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	Characteristics and reactivity of rapidly hydrated sorbent for semidry flue gas desulfurization
	Zhang, Jie ; You, Changfu ; Zhao, Suwei ; Chen, Changhe ; Qi, Haiying
	2010-05-11 ; 2010-05-11
关键词	FLY-ASH DRY DESULFURIZATION LOW-TEMPERATURE SO2 REMOVAL REACTIVATION REACTOR LIME Engineering, Environmental Environmental Sciences
中文摘要	Semidry flue gas desulfurization with a rapidly hydrated sorbent was studied in a pilot-scale circulating fluidized bed (CFB) experimental facility. The desulfurization efficiency was measured forvarious operating parameters, including the sorbent recirculation rate and the water spray method. The experimental results show that the desulfurization efficiencies of the rapidly hydrated sorbent were 1.5-3.0 times higher than a commonly used industrial sorbent for calcium to sulfur molar ratios from 1.2 to 3.0, mainly due to the higher specific surface area and pore volume. The Ca(OH)(2) content in the cyclone separator ash was about 2.9% for the rapidly hydrated sorbent and was about 0.1% for the commonly used industrial sorbent, due to the different adhesion between the fine Ca(OH)(2) particles and the fly ash particles, and the low cyclone separation efficiency for the fine Ca(OH)(2) particles that fell off the sorbent particles. Therefore the actual recirculation rates of the active sorbent with Ca(OH)(2) particles were higher for the rapidly hydrated sorbent, which also contributed to the higher desulfurization efficiency, The high fly ash content in the rapidly hydrated sorbent resulted in good operating stability. The desulfurization efficiency with upstream water spray was 10-15% higher than that with downstream water spray.
语种	英语 ; 英语
出版者	AMER CHEMICAL SOC ; WASHINGTON ; 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/25567]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang, Jie,You, Changfu,Zhao, Suwei,et al. Characteristics and reactivity of rapidly hydrated sorbent for semidry flue gas desulfurization[J],2010, 2010.
APA	Zhang, Jie,You, Changfu,Zhao, Suwei,Chen, Changhe,&Qi, Haiying.(2010).Characteristics and reactivity of rapidly hydrated sorbent for semidry flue gas desulfurization..
MLA	Zhang, Jie,et al."Characteristics and reactivity of rapidly hydrated sorbent for semidry flue gas desulfurization".(2010).

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