化工进展 ›› 2018, Vol. 37 ›› Issue (01): 301-310.DOI: 10.16085/j.issn.1000-6613.2017-0835

• 资源与环境化工 • 上一篇    下一篇

HCN、COS和CS2催化水解及其水解产物协同净化的研究进展

刘娜1, 宁平1, 李凯1, 梅毅2, 王驰2, 孙鑫1, 汤立红1, 宋辛1, 唐勰1   

  1. 1 昆明理工大学环境科学与工程学院, 云南 昆明 650500;
    2 昆明理工大学化学工程学院, 云南 昆明 650500
  • 收稿日期:2017-05-08 修回日期:2017-07-02 出版日期:2018-01-05 发布日期:2018-01-05
  • 通讯作者: 王驰,讲师,研究方向为大气污染控制。
  • 作者简介:刘娜(1994-),女,博士研究生,研究方向为大气污染控制。

Research progress in catalytic hydrolysis of HCN, COS and CS2and synergetic purification of hydrolysates

LIU Na1, NING Ping1, LI Kai1, MEI Yi2, WANG Chi2, SUN Xin1, TANG Lihong1, SONG Xin1, TANG Xie1   

  1. 1 College of Enviromental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China;
    2 College of Chemistry and Engineering, Kunming University of Science and Technology, Kunming 650500, Yunnan, China
  • Received:2017-05-08 Revised:2017-07-02 Online:2018-01-05 Published:2018-01-05

摘要: 氰化氢(HCN)、羰基硫(COS)、二硫化碳(CS2)广泛共存于黄磷尾气、焦炉煤气、碳一化工等化工行业废气中,目前大多数研究局限于3种气体的单独脱除,3种气体同时脱除的研究鲜有报道,而3种气体的协同脱除势在必行。催化水解法能够将HCN转化成NH3,COS和CS2水解成H2S。NH3和H2S可以分别被催化氧化为N2及S,S可以回收利用。一步法实现HCN、COS和CS2的水解及水解产物NH3和H2S的催化氧化的催化剂开发是该技术的核心问题,本文针对近几年3种气体水解催化剂的相关研究成果进行了综述,包括负载型催化剂和非负载型催化剂,与此同时,针对水解产物NH3和H2S的催化氧化的协同净化技术进行了分析,旨在为后续3种气体同时催化水解及协同净化其水解产物催化剂的开发提供理论指导,为低温环境下协同催化水解HCN、COS和CS2,并利用原料气中的氧一步法净化水解产物技术的未来发展及应用提供参考。

关键词: 催化, 水解, 催化剂载体, 氰化氢, 羰基硫, 二硫化碳, 水解产物, 协同净化

Abstract: HCN (hydrogen cyanide), COS (carbonyl sulfide)and CS2 (carbon disulfide) are widely coexisted in the chemical industry tail gas, for example, yellow phosphorus tail gas, coke oven gas and C1 chemical industry. At present, there are many studies on the single removal of the three gases, and the research on the simultaneous removal of the three gases is rarely reported. So simultaneous removing of three gases is necessary. HCN can be converted into NH3, and COS/CS2 can be converted into H2S during the catalysis hydrolysis process. NH3 and H2S can be catalytic oxidized to N2 and S respectively, and S can be recycled. The development of catalysts for the simultaneous catalytic hydrolysis of HCN, COS and CS2 and oxidation of NH3 and H2S in one step is the key problem of this technology. In this paper, the related research achievements of catalysts for hydrolysis of three gas were reviewed both in supported catalyst and unsupported catalyst. Meanwhile, the synergetic purification technology of hydrolysates (NH3 and H2S)was analyzed. This paper provides a reference to the development and application of the way that catalytic hydrolysis of HCN/COS/CS2 and synergistic purification of hydrolyzate in one-step at low temperature.

Key words: catalysis, hydrolysis, catalyst support, hydrogen cyanide, carbonyl sulfide, carbon disulfide, hydrolysis product, synergetic purification

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