Selective hydrogenation of benzoic acid to cyclohexane carboxylic acid over microwave-activated Ni/carbon catalysts

被引：22

作者：

Lu, X. H. ^{[1
,2
,3
]}

Shen, Y. ^{[1
,2
,3
]}

He, J. ^{[1
,3
]}

Jing, R. ^{[1
,3
]}

Tao, P. P. ^{[1
,3
]}

Hu, A. ^{[1
,3
]}

Nie, R. F. ^{[1
,3
]}

Zhou, D. ^{[1
,3
]}

Xia, Q. H. ^{[1
,3
]}

机构：

[1] Hubei Univ, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Wuhan 430062, Hubei, Peoples R China

[2] Huanggang Normal Univ, Hubei Key Lab Proc & Applicat Catalyt Mat, Huanggang 438000, Peoples R China

[3] Hubei Univ, Key Lab Synth & Applicat Organ Funct Mol, Minist Educ, Wuhan 430062, Hubei, Peoples R China

来源：

MOLECULAR CATALYSIS | 2018年 / 444卷

基金：

中国国家自然科学基金;

关键词：

Selective hydrogenation; Benzoic acid; Cyclohexane carboxylic acids; Ni/carbon catalysts; ONE-STEP HYDROGENATION; NI CATALYSTS; NICKEL; CARBON; DEPOSITION; REDUCTION; SILICA; OXIDE; CEO2; XPS;

D O I：

10.1016/j.mcat.2017.10.015

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High yields of cyclohexane carboxylic acids were obtained by direct hydrogenation of aromatic carboxylic acids over different Ni/carbon catalysts having distinctive surface properties. The catalysts were characterized by SEM, TEM, H-2-TPR and N-2 adsorption isotherms for the determination of BET surface area and porosity. The hydrogenation reaction was carried out in batch pressure reactor in gas-liquid phase at 200 degrees C. High selectivity (100%) of cyclohexane carboxylic acids at 86.2 mol% conversion of benzoic acid was achieved over microwave-activated biochar supported non-precious metal Ni catalyst. The 10%Ni/CSC-b catalyst has been investigated for hydrogenation of benzoic acid to cyclohexane carboxylic acids and shown little deactivation in stability test. The effects of Ni loading, high dispersion of Ni species, appropriate power of microwave heating and strong interaction of Ni species with carbon are of benefit to the reaction. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：53 / 61

页数：9

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