QQ客服 官方微博 反馈留言

	Mass transfer and kinetics study on the sulfite forced oxidation with manganese ion catalyst
	Bo, Zhao ; Yan, Li ; Zhuo Yuqun ; Tong Huiting ; Zhang Xiaowen ; Chen Changhe
	2010-05-10 ; 2010-05-10
会议名称	KOREAN JOURNAL OF CHEMICAL ENGINEERING ; 6th Korea-China Workshop on Clean Energy Technology ; Busan, SOUTH KOREA ; Web of Science
关键词	kinetics forced oxidation mass transfer manganese ion catalyst AQUEOUS SULFUR-DIOXIDE OXYGEN ABSORPTION SO2 GAS AUTOXIDATION BISULFITE LIQUID Chemistry, Multidisciplinary Engineering, Chemical
中文摘要	Wet limestone scrubbing is the most common flue gas desulfurization process (FGD) for control of sulfur dioxide emissions from the combustion of fossil fuels. Forced oxidation, which controls the overall reaction of the sulfur dioxide absorption, is the key path of the process. Manganese which comes from the coal is one of the catalysts during the forced oxidation process. In the present works the two-film theory was used to analyze the sulfite forced oxidation reaction with an image boundary recognition technique, and the oxidation rate was experimentally studied by contacting pure oxygen with a sodium sulfite solution. There was a critical sulfite concentration 0.328 mol/L without catalyst or at a constant catalyst concentration value. The kinetics study focused on the active energy of the reaction and the reaction constant k; furthermore, we obtained the order with respect to the sulfite and Mn2+ concentrations. When the Mn2+ catalyst concentration was kept unchanged, the sulfite oxidation reaction rate was controlled by dual film and the reaction kinetics was first order with respect to sulfite while SO32- concentration was below 0.328 mol/L; the sulfite oxidation reaction rate was controlled by gas film only and the reaction kinetics was zero order with respect to sulfite while SO(3)(2-)concentration over 0.328 mol/L. When SO32- concentration was kept unchanged, the sulfite oxidation reaction rate depended on gas-liquid mass transfer and the reaction kinetics was different in various stages with respect to Mn2+ concentrations.
会议录出版者	KOREAN INST CHEM ENGINEERS ; SEOUL ; #307 REGENT RIVER VIEW OFFICE, 547-8 KUI-DONG SUNGDONG-KU, SEOUL 133-200, SOUTH KOREA
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/19578]
专题	清华大学
推荐引用方式 GB/T 7714	Bo, Zhao,Yan, Li,Zhuo Yuqun,et al. Mass transfer and kinetics study on the sulfite forced oxidation with manganese ion catalyst[C]. 见:KOREAN JOURNAL OF CHEMICAL ENGINEERING, 6th Korea-China Workshop on Clean Energy Technology, Busan, SOUTH KOREA, Web of Science.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。