Reaction network and thermodynamic equilibrium for tetralin hydrocracking over NiMo/HY catalyst

CHEN Junsen; PENG Chong; FANG Xiangchen; ZHOU Zhiming

doi:10.11949/j.issn.0438-1157.20171034

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Reaction network and thermodynamic equilibrium for tetralin hydrocracking over NiMo/HY catalyst

更新时间：2025-12-10

- Reaction network and thermodynamic equilibrium for tetralin hydrocracking over NiMo/HY catalyst
- CIESC Journal Issue 2, Pages: 709-717(2018)
- 作者机构：
  
  1. 化学工程联合国家重点实验室, 华东理工大学,上海,200237
  2. 中国石油化工股份有限公司抚顺石油化工研究院,辽宁,抚顺,113001
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20171034
  CLC： Q032TQ013.1
- Online First：05 February 2018，
  
  Published：05 February 2018
- 稿件说明：
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CHEN Junsen, PENG Chong, FANG Xiangchen, et al. Reaction network and thermodynamic equilibrium for tetralin hydrocracking over NiMo/HY catalyst[J]. CIESC Journal, 2018, (2): 709-717.
DOI：

CHEN Junsen, PENG Chong, FANG Xiangchen, et al. Reaction network and thermodynamic equilibrium for tetralin hydrocracking over NiMo/HY catalyst[J]. CIESC Journal, 2018, (2): 709-717. DOI： 10.11949/j.issn.0438-1157.20171034.

摘要

采用固定床反应器对四氢萘在NiMo/HY工业催化剂上的加氢裂化反应过程进行了研究，考察了反应温度对产物分布的影响，提出了四氢萘加氢裂化反应网络。该网络包含加氢、异构、脱氢、开环、脱烷基等12个反应，通过热力学计算，得到了这些反应的平衡常数，并据此求得各类产物的平衡收率及其随温度、压力和氢气/四氢萘（摩尔比）的变化规律。由热力学平衡分析得到的产物收率随反应条件的变化规律与实验结果较为吻合，表明本文构建的反应网络可以较好地描述NiMo/HY催化剂上的四氢萘加氢裂化反应体系。

Abstract

Tetralin hydrocracking over a commercial catalyst NiMo/HY was carried out to study temperature effect on product distribution in a laboratory-scale fixed-bed reactor. Based on the experimental results

a reaction network for tetralin hydrocracking was proposed

which contained 12 reactions with different types such as hydrogenation

isomerization

dehydrogenation

ring opening and dealkylation. Thermodynamic equilibrium calculations provided equilibrium constants for all reactions in the network

equilibrium yields of different products as well as yield variations with temperature

pressure and molar ratio of H2 to tetralin. Thermodynamic calculation of product yield changes with operating conditions was generally in agreement with those of experiments

demonstrating that the reaction network depicted well for tetralin hydrocracking over NiMo/HY catalyst system.

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