甲硫醇催化分解的典型活性中心研究进展  

Typical active centers for catalytic decomposition of methyl mercaptan

作　　者：曹小华 罗永明[1,2,3] 赵雨桐 田睿[1,2,3] 张文君 陆继长 CAO Xiaohua;LUO Yongming;ZHAO Yutong;TIAN Rui;ZHANG Wenjun;LU Jichang(Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming 650500,China;The Innovation Team for Volatile Organic Compounds Pollutants Control and Resource Utilization of Yunnan Province,Kunming University of Science and Technology,Kunming 650500,China;The Higher Educational Key Laboratory for Odorous Volatile Organic Compounds Pollutants Control of Yunnan Province,Kunming 650500,China)

机构地区：[1]昆明理工大学环境科学与工程学院,云南昆明650500 [2]昆明理工大学挥发性有机物污染防治与资源化省创新团队,云南昆明650500 [3]云南省高校恶臭挥发性有机物控制重点实验室,云南昆明650500

出　　处：《能源环境保护》2022年第1期1-10,共10页Energy Environmental Protection

基　　金：国家自然科学基金项目(42030712,21966018,21667016);云南省教育厅科学研究基金项目(2020J0060);昆明理工大学高层次人才引进项目。

摘　　要：本文介绍了催化分解法去除含硫挥发性有机物甲硫醇的研究现状,分析了活性中心及反应/失活机理。基于XPS、H_(2)-TPR等系列表征技术手段,认为活性氧、氧化还原位点和酸碱位点为催化分解甲硫醇的主要活性中心。为解决催化剂中毒问题,建议将催化剂硫中毒转化为碳中毒问题,通过添加不同金属助剂和替换载体来调控活性中心。The current research status of the removal of methyl mercaptan,which is a kind of sulfur-containing volatile organic compound,was introduced in this paper.The active centers and corresponding reaction/deactivation mechanisms were analyzed.Based on a series of characterization techniques such as XPS and H_(2)-TPR,reactive oxygen species,redox sites and acid-basic sites were considered as the main active centers for catalytic decomposition of methyl mercaptan.To solve the catalyst poisoning problem,it is suggested to convert the catalyst sulfur poisoning into coke poisoning,and then solve the coke poisoning by adding different metal additives and replacement carriers to regulate the active centers.

关 键 词：甲硫醇 催化分解 活性中心 失活机理 调控方式 

分 类 号：X51[环境科学与工程—环境工程] O643.31[理学—物理化学]