Hydrodesulfurizing catalyst composition and method of preparing same

摘要

A catalyst composition comprising a Group VIA metal, a Group VIII metal and an alumina, the catalyst composition containing the Group VIA metal and the Group VIII metal in a combined amount of 20 to 70% by weight based on the total of the Group VIA metal, the Group VIII metal and the alumina, being characterized by an X-ray diffraction pattern having no diffraction peak other than that of the alumina, and, after air-calcined at 550 degrees C. for three hours, being characterized by a TPR spectrum of the air-calcined catalyst composition in that the TPR spectrum gives a ratio of the area L of a low temperature reduction peak to the area H of a high temperature reduction peak, L/H, ranging from 0.1 to 0.45.