挥发性有机废气热氧化技术研究进展

doi:10.16085/j.issn.1000-6613.2017-0325

摘要/Abstract

摘要： 挥发性有机废气（VOCs）是一种单位体积能量密度低、成分复杂、热值波动大的有毒有害大气污染物。本文分别介绍了吸附浓缩、蓄热氧化和催化燃烧3类VOCs处理工艺，并主要从工程应用与实验研究两方面对当前3类工艺在国内外的最新研究进展进行了回顾，还重点从有机废气性质和工艺特点两方面分析了不同技术的优势和制约各自发展瓶颈。通过分析比较发现吸附浓缩对复杂有机废气的适应性较强，但单位体积吸附材料利用率较低、占地面积大；催化燃烧具有起燃温度低、节能等优点，但运行成本较高且单一催化剂对组分复杂的VOCs适应性差；蓄热燃烧具有较高的热回收率，但浓度低、热值波动大的有机废气限制了其运行的稳定性；组合式工艺相比3类基本工艺综合性能较好，但系统较复杂、稳定性较差以及占地面积大。未来，对不同工艺的优势进行组合与优化将成为经济、高效和安全治理挥发性有机废气最有效的途径之一。

关键词: 挥发性有机废气, 吸附浓缩, 蓄热, 催化燃烧, 热氧化

Abstract: Volatile organic compounds(VOCs)is a kind of poisonous and harmful air pollutants,and it has the characteristics of low energy density of per unit volume,complex composition and large fluctuation of calorific value. This paper introduced three sorts of technologies,namely, adsorption concentration,regenerative oxidation and catalytic combustion. Besides,the domestic and international latest research progresses were reviewed from two aspects of engineering application and experimental research. In addition,the existence of the value and the key problems which restrict the development of technology were analyzed mainly from the organic exhaust type. In terms of analysis and comparison,it draw the conclusions that the adsorption concentration has better adaptability to the complex components of VOCs,but the adsorption system of unit volume adsorption material utilization rate is low and occupies a large area comparatively. Catalytic combustion has some merits like low ignition temperature and energy saving,but higher operating costs and catalyst's poor adaptability on the complex components of VOCs limit its extensive application. Regenerative combustion has comparative high heat recovery rate,but the low concentration,large fluctuation of calorific value the engine exhaust limit the stability of its operation. Compared with the above three technologies,combination technologies have a better comprehensive performance. In the future,the advantages of different technologies are reasonably combined and optimized,which will become one of the most effective manners to manage volatile organic exhaust gas economically,efficiently and safely.

Key words: volatile organic compounds VOCs, adsorption and concentration, regenerative oxidation, catalysis combustion, thermal oxidation

中图分类号:

TQ052.73

杨仲卿, 刘显伟, 张力, 冉景煜, 闫云飞, 杜学森. 挥发性有机废气热氧化技术研究进展[J]. 化工进展, 2017, 36(10): 3866-3875.

YANG Zhongqing, LIU Xianwei, ZHANG Li, RAN Jingyu, YAN Yunfei, DU Xuesen. Research progress on the thermal oxidation technologies for volatile organic waste gas[J]. Chemical Industry and Engineering Progress, 2017, 36(10): 3866-3875.

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