Support effects on the chemical property and catalytic activity of Co-Mo HDS catalyst in sulfur recovery |
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Authors: | Ali Nakhaei Pour Ali Morad Rashidi Kherolah Jafari Jozani Ali Mohajeri Payman Khorami |
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Affiliation: | Research Institute of Petroleum Industry of National Iranian Oil Company, P. O. Box 114665-137, Tehran, Iran |
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Abstract: | Effects of carbon nanotubes (CNT) and alumina (-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 -Al2O3 supported Co-Mo catalysts are MoO2and MoO3, respectively. The TPR results reveal that the reduction peak temperatures of the active species on CNT supported Co-Mo catalystis lower than those on alumina supported Co-Mo catalyst, indicating that the CNT supports favor the reduction of active species. Catalyticevaluation results displayed that the sulfur content in the reaction products on the CNT supported Co-Mo catalyst is lower than that on thealumina supported Co-Mo catalyst if the HDS reaction was carried out at a temperature above 583 K. |
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Keywords: | sulfur recovery Co-Mo catalyst carbon nanotubes HDS process |
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