刘飞,祁志福,方梦祥,申震,厉宸希

• 1:浙江大学能源清洁利用国家重点实验室
• 2:浙江浙能技术研究院有限公司

摘要(Abstract)：

化学吸收法是现阶段唯一可大规模捕集烟气CO_2的技术路线,有机胺是常用的吸收剂,有机胺挥发性对系统运行成本、环境污染等影响较大。本文对比了目前文献中用于测量有机胺气液平衡的静态总压法、改进型沸点仪、在线傅里叶红外等实验装置和方法,介绍了描述有机胺体系的Wilson模型、NRTL模型、UNIQUAC模型等热力学模型,重点综述了影响有机胺吸收剂挥发性的主要影响因素及研究现状。极性基团如羟基、伯氨基等有利于降低胺挥发。温度主要是影响亨利常数和饱和蒸气压,摩尔分数主要影响胺分子活度系数。常规胺基吸收剂的挥发性随CO_2负荷增加而减小,弱极性吸收剂的挥发性受到离子强度影响更大。结合烟气CO_2捕集特性,提出下一步有机胺吸收剂挥发性研究的主要方向。

关键词(KeyWords)： 二氧化碳捕集;有机胺;挥发性;气液平衡;亨利常数

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51776182);; 浙江浙能技术研究院项目(ZERD-KJ-2021-006)~~

作者(Author): 刘飞,祁志福,方梦祥,申震,厉宸希

DOI: 10.19666/j.rlfd.202107137

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