Effect of Cr Content on Catalytic Performance of Cr/MSU-1 Catalysts in Oxidative Dehydrogenation of Propane to Propylene with CO2

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	Effect of Cr Content on Catalytic Performance of Cr/MSU-1 Catalysts in Oxidative Dehydrogenation of Propane to Propylene with CO2
	Liu Haitao 1,2; Li Huiquan 1,2; Yang Weijiao 1,3; Wang Xingrui 1,3; Zhang Yi 1,2
刊名	ACTA CHIMICA SINICA
	2009-08-14
卷号	67 期号:15 页码:1749-1753
关键词	Cr/MSU-1 catalyst oxidative dehydrogenation carbon dioxide propane propylene
ISSN号	0567-7351
通讯作者	Liu, HT
英文摘要	The effects of Cr content on the catalyst structure and catalytic activities have been investigated over Cr/MSU-1 catalyst for oxidative dehydrogenation of propane to propylene with CO2. The wCr/MSU-1 catalysts [w=2.0, 4.0, 6.0, 8.0, 10.0, the quality fraction in the percentage (calculated in Cr2O3)] were evaluated and characterized with X-ray diffraction (XRD), diffuse reflectance UV-Vis and X-ray spectroscopy (XPS) techniques. The activity investigation results show that the best catalytic activity, 62.6% of propane conversion with 22.1% of CO2 conversion, were obtained on 6.0Cr/MSU-1 catalyst at 600 degrees C. The XRD characterization found that Cr/MSU-1 catalysts could maintain good MSU-1 pore structure and the high dispersion of Cr on catalyst surface. With increasing the Cr content the Cr2O3 crystal was detected on the catalyst surface. UV-Vis characterization results confirmed that Cr in the low content on the catalyst surface existed mainly in the form of Cr6+ whereas it existed mainly in the form of Cr3+ in the high Cr content catalysts. The characterization results of XPS for the fresh and used catalyst further confirmed that the content of Cr6+ had a good relationship with the catalytic activity. Based on these studies, Cr6+ was considered the active sites for this reaction.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Multidisciplinary
研究领域[WOS]	Chemistry
关键词[WOS]	MESOPOROUS SILICA ; OXIDE CATALYSTS ; CHROMIUM ; SBA-15
收录类别	SCI
语种	英语
WOS记录号	WOS:000269347500007
公开日期	2013-12-05
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/6605]
专题	过程工程研究所_湿法冶金清洁生产技术国家工程实验室
作者单位	1.Chinese Acad Sci, Inst Proc & Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc & Engn, Engn Lab Hydromet Cleaner Prod Tehnol, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu Haitao,Li Huiquan,Yang Weijiao,et al. Effect of Cr Content on Catalytic Performance of Cr/MSU-1 Catalysts in Oxidative Dehydrogenation of Propane to Propylene with CO2[J]. ACTA CHIMICA SINICA,2009,67(15):1749-1753.
APA	Liu Haitao,Li Huiquan,Yang Weijiao,Wang Xingrui,&Zhang Yi.(2009).Effect of Cr Content on Catalytic Performance of Cr/MSU-1 Catalysts in Oxidative Dehydrogenation of Propane to Propylene with CO2.ACTA CHIMICA SINICA,67(15),1749-1753.
MLA	Liu Haitao,et al."Effect of Cr Content on Catalytic Performance of Cr/MSU-1 Catalysts in Oxidative Dehydrogenation of Propane to Propylene with CO2".ACTA CHIMICA SINICA 67.15(2009):1749-1753.