Patent ID: 7368617

Claim:
A process for the hydrogenation of acetylenes and dienes in a stream containing hydrogen, methane, C 2 -C 6 olefins and paraffins, C 2 -C 6 acetylenes and dienes, benzene, toluene, xylenes, and other C 6+ components comprising passing said stream over a hydrogenation catalyst contained in a downflow boiling point reactor having a top and a bottom wherein the downflow boiling point reactor is operated at the boiling point of the mixture and the heat of reaction is absorbed by the boiling liquid and where a portion of the acetylenes and dienes are converted to their corresponding olefms and paraffins of the same carbon number, recovering an effluent containing liquid and vapor from the bottom of the boiling point reactor, feeding the vapor in said effluent to a C 5 /C 6 splitter where C 5 and lighter material are taken as overheads and C 6 and heavier material is taken as bottoms and a side draw is taken from said C 5 /C 6 splitter and fed to the top of the downflow boiling point reactor.