烟气中氯代芳构化合物催化氧化的研究进展
Research progress on the catalytic oxidation of chlorinated aromatic hydrocarbons in flue gas
孟柯 1杨甲甲 2樊芸 2韩帅 3张海军 2陈吉平2
作者信息
- 1. 河北工程大学,材料科学与工程学院,邯郸,056038;中国科学院大连化学物理研究所分离分析化学重点实验室,大连,116023
- 2. 中国科学院大连化学物理研究所分离分析化学重点实验室,大连,116023
- 3. 河北工程大学,材料科学与工程学院,邯郸,056038
- 折叠
摘要
焚烧是固体废物处理的重要方式,但由此产生的烟气中含有氯代芳构化合物(chlorinated aromatic hydrocarbons,CAHs),对环境和健康构成威胁.催化氧化技术因其高去除率、低能耗、低二次污染等优点被认为是去除烟气中CAHs最有效的方法之一.本文系统介绍了常见的催化剂种类,包括贵金属催化剂、过渡金属氧化物催化剂和分子筛催化剂,并比较了它们的优缺点.同时,深入探讨了催化氧化反应的机制、催化剂失活原因和再生方法,并强调了催化剂的组分、载体、结构和制备方法等对催化剂活性的重要影响.最后,根据文献研究,对CAHs的催化氧化进行了展望.未来研究应进一步优化催化剂设计,提高反应效率,并将其应用于实际焚烧烟气治理.
Abstract
Incineration is an important method for solid waste treatment,but the resulting flue gas contains Chlorinated aromatic hydrocarbons(CAHs),which pose a threat to both the environment and human health.Catalytic oxidation technology is recognized as one of the most effective methods for removing CAHs due to its high removal rate,low energy consumption,and minimal secondary pollution.This paper systematically introduces common catalyst types,including noble metal catalysts,transition metal oxide catalysts,and molecular sieve catalysts,and compares their respective advantages and drawbacks.Furthermore,the mechanism of catalytic oxidation reactions,causes of catalyst deactivation,and regeneration methods are discussed,with an emphasis on the significant impact of catalyst components,structures,supports,and preparation methods on catalyst activity.Finally,based on existing research,the prospects of catalytic oxidation of CAHs are examined.Future research should focus on optimizing catalyst design,enhancing reaction efficiency,and applying the technique to the practical treatment of incineration flue gas.
关键词
催化氧化/氯代芳构化合物(CAHs)/催化剂/催化氧化机制/催化失活Key words
catalytic oxidation/chlorinated aromatic hydrocarbons(CAHs)/catalyst/catalytic oxidation mechanism/catalyst deactivation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据