Anti-Coke Properties of Acid-Treated Bentonite-Supported Nickel-Boron Catalyst
Anti-Coke Properties of Acid-Treated Bentonite-Supported Nickel-Boron Catalyst
复制标题
酸处理膨润土负载镍硼催化剂的抗焦性能
DOI：
10.1002/ceat.201600723
复制
发表时间：
2018
影响因子：
2.1
通讯作者：
Hongbing Ji
中科院分区：
文献类型：
--
作者：
Yuexiu Jiang;Tongxia Huang;Yun Xu;Xiliang Li;Zuzeng Qin;Hongbing Ji
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.
