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Effects of Different Pretreatment Conditions on Chromia Catalyst Performance during Hydrocarbon Dehydrogenation Reaction
Author(s): 
Pages: 534-538
Year: Issue:  5
Journal: Journal of Fudan University(Natural Science)

Keyword:  Cr catalysthydrocarbon dehydrogenationpretreatment of water vapor steamregeneration;
Abstract: 采用浸渍法制备了Cr系脱氢催化剂,考察在不同预处理条件下催化剂的脱氢性能,结果显示通过水蒸汽预处理的cr催化剂性能明显得到改善,随着水蒸汽处理时间延长,cr催化剂转化率降低,但稳定性提高.通过XRD、XPS等技术对反应前后催化剂样品进行表征,发现水蒸汽处理前后催化剂各组分含量、价态基本保持不变,且催化剂具有良好的再生性.
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