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公开(公告)号：MY113035A
公开(公告)日：2001-11-30
申请号：MYPI19950186
申请日：1995-01-26
Applicant: THE M W KELLOGG COMPANY
Inventor： MICHAEL GLENN HUNTER
Abstract: AN INTEGRATED MIDDLE DISTILLATE UPGRADING PROCESS AND UNIT ARE DISCLOSED. A MIDDLE DISTILLATE SIDE-STREAM 47 OF A CONVENTIONAL SINGLE STAGE HYDROCRAKING PROCESS IS CIRCULATED TO A HYDROTREATING STAGE SUCH AS AN AROMATICS SATURATION REACTOR AND/OR A CATALYTIC DEWAXING REACTOR TO EFFECT MIDDLE DISTILLATE UPGRADE 54. THE UPGRADED PRODUCT 54 IS THEN FINISHED IN A FRACTIONATION STAGE SIDE-STRIPPER 48 COLUMN. THE INTEGRATED HYDROTREATING REACTOR 88 CAN SHARE THE DUTY OF EXISTING HYDROCRACKER STAGE EQUIPMENT AND TAKE ADVANTAGE OF EXISTING PROCESS HEAT TO ELIMINATE THE NEED FOR MUCH OF THE EQUIPMENT GENERALLY REQUIRED BY A STAND-ALONE HYDROTREATING REACTOR OF THE PRIOR ART.
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公开(公告)号：MY114664A
公开(公告)日：2002-12-31
申请号：MYPI19950188
申请日：1995-01-26
Applicant: THE M W KELLOGG COMPANY
Inventor： KENNETH WILLIAM GOEBEL , MICHAEL GLENN HUNTER
Abstract: AN INTEGRATED THREE-COLUMN PROCESS FOR RECOVERING HYDROCARBON DISTILLATE PRODUCTS FROM A HYDROPROCESSING OR HYDROCRACKING REACTOR EFFLUENT STREAM AND A HYDROCARBON DISTILLATE PRODUCT RECOVERY TRAIN ARE DISCLOSED. ACCORDING TO THE PRESENT RECOVERY PROCESS, AN EFFLUENT STREAM FROM THE CRACKING REACTOR IS COOLED AND SEPARATED INTO LIGHT AND HEAVY PHASE STREAMS. THE HEAVY PHASE STREAM IS DEPRESSURIZED AND STRIPPED OF LIGHT END COMPONENTS IN A STEAM STRIPPING COLUMN. THE LIGHT PHASE STREAM IS FURTHER COOLED TO SEPARATE A LIQUID STREAM WHICH IS COMBINED WITH THE LIGHT ENDS FROM THE STRIPPER ANDFED TO A DEBUTANIZER. A C4-RICH LIGHT END STREAM TAKEN OVERHEAD FROM THE DEBUTANIZER IS CONDENSED TO PRODUCE PLG PRODUCT STREAM(S). A C4-LEAN HEAVY END STREAM REMOVED FROM THE BOTTOMS OF THE DEBUTANIZER IS COMBINED WITH A HEAVY END BOTTOMS STREAM FROM THE STRIPPER AND FED TO A FRACTIONATOR FOR FRACTIONATION INTO PRODUCT DISTILLATE STREAMS SUCH AS LIGHT AND HEAVY NAPHTHA, JET FUEL, DIESEL OIL, AND THE LIKE. A HEAVY OIL BOTTOMS STREAM RECOVERED FROM THE FRACTIONATOR IS RECYCLED BACK TO THE CRACKING REACTOR. FIGURE 1
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