Patent ID: 6709639
Filing Date: 2004-03-23
Classification: C10G

Abstract:
An apparatus for purification of catalytic cracking gasolines containing dienic impurities, acetylenic impurities, or both, and mercaptans, said apparatus comprising:at least one selective hydrogenation reactor containing at least one fixed catalyst bed, said at least one selective hydrogenation reactor having at least one line for introducing a feed, at least one effluent outlet line, and at least one line for supplying hydrogen to said at least one hydrogenation reactor, at least one stabilization drum connected to said at least one effluent outlet line, said at least one stabilization drum having at least one gas outlet line and at least one stabilized effluent outlet line, at least one sweetening reactor comprising at least one effluent inlet line, at least one sweetened effluent outlet line, and at least one oxidizing agent supply line, wherein said effluent inlet line is in fluid communication with said at least one stabilized effluent outlet line, said apparatus further comprising at least one drum for degassing effluent from said at least one sweetening reactor, said at least one drum for degassing effluent having an inlet in fluid communication with said at least one effluent sweetened outlet line of said at least one sweetening reactor, at least one gas outlet line and at least one dedienized, stabilized and sweetened gasoline outlet line.