摘要
控制和减缓化石能源燃烧所排放的CO2对于缓解全球变暖和温室效应具有重要意义。作为一种燃烧后CO2捕集技术,采用钙基吸收剂循环煅烧/碳酸化(cyclic calcination/carbonation reaction,CCCR)法捕集烟气中CO2的技术因其相对于胺吸收法有一定的经济性而受到关注。在对钙基吸收剂CCCR法的基本概念与特点介绍的基础上,对其中3个重要的研究内容与存在问题,即反应动力学、吸收剂循环转化率与吸收剂的改性以及双流化反应器的研究现状进行综述分析,指出应研究气固反应临界产物层的形成与生长规律,研制高循环反应活性、稳定性和机械强度且价廉及环境友好的吸收剂,开展钙基吸收剂CCCR法综合特性、与燃煤电厂系统组合与优化方案及其技术经济分析。
Capturing CO2 from fossil fuel combustion is of importance in the CO2-constrained world for mitigation of climate warming.As a kind of the post combustion CO2 capture technologies,the cyclic calcination/carbonation reaction（CCCR） with Ca-based sorbents to capture CO2 from flue gases has been paid more attention,due to its economics comparing favorably to the amine scrubbing.The basic concept of the CCCR is presented,together with comprehensive analyses of its main three research aspects：the reaction kinetics,cyclic carbonation conversion and dual fluidized bed reactor.Further research and development are indicated,including formation and growth of critical product layer in the solid-gas reaction;sorbents with higher cyclic reaction activity,stability and mechanical strength,as well as comprehensive characteristic,optimum configuration and techno-economic analyses of the CCCR integrated with coal-fired power plant system.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2010年第26期35-43,共9页
Proceedings of the CSEE
基金
国家重点基础研究发展计划项目(973项目)(2006CB705807)~~
关键词
钙基吸收剂
煅烧
碳酸化
CO2捕集
Ca-based sorbent
calcination
carbonation
CO2 capture
