氨法碳捕集中氨逃逸抑制机制研究进展

doi:10.16085/j.issn.1000-6613.2017-0653

摘要/Abstract

摘要： 氨法碳捕集技术具有低成本、高脱除效率等特点，在电厂烟气CO₂脱除领域具有很大的应用前景，但氨逃逸是制约该技术推广应用的主要障碍。基于此，本文综述了近年来氨逃逸抑制技术及其应用方面的进展。首先阐述了吸收-解吸过程氨逃逸传递过程理论，分析了氨逃逸影响因素；其后，重点回顾了代表性氨逃逸抑制技术，包括水（酸）洗、添加剂、参数优化以及流程改进等，并且分析了各技术之间的优缺点。最后，就氨逃逸抑制技术的发展趋势进行了展望，指出氨逃逸抑制技术的系统集成是发展趋势，同时，低成本、低能耗、高效率抑制剂是未来应用研究的重点之一。

关键词: 二氧化碳捕集, 氨逃逸抑制技术, 反应器, 吸收剂, 添加剂, 优化

Abstract: Ammonia carbon capture technology has the advantages of low cost and high efficiency in removing CO₂,which has great potentials in several applications,particularly in stationary power generation systems. However,ammonia escape is one of the main obstacles. This paper presented a review on the development of mechanism and applications of reducing ammonia escaping technology in the recent years. Firstly,the mass transfer phenomenon of ammonia escaping in absorption and desorption process was described,and the factors influencing the ammonia escaping were analyzed and discussed. Then,the typical technologies of ammonia escaping control were outlined and highlighted,including water(acid)washing,additive,parameter optimization,in terms of their advantages and disadvantages. Finally,the outlook of ammonia escape suppression technology was presented. The combination of different options is believed as a significant development trend. At the same time,low cost and energy consumption,as well as high efficiency will be focused in the future research.

Key words: CO₂ capture, ammonia escape reduction, reactor, absorption solvent, additive, optimization

中图分类号:

X511

王甫, 赵军, 邓帅, 赵加佩, 袁金良, 杨国华, 严晋跃. 氨法碳捕集中氨逃逸抑制机制研究进展[J]. 化工进展, 2017, 36(12): 4641-4650.

WANG Fu, ZHAO Jun, DENG Shuai, ZHAO Jiapei, YUAN Jinliang, YANG Guohua, YAN Jinyue. Review on development and mechanism of reducing ammonia escape from carbon dioxide capture process using ammonia method[J]. Chemical Industry and Engineering Progress, 2017, 36(12): 4641-4650.

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