Comparison between Conventional and Metakaolin bi-functional Catalyst in the Hydrodesulfurization Operation

Khlood S.  AlKhafaji; Bashir Y.  Al-Zaidi; Zaidoon M.  Shakor; Sattar J.  Hussein

doi:10.52716/jprs.v12i2.658

Authors

Khlood S. AlKhafaji 3Department of Chemical Engineering, University of Technology, Baghdad, Iraq
Bashir Y. Al-Zaidi Department of Chemical Engineering, University of Technology, Baghdad, Iraq
Zaidoon M. Shakor Department of Chemical Engineering, University of Technology, Baghdad, Iraq
Sattar J. Hussein Ministry of Oil/ Petroleum Research and Development Center/ BaghdadL Iraq

DOI:

https://doi.org/10.52716/jprs.v12i2.658

Keywords:

Hydrodesulfurization, Kaolin, Alumina metakaolin, CoMo-AMK catalyst, Gasoil

Abstract

The present study investigates hydrodesulfurization (HDS) of gas oil with 9300 ppm (0.93 wt%) sulfur supplied from Al-Dura Refinery by using an economic catalyst prepared from raw mineral (kaolin clay) cemented by alumina as composite support alumina meta-kaolin (AMK). Characterization of the prepared catalyst was achieved by using Energy Dispersive X-Ray Analysis (EDAX), scanning electron microscopy (SEM), BET surface area, pore volume , Bulk density, X-ray diffraction analysis (XRD) and Fourier-transform infrared spectroscopy (FTIR). AMK was modified as a bifunctional catalyst with active metal (Co and Mo). The hydrodesulfurization (HDS) efficiency was evaluated and compared with the traditional catalyst (CoMo-Al2O3) in a hydrotreating reaction carried out in one stage reactor at temperature 375 oC, pressure 40 bar, LHSV 1hr-1, and H2/HC ratio 200 vol. ratio. 62.2% and 90% of hydrodesulfurization efficiency were achieved for prepared catalyst (CoMo-AMK) and commercial CoMo-Al2O3 respectively at the same operating conditions.

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