کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6657000 | 461675 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multifunctional and highly active Ni/microfiber attapulgite for catalytic hydroconversion of model compounds and coal tars
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
A highly dispersive nickel catalyst supported on microfiber attapulgite (MFA) was prepared. Benzene, naphthalene, triphenylmethane, 9-phenylanthracene, 1-methoxynaphthalene (MON), benzyloxybenzene, and oxybis(methylene)dibenzene were used as coal-related model compounds (CRMCs) to evaluate the catalytic activity. A conventional Ni/MFA (Ni/MFA-C) was prepared by an impregnation method. Ni/MFA is significantly active for catalytic hydroconversion of the CRMCs than Ni/MFA-C. Ni/MFA-catalyzed hydroconversions of industrial low-temperature coal tar (LTCT) and high-temperature coal tar (HTCT) were also investigated. The results show that the Car-O bond in MON was specifically cleaved over Ni/MFA followed by catalytic hydrogenation of the resulting naphthalene to afford tetralin. Both unsaturated hydrocarbons and heteroatom-containing organic compounds in the LTCT and HTCT were completely hydroconverted to alkanes over Ni/MFA under optimum conditions, indicating that Ni/MFA catalyzes both hydrocracking and hydrogenation. According to multiple analyses, nickel nanoparticles were formed on the surface of MFA in Ni/MFA.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 134, June 2015, Pages 39-45
Journal: Fuel Processing Technology - Volume 134, June 2015, Pages 39-45
نویسندگان
Xiang Li, Zhi-Min Zong, Wei-Wei Ma, Jing-Pei Cao, Mohannad Mayyas, Zhe-Hao Wei, Yan Li, Hong-Lei Yan, Dong Wang, Rui Yang, Xian-Yong Wei,