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    FLUID CATALYTIC CRACKING PROCESS FOR CONVERTING A PLURALITY OF FEEDS
    1.
    发明公开
    FLUID CATALYTIC CRACKING PROCESS FOR CONVERTING A PLURALITY OF FEEDS 审中-公开
    流化催化裂化方法FOR几种刀片的实施

    公开(公告)号：EP1076680A1

    公开(公告)日：2001-02-21

    申请号：EP99914279.7

    申请日：1999-03-30

    申请人： ExxonMobil Research and Engineering Company

    发明人： HO, Teh, Chung ,  FUNG, Shun, Chong ,  STUNTZ, Gordon, Frederick ,  WELCH, Robert, Charles, William ,  LETA, Daniel, Paul

    IPC分类号： C10G11/18

    CPC分类号： C10G11/18

    摘要： The invention is directed to a Fluid Catalytic Cracking process conducted in a fluid catalytic cracking unit (FCCU) comprising one or more risers, each of said risers having a plurality of injection nozzles therein and at least one reaction zone therein comprising the steps of spatially nonuniformly injecting a plurality of feeds wherein said plurality of feeds comprises at least one feed (α) and at least another feed (β), wherein said feeds (α) and (β): (a) differ in Conradson Carbon Residue by at least about 2 wt.% points or (b) differ in hydrogen content by at least about 0.2 wt.%; or (c) differ in API gravities by at least about 2 points; or (d) differ in nitrogen content by at least about 50 ppm; or (e) differ in carbon-to-hydrogen ratio by at least about 0.3; or (f) differ in mean boiling point by at least about 200 °F; and wherein said spatially nonuniform injection is accomplished by (i) simultaneously injecting into a single reaction zone of a single riser said feed (α) from at least one injection nozzle of said riser and said feed (β) from the remaining nozzles of said riser; (ii) simultaneously injecting said feed (α) into at least one of said reaction zones of said riser of said FCCU and said feed (β) into another of said reaction zones of said riser of said FCCU; or (iii) simultaneously injecting said feed (α) into at least one riser of said FCCU and said feed (β) into a second riser of said FCCU. Wherein when said spatially nonuniform injection is accomplished by (iii), said feeds are substantially non-paraffinic feeds.

    OPERATING METHOD FOR FLUID CATALYTIC CRACKING
    7.
    发明公开
    OPERATING METHOD FOR FLUID CATALYTIC CRACKING 审中-公开
    一种用于操作催化裂解程序

    公开(公告)号：EP1114125A1

    公开(公告)日：2001-07-11

    申请号：EP99919918.5

    申请日：1999-04-20

    申请人： ExxonMobil Research and Engineering Company

    发明人： HO, Teh, Chung ,  FUNG, Shun, Chong ,  LETA, Daniel, Paul

    IPC分类号： C10G11/18

    CPC分类号： C10G11/18

    摘要： The present invention is directed to a Fluid Catalytic Cracking process conducted under fluid catalytic cracking conditions by injecting into at least one reaction zone of a fluid catalytic cracking unit (FCCU) having one or more risers, a plurality of feeds wherein said plurality of feeds comprises at least one feed (α) and at least another feed (β) wherein said feeds (α) and (β) (a) differ in Conradson Carbon Residue by at least about 2 wt % points; or (b) differ in hydrogen content by at least about 0.2 wt %; or (c) differ in API gravities by at least about 2 points; or (d) differ in nitrogen content by at least about 50 ppm; or (e) differ in carbon-to-hydrogen ratio by at least about 0.3; or (f) differ in mean boiling point by at least about 200 °F; and wherein said feeds (α) and (β) are alternately injected and wherein said alternate injection maintains said risers in a cyclic steady state, while the rest of the FCC unit is in a steady state.