Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Process for regenerating spent heavy hydrocarbon hydroprocessing catalyst

Process for regenerating spent heavy hydrocarbon hydroprocessing catalyst

US Patent 4997799 · Granted Mar 5, 1991

Estimated economic value: $50,693,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method for grading cylindrical catalyst particles in a bed to reduce pressure dr1998
Distillate hydrogenation catalyst1996
Distillate hydrogenation utilizing a catalyst comprising platinum, palladium, an1994
Distillate hydrogenation1994
Alkyl carbonate extraction process1994
Distillate hydrogenation catalyst1994
Process for regenerating a spent resid hydroprocessing catalyst using a group II1994
Process for regenerating a spent resid hydroprocessing catalyst using a group II1994
Manufacture of lubricating oils1993
Distillate hydrogenation1993
Process for regenerating a spent resin hydroprocessing catalyst using a group IV1993
Distillate hydrogenation catalyst1993