摘要
化学吸收法是二氧化碳捕集技术中最具潜力、应用最广泛的碳捕集技术,但再生能耗高的问题仍普遍存在,加大了碳捕集的成本,制约了化学吸收碳捕集技术的推广。从化学吸收剂(胺类吸收剂、两相吸收剂、均相少水吸收剂、离子液体与低共熔溶剂)和工艺(吸收工艺优化、解吸工艺优化与复合工艺优化)两方面进行了总结,并对化学吸收法的未来发展进行了展望。分析表明,未来的重点研究方向是开发新型混合胺体系,研发低共熔溶剂,降低两相吸收剂、少水吸收剂与功能化离子液体的黏度与成本以及实现吸收剂低能耗再生;改进吸收工艺与解吸工艺时要充分利用系统中的余热,复合工艺改进需合理耦合若干个单一工艺优化方法,以最大程度降低系统能耗。
Chemical absorption method is the most potential and most widely used carbon dioxide capture technology.However,high renewable energy consumption is also a common problem,which increases the cost of carbon capture and restricts the promotion of chemical absorption carbon capture technology.The chemical absorbents(amine absorbent,two-phase absorbent,homogeneous aqueous absorbent,ionic liquids and deep eutectic solvent) and carbon capture technological process(absorption process optimization,desorption process optimization and composite process optimization) were summarized.The future development of chemical absorption method was prospected.The analysis shows that the key research direction in future will be developing novel mixed amine systems,designing deep eutectic solvent,declining the viscosity and cost of two-phase absorbent,homogeneous aqueous absorbent and ionic liquids,and achieving the low-energy regeneration.When improving the absorption process and desorption process,it is necessary to make full use of the waste heat in systems.In order to reduce the energy consumption of the system to get the greatest extent,several optimization methods of single process should be reasonably combined to improve the composite process.
作者
张嘉伟
顾文波
张富龙
ZHANG Jiawei;GU Wenbo;ZHANG Fuong(College of Electrical Engineering,Xinjiang University,Urumqi 830017,Xinjiang,China;Engineering Research Center of Northwest Energy Carbon Neutrality of Ministry of Education,Xinjiang University,Urumqi 830017,Xinjiang,China)
出处
《低碳化学与化工》
CAS
北大核心
2023年第4期96-106,共11页
Low-Carbon Chemistry and Chemical Engineering
基金
中央引导地方科技发展专项资金项目(ZYYD2022C16)
新疆维吾尔自治区重点研发任务专项项目(2022B01033)。
关键词
二氧化碳捕集
化学吸收法
新型吸收剂
捕集工艺优化
carbon capture
chemical absorption method
new absorbent
optimization of trapping process
