Intrinsic kinetics of catalytic hydrogenation of 2-nitro-4-acetylamino anisole to 2-amino-4-acetylamino anisole over Raney nickel catalyst

Xiangyang Cui; Xin Zhang; Baoju Wang; Yuqi Sun; Haikui Zou; Guangwen Chu; Yong Luo; Jianfeng Chen

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Intrinsic kinetics of catalytic hydrogenation of 2-nitro-4-acetylamino anisole to 2-amino-4-acetylamino anisole over Raney nickel catalyst

Full Length Article | Updated：2026-01-06

- Intrinsic kinetics of catalytic hydrogenation of 2-nitro-4-acetylamino anisole to 2-amino-4-acetylamino anisole over Raney nickel catalyst
- Chinese Journal of Chemical Engineering Vol. 64, Issue 12, Pages: 1-8(2023)
- Affiliations：
  
  1. State Key Laboratory of Organic-Inorganic Composites, Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology,Beijing,China,100029
  2. School of Chemistry and Chemical Engineering, Shandong University of Technology,Zibo,China,255000
- Author bio：
- Funds：
- DOI：
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- Published：2023
- Accepted：
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Xiangyang Cui, Xin Zhang, Baoju Wang, Yuqi Sun, Haikui Zou, Guangwen Chu, Yong Luo, Jianfeng Chen. Intrinsic kinetics of catalytic hydrogenation of 2-nitro-4-acetylamino anisole to 2-amino-4-acetylamino anisole over Raney nickel catalyst[J]. Chinese Journal of Chemical Engineering, 2023, 64(12): 1-8.
DOI：

Xiangyang Cui, Xin Zhang, Baoju Wang, Yuqi Sun, Haikui Zou, Guangwen Chu, Yong Luo, Jianfeng Chen. Intrinsic kinetics of catalytic hydrogenation of 2-nitro-4-acetylamino anisole to 2-amino-4-acetylamino anisole over Raney nickel catalyst[J]. Chinese Journal of Chemical Engineering, 2023, 64(12): 1-8. DOI：

摘要

Abstract

The catalytic hydrogenation of 2-nitro-4-acetylamino anisole (NMA) is a less-polluting and efficient method to produce 2-amino-4-acetamino anisole (AMA). However

the kinetics of catalytic hydrogenation of NMA to AMA remains obscure. In this work

the kinetic models including power-law model and Langmuir-Hinshelwood-Hougen-Watson (LHHW) model of NMA hydrogenation to AMA catalyzed by Raney nickel catalyst were investigated. All experiments were carried out under the elimination of mass transfer resistance within the temperature range of 70–100 ℃ and the hydrogen pressure of 0.8–1.5 MPa. The reaction was found to follow 0.52-order kinetics with respect to the NMA concentration and 1.10-order kinetics in terms of hydrogen pressure. Based on the LHHW model

the dual-site dissociation adsorption of hydrogen was analyzed to be the rate determining step. The research of intrinsic kinetics of NMA to AMA provides the guidance for the reactor design and inspires the catalyst modification.

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