1. Reactivity of sulfur compounds in FCC decant oils for hydrodesulfurization over CoMoS2/Al2O3 catalysts
- Author
-
Yong-Kul Lee, Jung-Geun Jang, and Jihyun Kim
- Subjects
General Chemical Engineering ,chemistry.chemical_element ,02 engineering and technology ,General Chemistry ,021001 nanoscience & nanotechnology ,Sulfur ,XANES ,Catalysis ,X-ray absorption fine structure ,Autoclave ,020401 chemical engineering ,chemistry ,Physisorption ,Reactivity (chemistry) ,0204 chemical engineering ,0210 nano-technology ,Hydrodesulfurization ,Nuclear chemistry - Abstract
CoMoS2/Al2O3 catalysts prepared by adding citric acid (CA) were synthesized and applied tor hydrodesulfurization (HDS) of fluid-catalytic cracking decant-oils (FCC-DO). The HDS of FCC-DO was carried out in an autoclave batch reactor at 653 K and 9.4 MPa H2. The structural properties of the catalysts were characterized by N2 physisorption, X-ray absorption fine structure spectroscopy (XAFS), and transmission electron microscopy (TEM). The S compounds in FCC-DO have been classified into three groups in terms of the reactivity of HDS. The Co K-edge XANES analysis confirmed the formation of the Co-Mo-S phase with the addition of CA, contributing to better activity in the HDS of FCC-DO.
- Published
- 2021