Effect of Syngas Addition on Lower Alkene Production by the Oxidative Cracking of Hexane

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• 作者：Haiou Zhu ; Xuebin Liu ; Wenzhao Li ; Qingjie Ge ; and Hengyong Xu
• 刊名：Energy & Fuels
• 出版年：2005
• 出版时间：July 2005
• 年：2005
• 卷：19
• 期：4
• 页码：1704 - 1707
• 全文大小：79K
• 年卷期：v.19,no.4(July 2005)
• ISSN：1520-5029

文摘

The lower alkene production by the gas-phase oxidative cracking (GOC) or catalytic oxidativecracking (COC) of hexane (C6) with added syngas was investigated. The addition of syngas tothe COC process could effectively enhance the selectivity to lower alkenes and decrease theselectivity to CO_x, because of the preferential reaction between O₂ with H₂ contained in the syngas,whereas it has little effect on the conversion of C6 and product distribution in the GOC process.The high selectivity to lower alkenes of 70% and low selectivity to CO_x of 6% at C6 conversion of66% were achieved over 0.1% Pt/MgAl₂O₄ catalyst. The COC process of C6 combined with thesyngas in the feed could directly produce a gas mixture of lower alkenes, H₂, and CO, whichusually is a suitable feedstock for the hydroformylation process.