Anti-Coke Properties of Acid-Treated Bentonite-Supported Nickel-Boron Catalyst

被引：8

作者：

Jiang, Yuexiu ^{[1
]}

Huang, Tongxia ^{[1
]}

Xu, Yun ^{[1
]}

Li, Xiliang ^{[1
]}

Qin, Zuzeng ^{[1
]}

Ji, Hongbing ^{[1
,2
]}

机构：

[1] Guangxi Univ, Sch Chem & Chem Engn, Guangxi Key Lab Petrochem Resource Proc & Proc, 100 Daxue Rd, Nanning 530004, Peoples R China

[2] Sun Yat Sen Univ, Sch Chem & Chem Engn, Dept Chem Engn, 135 Xingang Xi Rd, Guangzhou 510275, Guangdong, Peoples R China

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2018年 / 41卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Aniline; Carbon deposition; Hydrogenation; Ni-B; acid-treated bentonite; Nitrobenzene; NI-BASED CATALYSTS; CARBON DEPOSITION; CHEMOSELECTIVE HYDROGENATION; STEAM; METHANE; NITROBENZENE; RESISTANCE; PERFORMANCE; MECHANISM; GAS;

D O I：

10.1002/ceat.201600723

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Boron was introduced into nickel/acid-treated bentonite (Ni/A-Bn) catalysts to improve the anti-coking ability of the nickel-based catalyst in the hydrogenation of nitrobenzene. The results showed the B-doped Ni/A-Bn catalyst was more active than that without B. During an extended reaction period, Ni-B/acid-treated bentonite (Ni-B/A-Bn) resulted in a high nitrobenzene conversion and a high aniline selectivity. The lifetime of Ni-B/A-Bn was extended significantly compared with that of Ni/A-Bn. The addition of B into Ni/A-Bn decreased the NiO particle size, improved the dispersion of active components, and decreased carbon deposition. The combination of B and Ni prevented coke deposition on metallic Ni during nitrobenzene hydrogenation, which reduced carbon deposition on the surface of Ni-B/A-Bn.

引用

页码：175 / 181

页数：7

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