文献类型：期刊文献

英文题名：Regulation and migration behaviour of chlorine during corn straw gasification

作者：Chen, Li[1,2];Xu, Zhiyuan[3];Xie, Xiaoyang[1,2];Shen, Zhongjie[1,2];Xu, Jianliang[1,2];Dai, Zhenghua[1,2];Liu, Haifeng[4]

机构：[1]East China Univ Sci & Technol, Natl Energy Coal Gasificat Technol Res & Dev Ctr, POB 272, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, POB 272, Shanghai 200237, Peoples R China;[3]China Coal Inner Mongolia Energy Co Ltd, Hohhot 010000, Peoples R China;[4]Liaoning Petrochem Univ, Fushun 113001, Liaoning, Peoples R China

年份：2026

卷号：414

外文期刊名：FUEL

收录：;EI(收录号：20260419957245);WOS:【SCI-EXPANDED(收录号:WOS:001667690200001)】；

基金：The research was funded by the 2023 Xinjiang Key R&D Program Projects (No. 2023B01013) , the National Natural Science Foundation of China (Nos. 22378130 and U23B20170) , and the Ministry of Education Engineering Research Center for Carbon-Neutral Utilization of Carbon-Containing Wastes and National Energy Coal Gasification Center.

语种：英文

外文关键词：Gasification; Biomass; Chlorine; Transformation behaviour

摘要：During the biomass gasification process, the migration of chlorine can corrode the membrane walls and gas pipelines of the gasification system. This study investigates the forms and migration behaviour of chlorine under different operating conditions in the gaseous phase, bottom ash, and fly ash via response surface methods. The results demonstrate that chlorine release can be effectively regulated. As the temperature rises and particle size decreases, the proportion of released gaseous chlorine can reach 55.9 %. The addition of steam also promotes chlorine migration into the gaseous phase. X-ray photoelectron spectroscopy reveals a key C-Cl intermediate, providing mechanistic evidence for secondary reactions between volatilised chlorides and the residual char that prolong chlorine retention. Kinetics analysis reveals a low activation energy (17.76 kJ/mol), indicating that the release process is dominated by diffusion and evaporation rather than chemical bond cleavage. This work delivers actionable strategies for regulating chlorine distribution and offers fundamental insights into its migration mechanisms, providing a viable approach to mitigating chlorine-induced corrosion in industrial gasification systems.