PROCESS FOR PRODUCTION OF HYDROGENATED PETROLEUM RESINS

摘要

A process for the production of hydrogenated petroleum resins by hydrogenating a petroleum resin, which comprises providing a distillation column after the prehydrogenation column to thereby remove hydrogen sulfide formed in the prehydrogenation column, and then further hydrogenating the resulting product in the posthydrogenation column and which can attain high productivity with the catalytic activity kept at a high level even in long-time continuous hydrogenation.