couplingcatalytichydrolysisandoxidationforcs2removal

	couplingcatalytichydrolysisandoxidationforcs2removal
	WANG Li; WU Diyong; WANG Shudong; YUAN Quan
刊名	journalofenvironmentalsciences
	2008-01-01
卷号	20 期号:4 页码:436
ISSN号	1001-0742
英文摘要	CS2 removal was obtained by coupling catalytic hyidation on bi-functional catalyst. On the hydrolysis active Sites, CS2 is hydrolyzed to H2S, while on the oxidation active sites, H2S is oxidized to elemental S or sulfuric acid deposited on the porous support. The above can be expressed as follows: CS2 (H2O) under right arrow COS (H2O) under right arrow H2S (O-2) under right arrow S/SO42-. H2S oxidation eliminates its prohibition on CS2 hydrolysis so that the rate of coupling removal CS2 is 5 times higher than that Of CS2 hydrolysis. The same active energy of hydrolysis and coupling reaction also indicates that H2S oxidation does not change the reaction mechanism Of CS2 hydrolysis. Temperature has obvious effect on the process while the mole ratio Of O-2 concentration to CS2 concentration (O/S) does not, especially in excess of 2.5. The formation of sulfuric acid on the catalyst surface poisons hydrolysis active sites and causes the decrease of left OH-1 concentration on the catalysts surface. Lower temperature is suggested for this bi-functional catalyst owing to the low yield ratio Of S/SO42-.
语种	英语
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/175471]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	中国科学院大连化学物理研究所
推荐引用方式 GB/T 7714	WANG Li,WU Diyong,WANG Shudong,et al. couplingcatalytichydrolysisandoxidationforcs2removal[J]. journalofenvironmentalsciences,2008,20(4):436.
APA	WANG Li,WU Diyong,WANG Shudong,&YUAN Quan.(2008).couplingcatalytichydrolysisandoxidationforcs2removal.journalofenvironmentalsciences,20(4),436.
MLA	WANG Li,et al."couplingcatalytichydrolysisandoxidationforcs2removal".journalofenvironmentalsciences 20.4(2008):436.