自然科学版
陕西师范大学学报(自然科学版)
合成气定向催化转化科学与技术专题
CH4-CO2重整反应Ni基催化剂研究进展
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张婷婷, 刘忠贤, 朱卡克*, 周兴贵
(华东理工大学 化工学院,化学工程国家重点实验室,上海 200237)
朱卡克,男,教授,博士生导师,主要从事甲烷催化转化和分子筛催化等方面的研究。E-mail:kakezhu@ecust.edu.cn
摘要:
CH4-CO2重整反应可同时利用两种温室气体并将其转化成用途广泛的合成气,近而引起了人们广泛的研究兴趣。其中,Ni基催化剂因其具有高活性、低成本等优点而备受关注,但Ni基催化剂存在易积炭、易烧结等问题亟待解决,其中积炭问题较为突出。本文从CH4-CO2重整反应Ni基催化剂研究所涉及的反应热力学、催化反应机理、积炭形成机制、反应动力学等方面对重整反应近期的抗积炭策略进行了总结,概述了各类助剂对Ni基催化剂抗积炭稳定性的影响及研究现状,简述了该研究领域当今的发展瓶颈及今后发展趋势。
关键词:
甲烷;二氧化碳;合成气;镍基催化剂;抗积炭
收稿日期:
2018-10-20
中图分类号:
O643.36
文献标识码:
A
文章编号:
1672-4291(2019)01-0075-12
基金项目:
国家自然科学基金(U1162112,21576082);中央大学基础研究基金(WB222201718003);中国石化集团科学研究基金(415063)
Doi:
Progress in Ni-based catalysts for CH4-CO2 reforming reaction
ZHANG Tingting, LIU Zhongxian, ZHU Kake*,ZHOU Xinggui
(State Key Laboratory of Chemical Engineering, School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China)
Abstract:
CH4-CO2 reforming has attracted growing attention because it can efficiently utilize two greenhouse gases and convert them into valuable syngas with low H2/CO ratio. Ni based catalysts have been extensively investigated for their high activity and low cost, but they also suffer from coke deposition and sintering problems. In this paper, recent progresses in Ni-based reforming catalysts are summarized and analyzed taken into account reaction kinetics, reaction thermodynamics and formation mechanism of carbon deposition, with a particular emphasis over promoters and their roles. Finally, the bottleneck and future development trend of the titled reaction are briefly described.
KeyWords:
methane; carbon dioxide; synthesis gas; Ni-based catalyst; carbon resistance