The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 1991
Filed:
Jul. 03, 1989
Kinya Tawara, Saitama, JP;
Kazuyoshi Kudoh, Chiba, JP;
Kazushi Usui, Chiba, JP;
Tomohiro Yoshinari, Saitama, JP;
Shigenori Nakashizu, Saitama, JP;
Research Association for Residual Oil Processing, Tokyo, JP;
Abstract
A catalyst composition for the hydrogenation of heavy hydrocarbon oil, where the catalyst composition comprises at least one active ingredient for hydrogenation supported on a porous alumina carrier and has the following characteristics: (1) the total volume of the pores therein is from 0.4 to 1.0 ml/g; (2) the mean pore diameter of pores having a pore diameter of from 5 to 400 .ANG. is from 60 to 140 .ANG.; (3) the volume of pores having a pore size within .+-.25% of the mean pore diameter of pores having a pore diameter of from 5 to 400 .ANG. is from 60 to 98% of the volume of pores having a pore diameter of from 5 to 400 .ANG.; (4) the volume of pores having a pore diameter of from 400 to 5000 .ANG. is from 2 to 9% of the total volume of the entire pores; (5) the ratio (mm.sup.2 /mm.sup.3) of the outer surface area of a molded catalyst powder to the volume thereof is from 4 to 8; and (6) all points in the interior of the molded catalyst particle are positioned within 0.05 to 0.6 mm from the outer surface thereof. A process for producing the catalyst composition is also disclosed. Further, a process for hydrogenating heavy hydrocarbon oil, which comprises contacting the heavy hydrocarbon oil with the catalyst composition in the presence of hydrogen is disclosed.