The effect of additives and impregnation stabilizers on hydrodesulfurization activity

Abstract

This paper describes results from a study of the effect of a variety of additives (Li, Mg, B and Si) and/or impregnation stabilizers (P,citric acid, and hydrogen peroxide) in alumina supported Ni-Mo and Co-Mo hydrodesulfurization catalysts on benzothiophene desulfurization activity. Correlations of HDS activity with surface area, pore size and Mo gradient as determined by XPS are proposed.