Chemical-mechanical Bromination of Biomass Ash for Mercury Removal from Flue Gases
Current approaches for mercury removal have been focusing on injection of powdered activated carbon sorbents into the flue gas stream.In particular,brominated activated carbon has been proven at pilot scale and plant trials to be effective at removing mercury from flue gases of coal-fired power plants.However,activated carbon is a costly source material.Using an industrial solid waste from biomass combustion as an alternative source material to produce sorbents for mercury emission control is an attractive option.This paper describes a novel chemical-mechanical bromination process for production of mercury sorbent from a biomass combustion ash,which is normally considered a solid waste.The chemical-mechanical brominated ash was characterized and tested for mercury capture and release at high temperatures.The brominated biomass ash was found to effectively capture mercury up to 375oC in lab scale tests.The tests of the new brominated sorbent in a 375 MW coal fired power plant showed promising performance
mercury capture:biomass ash:chemical-mechanical bromination
Teresa M. Bisson Zhenghe Xu Rajender Gupta Yadollah Maham Yan Liu Hongqun Yang Ian Clark Manoj Patel
Department of Chemical and Materials Engineering,University of Alberta,Edmonton,Alberta,Canada,T6G 2 Capital Power Corporation,Edmonton,Alberta,Canada,T5J 2Z1
国际会议
The 8th International Symposium on Gas Cleaning at High Temperatures(第八届国际高温气体净化技术研讨会 GCHT-8)
太原
英文
14-25
2010-08-23（万方平台首次上网日期，不代表论文的发表时间）