摘要
羰基硫(COS)广泛存在于黄磷尾气、电石炉尾气等矿热冶炼废气中,但因其结构较稳定,极性和酸性较弱难以直接脱除。本文综述了吸附法脱除COS常用的吸附剂以及吸附剂改性方法,对负载改性所涉及的活性组分进行详细介绍,并分析影响吸附效果的主要因素及吸附机理,对比不同吸附剂的再生方式及再生效果。最后,分析吸附法脱除COS存在的不足之处,并提出未来适合脱除COS的吸附剂的发展方向。
Carbonyl sulfide(COS) is widely found in yellow phosphorus tail gas, calcium carbide furnace tail gas and other mining and metallurgy waste gas, but it is difficult to remove directly due to its stable structure, weak polarity and acidity. In this paper, the commonly used adsorbents and modification methods of adsorbent for COS removal by adsorption method were reviewed, the active components involved in loading modification were introduced in detail, the main factors affecting effect of adsorbents and the adsorption mechanism were analyzed, and regeneration methods for different adsorbents and effects after regeneration were compared. Finally, the shortcomings of the adsorption method to remove COS are analyzed, and the future development direction of adsorbents suitable for COS removal is proposed.
作者
陈凯琳
黄小凤
李琳丽
杨熙斌
蒋明
Chen Kailin;Huang Xiaofeng;Li Linli;Yang Xibin;Jiang Ming(Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming,650504;College of Resources and Environment,Yunnan Agricultural University,Kunming,650201)
出处
《化学通报》
CAS
CSCD
北大核心
2021年第6期543-552,共10页
Chemistry
基金
国家自然科学基金项目(51768074)资助。
关键词
羰基硫
吸附剂
活性组分
吸附机理
Carbonyl sulfide
Adsorbent
Active components
Adsorption mechanism
