The Influence of Chlorine on the Migration Behavior of Alkali Metal during Biomass and Coal Co-Combustion

Abstract:

Rice straw and Tiefa coal were used as experimental materials. Under the conditions of different temperatures and Cl/K molar ratio, the experiment was performed by using co-firing devices and ion measure instruments (flame photometer and a visible spectrophotometer). The results reveal that the majority of alkali metals and chlorine are released to gas phase by the precipitation of alkali chloride and HCl(g) above 700°C. Alkali metals release increase with the raising of chlorine content in raw materials. Alkali metals release related to sulfur, silicon and aluminum etc.

• Periodical: Applied Mechanics and Materials (Volumes 40-41)
• Pages: 335-338
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.40-41.335
• Online since: November 2010
• Authors: Tian Hua Yang, Wan Li Xing, Xing Ping Kai, Run Dong Li, Ye Guang He
• Keywords: Alkali Metal, Chlorine, CoAl, Straw

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