INTEGRATED PYROLYSIS GASOLINE TREATMENT PROCESS

摘要

An integrated process for treating pyrolysis gasolines, including: feeding the pyrolysis gasoline to a first stage wherein the pyrolysis gasoline is substantially depentanized and acetylene and diolefins are reacted with hydrogen to produce an effluent having a reduced acetylene and diolefin content; and feeding the effluent to a second stage, wherein the second stage comprises a catalytic distillation hydrotreating process. The second stage may include a first catalytic distillation reactor system comprising a first distillation reaction zone containing a first hydrogenation catalyst, and the process may further include treating a C6-boiling material in the first distillation reaction zone to react sulfur compounds with hydrogen to produce hydrogen sulfide, the treated C6 material being concurrently separated as a second overheads from C7 and heavier material by fractional distillation, the C7 and heavier material being removed from the first distillation reaction zone as a first bottoms.