关键词: 钙基吸收剂, HCl气体, 脱氯性能

Abstract: In this work，the research progress in HCl removal technology using Ca-based sorbents was summarized. The dechlorination characteristics of various Ca-based sorbents and different methods to improve sorbent performance were introduced. The influence of Ca/Cl molar ratio，reaction temperature，particle size，reaction atmosphere on the dechlorination of Ca-based sorbents was also discussed. The research emphases should be focused on the mechanism of dechlorination reactions and the solutions to key problems，such as low dechlorination efficiency. In addition，the necessity of HCl removal was discussed in the process of biomass gasification reforming for the hydrogen production coupling with CO2 capture using Ca-based sorbents. The possible effect of HCl on cyclic CO2 capture by Ca-based sorbents was proposed. Furthermore，the competitive reaction rules and interaction mechanisms between HCl and CO2 with Ca-based sorbents and their cooperative control method should be investigated. It is significantly important to simultaneously capture CO2 and HCl in the biomass gasification reforming for hydrogen production.

Key words: Ca-based sorbents, chlorine hydrid（HCl）, dechlorination performance