钙基CO_2吸收剂改性研究进展

Research progress in modified Ca-based sorbents for cyclic CO_2 capture

介绍了钙基CO2吸收剂的循环吸收特性,分析了钙基CO2吸收剂吸收能力下降的原因,并从水合作用、预热处理、掺杂添加剂及采用不同的钙前驱体等方面总结了近年来钙基CO2吸收剂改性研究现状,同时对所存在的问题及其改进方法进行了探讨。

The basic principle of Ca-based cyclic absorbing process is introduced. The possible reasons for decreasing CO2 capture efficiency of Ca-based sorbents with muhieycle absorption/regeneration operations are analyzed. An overview of the modification strategies of Ca-based sorbents, such as steam hydration, thermal pretreatment, addition of dopants or supports and modification of precursors, is performed. The problems of the modification process are discussed and the correspondingly improved methods are proposed as well.