which were prepared by incipient impregnation method. In situ hydrogen utilization and low Pd loadings were the major targets of this study. For comparison purpose, catalytic activity was separately determined for both the methanol reforming and HDS of DBT reactions as well. Ni based catalysts were confirmed with better activity than Co ones for both the reactions with Pd promoted ones ranking at the top i.e. Pd-Ni-Mo/Al₂O₃ > Ni-Mo/Al₂O₃ > Pd-Co-Mo/Al₂O₃ > Co-Mo/Al₂O₃ where Pd-Ni-Mo/Al₂O₃showed 91% DBT conversion at 380 ℃ and 12 h reaction time. Some of the selected organic additives on catalytic activity were tested for their effect toward HDS reaction which was unique with close relation to their chemical nature. Reaction products were quantitatively and qualitatively analyzed via HPLC and GC-MS techniques respectively which helped in elucidating reaction mechanism.
- in situ hydrodesulfurization of DBT /
- methanol reforming /
- Pd promoted alumina based catalyst /
- organic additive
Abstract: In the current study simultaneous reactions of hydrodesulfurization (HDS) of dibenzothiophene (DBT) and reforming of methanol in a micro-autoclave reactor were studied over bi-metallic (Co-Mo/Al₂O₃ and Ni-Mo/Al₂O₃) and tri-metallic (Pd-Co-Mo/Al₂O₃ and Pd-Ni-Mo/Al₂O₃) catalyst systems which were prepared by incipient impregnation method. In situ hydrogen utilization and low Pd loadings were the major targets of this study. For comparison purpose, catalytic activity was separately determined for both the methanol reforming and HDS of DBT reactions as well. Ni based catalysts were confirmed with better activity than Co ones for both the reactions with Pd promoted ones ranking at the top i.e. Pd-Ni-Mo/Al₂O₃ > Ni-Mo/Al₂O₃ > Pd-Co-Mo/Al₂O₃ > Co-Mo/Al₂O₃ where Pd-Ni-Mo/Al₂O₃showed 91% DBT conversion at 380 ℃ and 12 h reaction time. Some of the selected organic additives on catalytic activity were tested for their effect toward HDS reaction which was unique with close relation to their chemical nature. Reaction products were quantitatively and qualitatively analyzed via HPLC and GC-MS techniques respectively which helped in elucidating reaction mechanism.
- in situ hydrodesulfurization of DBT /
- methanol reforming /
- Pd promoted alumina based catalyst /
- organic additive

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参考文献(43)

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Simultaneous operation of dibenzothiophene hydrodesulfurization and methanol reforming reactions over Pd promoted alumina based catalysts

通讯作者:
Muhammad Yaseen, Tel: +92-91-9216652, Fax: +92-91-9216652, E-mail: myyousafzai@gmail.com。

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Simultaneous operation of dibenzothiophene hydrodesulfurization and methanol reforming reactions over Pd promoted alumina based catalysts

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Simultaneous operation of dibenzothiophene hydrodesulfurization and methanol reforming reactions over Pd promoted alumina based catalysts

通讯作者: Muhammad Yaseen, Tel: +92-91-9216652, Fax: +92-91-9216652, E-mail: myyousafzai@gmail.com。

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出版历程

Simultaneous operation of dibenzothiophene hydrodesulfurization and methanol reforming reactions over Pd promoted alumina based catalysts

计量

出版历程

目录

2023年《燃料化学学报（中英文）》评优结果公布！

通讯作者:
Muhammad Yaseen, Tel: +92-91-9216652, Fax: +92-91-9216652, E-mail: myyousafzai@gmail.com。