Dehydrochlorination of 1,2-dichloroethane over Ba-modified Al2O3 catalysts

doi:10.1039/c6ra08855d

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	Dehydrochlorination of 1,2-dichloroethane over Ba-modified Al2O3 catalysts
	Bai, SX; Dai, QG; Chu, XX; Wang, XY; Wang, XY (reprint author), E China Univ Sci & Technol, Res Inst Ind Catalysis, Key Lab Adv Mat, Shanghai 200237, Peoples R China.
	2016
发表期刊	RSC ADVANCES
ISSN	2046-2069
卷号	6 期号:58 页码:52564-52574
文章类型	期刊论文
摘要	Bimodal mesoporous alumina (Al2O3) was prepared using polyethyleneglycol (PEG 20 000) and cetyl trimethyl ammonium bromide as a template. The incorporation of Ba with various loadings was carried out by incipient wetness. Characterization was performed by XRD, N-2 sorption isotherms, and pyridine FTIR. Ba can be highly dispersed on Al2O3 covering the strong acid sites of Al2O3. In the catalytic dehydrochlorination of 1,2-dichloroethane (1,2-DCE), the Ba/Al2O3 catalysts present a high activity, of which Al2O3 is most active with 95% conversion at 325 degrees C, related to the more Lewis acidic Al3+ sites in a tetrahedral environment. 1,2-DCE adsorbs dissociatively on Lewis acid-base pair sites, forming chlorinated ethoxy species, which are supposed to be intermediate species for vinyl chloride (VC) production. At a temperature higher than 400 degrees C, the dehydrochlorination of VC occurs on the strong acid sites of Al2O3. Ba can promote greatly the selectivity for VC through a decrease in the strong acid sites. A high stable activity for dehydrochlorination and high selectivity for VC can be obtained over Ba/Al2O3 in the presence of oxygen.
DOI	10.1039/c6ra08855d
收录类别	SCI
语种	英语
WOS记录号	WOS:000378563200007
引用统计	被引频次：11[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/26468
专题	中科院上海应用物理研究所2011-2018年
通讯作者	Wang, XY (reprint author), E China Univ Sci & Technol, Res Inst Ind Catalysis, Key Lab Adv Mat, Shanghai 200237, Peoples R China.
推荐引用方式 GB/T 7714	Bai, SX,Dai, QG,Chu, XX,et al. Dehydrochlorination of 1,2-dichloroethane over Ba-modified Al2O3 catalysts[J]. RSC ADVANCES,2016,6(58):52564-52574.
APA	Bai, SX,Dai, QG,Chu, XX,Wang, XY,&Wang, XY .(2016).Dehydrochlorination of 1,2-dichloroethane over Ba-modified Al2O3 catalysts.RSC ADVANCES,6(58),52564-52574.
MLA	Bai, SX,et al."Dehydrochlorination of 1,2-dichloroethane over Ba-modified Al2O3 catalysts".RSC ADVANCES 6.58(2016):52564-52574.

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