Reaction Performance and Chemical Structure Changes of Oil Sand Bitumen during the Fluid Thermal Process

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• 作者：An-gui Zhang ; Jinsen Gao ; Gang Wang ; Chunming Xu ; Xinying Lan ; Guoqing Ning ; Yongmei Liang
• 刊名：Energy & Fuels
• 出版年：2011
• 出版时间：August 18, 2011
• 年：2011
• 卷：25
• 期：8
• 页码：3615-3623
• 全文大小：869K
• 年卷期：v.25,no.8(August 18, 2011)
• ISSN：1520-5029

文摘

This study investigated the reaction behavior of oil sand bitumen from Inner Mongolia using a fluid-bed thermal reactor. The optimal temperature and reaction time were obtained. The results showed that the fluid thermal reaction was a feasible carbon rejection process that could be used to obtain high-quality liquid products from oil sand bitumen. The structures of bitumen and their liquid products derived from fluid thermal conversion were analyzed using an infrared spectrum and proton nuclear magnetic resonance techniques, and the average structural parameters were determined using the modified Brown鈥揕adner method. In comparison to native bitumen, the average structural parameters of liquid products were significantly changed. For different oil sand bitumen, the structural changes revealed a similar tendency for the coking formation of polycyclic aromatics and the cleavage of long paraffin side chains during fluid thermal conversion.