Thiophene hydrodesulfurization over CoMo/Al2O3-CuY catalysts: Temperature effect study

• Main Authors: Yamina Boukoberine, Boudjema Hamada
• Format: Article
• Language: English
• Published: Elsevier 2016-09-01
• Series: Arabian Journal of Chemistry
• Subjects: Hydrodesulfurization; Thiophene; CoMo/γ-Al2O3 catalyst; CuY zeolite
• Online Access: http://www.sciencedirect.com/science/article/pii/S1878535211001705

CoMo/γ-Al2O3-CuY catalysts are prepared by physically mixing CoMo/γ-Al2O3 catalyst with Cu-exchanged Y zeolite. The CuY zeolite is prepared by the solid state ion exchange technique. The thiophene hydrodesulfurization is performed in a fixed bed reactor at high temperature and atmospheric pressure. The results show that the presence of CuY zeolite particles in CoMo/Al2O3 catalyst can have a noticeable effect on both the conversion and product selectivities. An increasing zeolite loading in catalyst results in a decrease of the thiophene HDS activity. This decrease is probably caused by the formation of heavy compounds and the deactivation of the zeolite at high temperatures.