首页|面向工业气源中COS水解转化的催化剂研究进展

面向工业气源中COS水解转化的催化剂研究进展

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综述了 COS水解催化剂载体与活性组分对其催化性能的调控作用、水解机理以及工业气氛中影响催化剂催化活性因素的研究现状。研究发现:氧化铝基复合载体负载碱金属活性组分所制备的COS水解催化剂能更好的提高催化剂的活性与稳定性,COS水解反应具有明显的碱催化特征,工业气氛中的CO2与O2气氛浓度对水解催化剂的抗氧耐酸性能有较大的影响,单质硫的生成和/或催化剂表面的硫酸盐化是催化剂失活的主要原因。通过对催化剂失活因素分析,定向调控催化剂的组成与结构制备高活性及高抗氧耐酸性能的新型COS水解催化剂与基于工业气源及水解热力学动力学条件优选下的水解催化反应工艺参数相结合来延长催化剂的寿命是未来的发展趋势。
Research progress in catalysts for the hydrolysis and conversion of COS in industrial gas sources
This article reviews the regulatory effects of COS hydrolysis catalyst carriers and active compo-nents on their catalytic performance,hydrolysis mechanisms,and the research status of factors affecting catalyst catalytic activity in industrial atmospheres.It was found that the COS hydrolysis catalyst prepared by loading alkali metal active components on alumina based composite carriers can better improve the ac-tivity and stability of the catalyst.The COS hydrolysis reaction has obvious alkaline catalytic characteris-tics,and the concentration of CO2 and O2 in industrial atmosphere has a significant impact on the oxygen and acid resistance of the hydrolysis catalyst.The generation of elemental sulfur and/or the sulfation of the catalyst surface are the main reasons for catalyst deactivation.The development trend in the future is to prepare a new type of COS hydrolysis catalyst with high activity and high oxygen and acid resistance by analyzing the deactivation factors of the catalyst,and to extend the lifespan of the catalyst by combining it with the optimization of hydrolysis catalytic reaction process parameters based on industrial gas source and hydrolysis thermodynamic kinetic conditions.

carbonyl sulfur(COS)supported hydrolysis catalystaluminum oxide carrierhydrolysis mechanisminactivation mechanism

王晋斌、时培祥、赵彬、武蒙蒙、苗茂谦、吕永康、上官炬、秦志峰

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太原理工大学省部共建煤基能源清洁高效利用国家重点实验室,山西太原 030024

太原理工大学化学工程与技术学院,山西太原 030024

太原理工大学安全与应急管理工程学院,山西太原 030024

山西浙大新材料与化工研究院,山西太原 030000

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羰基硫(COS) 负载型水解催化剂 三氧化二铝载体 水解机理 失活机理

2018年度山西省优秀人才科技创新项目2016年度山西省科技重大专项山西浙大新材料与化工研究院研发项目东莞市能源投资集团有限公司攻关项目

201805D211037MJH2016-032021ST-AT-02RH2000004464

2024

应用化工
陕西省石油化工研究设计院 陕西省化工学会

应用化工

CSTPCD北大核心
影响因子:0.411
ISSN:1671-3206
年,卷(期):2024.53(2)
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