Support effects on the chemical property and catalytic activity of Co-Mo HDS catalyst in sulfur recovery

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• 作者：Ali Nakhaei Pour ; Ali Morad Rashidi ; Kherolah Jafari Jozani ; Ali Mohajeri ; Payman Khorami
• 关键词：sulfur recovery ; Co-Mo catalyst ; carbon nanotubes ; HDS process
• 刊名：Journal of Natural Gas Chemistry
• 出版年：2010
• 出版时间：January 2010
• 年：2010
• 卷：19
• 期：1
• 页码：91-95
• 全文大小：250 K

文摘

Effects of carbon nanotubes (CNT) and alumina (γ-Al₂O₃) supports on the catalytic activities of hydrodesulfurization (HDS) process over Co-Mo catalyst have been studied. XRD results indicated that the main active phases in CNT and γ-Al₂O₃ supported Co-Mo catalysts are MoO₂ and MoO₃, respectively. The TPR results reveal that the reduction peak temperatures of the active species on CNT supported Co-Mo catalyst is lower than those on alumina supported Co-Mo catalyst, indicating that the CNT supports favor the reduction of active species. Catalytic evaluation results displayed that the sulfur content in the reaction products on the CNT supported Co-Mo catalyst is lower than that on the alumina supported Co-Mo catalyst if the HDS reaction was carried out at a temperature above 583 K.