公开(公告)号：US3733260A

公开(公告)日：1973-05-15

申请号：US3733260D

申请日：1972-02-04

Applicant: TEXACO INC

Inventor： DAVIES J ,  WILLIAMS D ,  HILL T

IPC: C10G49/22 ,  C10G23/00

CPC classification number: C10G49/22

Abstract: A HYDRODESULFURIZATION PROCESS FOR TREATING A SULFUR CONTAINING GAS-OIL HYDROCARBON CHARGE TO YIELD A LOWSULFUR GAS-OIL PRODUCT AND A NAPHTHA PRODUCT WHEREIN EFFLUENT FROM A HYDRODESULFURIZATION PROCESS COMPRISING GAS-OIL, NAPHTHA, HYDROGEN AND HYDROGEN SULFIDE IS SEPARATED INTO A LIQUID FRACTION AND A VAPOR FRACTION, WHEREIN THE VAPOR FRACTION IS TREATED TO YIELD A TREATED HYDROGEN STREAM SUBSTANTIALLY FREE OF HYDROGEN SULFIDE, WHEREIN RECYCLE, NAPHTHA IS COMBINED WITH THE LIQUID FRACTION TO FORM A MIXTURE HAVING A BUBBLE POINT TEMPERATURE BELOW ABOUT 650*F. AT A PRESSURE OF ABOUT 130 P.S.I.G., WHEREIN THE LIQUID MIXTURE IS STRIPPED IN A STRIPPING ZONE TO REMOVE HYDROGEN SULFIDE EMPLOYING TREATED HYDROGEN AS STRIPPING VAPOR AT A PRESSURE OF ABOUT 100-130 P.S.I.G. AT THE BUBBLE POINT TEMPERATURE OF THE LIQUID MIXTURE, WHEREIN STRIPPED LIQUID SUBSTANTIALLY FREE O HYDROGEN SULFIDE IS FRACTIONATED INTO A NAPHTHA FRACTION AND A GAS-OIL FRACTION, AND WHEREIN A PORTION OF THE NAPHTHA FRACTION IS RECYCLED FOR MIXTURE WITH ADDITIONAL LIQUID FRACTION FROM THE HYDRODESULFURIZATION REACTION.