新型CO_(2)捕集溶剂及工艺的研究进展  

Research progress of novel carbon dioxide capture solvents and processes

作　　者：李媛[1] 张辰 张腾 马鹏飞 余云松[1] 薛庆伟 LI Yuan;ZHANG Chen;ZHANG Teng;MA Pengfei;YU Yunsong;XUE Qingwei(School of Chemical Engineering and Technology,Xi’an Jiaotong University,Xi’an 710049,China;Beijing Petrochemical Engineering Co.,Ltd.,Xi’an Branch,Xi’an 710061,China)

机构地区：[1]西安交通大学化学工程与技术学院,陕西西安710049 [2]北京石油化工工程公司西安分公司,陕西西安710061

出　　处：《热力发电》2023年第7期14-25,共12页Thermal Power Generation

基　　金：国家自然科学基金项目(52276135)。

摘　　要：化学吸收法是处理燃煤电厂尾气CO_(2)最有希望大规模应用的重要途径,然而传统以乙醇胺为吸收剂的化学吸收法由于再生能耗过高限制了其广泛应用。结合新型CO_(2)捕集溶剂阐述了捕集工艺改进的研究进展,概述了包含吸收塔中间冷却及溶剂再循环的吸收过程工艺改进、闪蒸压缩及蒸汽/戊烷直接吹扫的再生过程工艺改进,并指出结合烟气实际组分开展新型溶剂的中试规模验证、捕集溶剂降解物性及挥发性有机物的处理工艺的研究为碳捕集技术的研发方向,为未来工业碳捕集的研究指明了方向。Chemical absorption method is an important way to apply and treat CO_(2) from coal-fired power plants on a large scale,however,the traditional chemical absorption method with monoethanolamine as absorbent has been limited in its wide application because of the high energy consumption.In this paper,the research progress on the improvement of CO_(2) capture process is reviewed with the new CO_(2) capture solvents,the improvement of absorption process including intermediate cooling of absorber and solvent recirculation,Flash compression and regeneration process of steam/pentane direct purging are summarized,it was also pointed out that pilot-scale verification of new solvents based on the actual composition of flue gas,and the study of capture solvent degradation properties and volatile organic compound treatment processes were the research and development directions of carbon capture research,it points the way for future research on industrial carbon capture.

关 键 词：CO_(2)捕集 新型溶剂 化学吸收 工艺优化 再生能耗 

分 类 号：X773[环境科学与工程—环境工程]