초록 ▼

A method is provided for preparing a porous catalyst carrier having a pore volume of at least 0.5 cc/g, a content of micropores in which the pore diameter is between 80 and 150 A. which constitutes at least 70% of the pore volume and a content of macropores which constitutes less than 3% of the pore

A method is provided for preparing a porous catalyst carrier having a pore volume of at least 0.5 cc/g, a content of micropores in which the pore diameter is between 80 and 150 A. which constitutes at least 70% of the pore volume and a content of macropores which constitutes less than 3% of the pore volume. In the method, a powdered solid comprised of predominantly alpha-alumina monohydrate and sized in the range below 500 microns is treated with a particular amount of a monobasic acid. The acid in the resulting mixture is then at least partially neutralized by admixing with a nitrogen base such as aqueous ammonia. The treated and neutralized feed is converted into a catalyst carrier by shaping as desired, drying, and calcining. Further aspects of the invention are a hydrodesulfurization catalyst prepared using the present carrier and a hydrodesulfurization process for metals-contaminated hydrocarbon feeds using the catalyst.

대표청구항 ▼

A process for hydrodesulfurizing a hydrocarbon feed containing at least 10 ppm metals which comprises contacting the feedstock under hydrodesulfurizing conditions with a catalyst composition comprising an alumina support, a Group VIB component and a Group VIII component, said components being select

A process for hydrodesulfurizing a hydrocarbon feed containing at least 10 ppm metals which comprises contacting the feedstock under hydrodesulfurizing conditions with a catalyst composition comprising an alumina support, a Group VIB component and a Group VIII component, said components being selected from the group consisting of the metals, oxides and sulfides of the elements of Groups VIB and VIII, said support having a pore volume in the range from about 0.5 to about 1.1 cubic centimeters per gram and having at least 70 percent of said pore volume in pores having a diameter between 80 and 150 Angstroms and less than 3 percent of said pore volume in pores having a diameter above 1000 Angstroms, said pore size distribution for said support corresponding to values obtained by using mercury porosimetry.