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公开(公告)号：US3826624A
公开(公告)日：1974-07-30
申请号：US27661972
申请日：1972-07-31
Applicant: TEXACO INC
CPC classification number: C10G11/18 , B01J8/26 , Y10T137/7838 , Y10T137/7903
Abstract: A FLUID CATALYTIC CRACKING UNIT WHEREIN THE REACTION ZONE COMPRISES ONE OR MORE RISERS AND A REACTION VESSEL; WHEREIN CATALYST AND OIL VAPORS CONTINUALLY DISCHARGE FROM THE RISERS INTO THE REACTION VESSEL; AND WHEREIN THE REACTION VESSEL IS IN COMMUNICATION WITH A STRIPPING ZONE SUCH THAT SPENT CATALYST FLOWS INTO THE STRIPPING ZONE. IN OPERATION, A SELECTED INVENTORY OF CATALYST IS MAINTAINED IN A FLUIDIZED STATE IN THE REACTION VESSEL. SUCH SELECTED CATALYST INVENTORY IN THE REACTOR VESSEL IS MAINTAINED BY MEANS RESPONSIVE TO THE PRESSURE DIFFERENTIAL BETWEEN THE STRIPPING ZONE AND THE REACTOR VESSEL. MEANS ARE ALSO PROVIDED FOR CONTROLLING SUCH PRESSURE DIFFERENTIAL AND THEREBY ADJUSTING CATALYST INVENTORY IN THE REACTOR VESSEL.
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公开(公告)号：US3751359A
公开(公告)日：1973-08-07
申请号：US3751359D
申请日：1971-09-27
Applicant: TEXACO INC
Inventor： BUNN D
CPC classification number: B01J8/1809 , B01J2208/0053 , B01J2208/00548 , B01J2208/0061 , C10G11/18 , C10G11/187 , Y10S208/01
Abstract: A FLUIDIZED CATALYSTIC CRACKING PROCESS FOR THE CONVERSION OF HYDROCARBONS COMPRISING A REACTION ZONE, A REGENERATION ZONE AND A PRODUCT FRACTIONATION ZONE. A SELECTED PRODUCT DISTRIBUTION, SUCH AS BETWEEN GASOLINE AND LIGHT CYCLE GAS-OIL, IS MAINTAINED BY RECOVERING LIGHT CYCLE GAS-OIL AT A SELCTED RATE FROM THE PRODUCT FRACTIONATION ZONE, AND CONTROLLING HYDROCARBON CONVERSION IN THE REACTION ZONE TO MAINTAIN A SET RATE FOR A HEAVY CYCLE GASOIL RECYCLE STREAM. THE GASOLINE PRODUCT IS RECOVERED FROM THE PRODUCT FRACTIONATION ZONE AT THE RATE IT IS PRODUCED. PROCESS CONTROL MEANS FOR OPERATING THE PROCESS IN THE ABOVE MANNER ARE DISCLOSED.
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Patent Agency Ranking
公开(公告)号：US3841843A
公开(公告)日：1974-10-15
申请号：US31576972
申请日：1972-12-18
Applicant: TEXACO INC
Inventor： WILLIAMS D , BUNN D
CPC classification number: C10G11/18 , B01J8/0025 , B01J8/1872
Abstract: An apparatus for fluid catalytic cracking of hydrocarbons including an elongated confined reaction conduit comprising an elongated riser having catalyst and hydrocarbon introduction means at the lower end thereof, a flow reversal means connected to the upper end of said riser for reversing the flow direction of catalyst and hydrocarbons exiting said riser, and a downcomer forming an annular space around an upper portion of said riser for receiving catalyst and hydrocarbons from said flow reversal means and conveying them downward into a reaction vessel. Reaction methods and process conditions are given for use with the disclosed apparatus.
Abstract translation: 一种用于烃的流化催化裂化装置，包括细长的限制反应管道，其包括在其下端具有催化剂和烃引入装置的细长提升管，连接到所述提升管的上端的反向装置，用于反转催化剂的流动方向， 离开所述提升管的烃和降液管围绕所述提升管的上部形成环形空间，用于从所述流动反转装置接收催化剂和烃，并将其向下输送到反应容器中。 给出了与所公开的装置一起使用的反应方法和工艺条件。
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公开(公告)号：US3799864A
公开(公告)日：1974-03-26
申请号：US32003673
申请日：1973-01-02
Applicant: TEXACO INC
Abstract: A FLUIDIZED CATALYTIC CRACKING PROCESS EMPLOYING MULTIPLE ELONGATED RISER REACTION ZONES WHEREIN A CHARGE STOCK, COMPRISING A LIGHT FRACTION BOILING IN THE 400-650* F. RANGE AND HAVING A POUR POINT OF +10* F. OR HIGHER AND A HEAVY FRACTION BOILING ABOVE 650* F., IS CONVERTED TO PRODUCE SUBSTANTIAL YIELDS OF HIGH OCTANE DEBUTANIZED NAPHTHA AND LIGHT CYCLE GAS OIL BOILING IN 400-650* F. RANGE AND HAVING A POUR POINT OF 0* F. OR LESS. THE LIGHT FRACTION IS SEPARATELY CRACKED IN A SECOND RISER REACTION ZONE ZONE AT HIGH TEMPERATURE AND HIGH CONVERSION FOR CONTROL OF LIGHT CYCLE GAS OIL PRODUCT POUR POINT. THE HEAVY FRACTION IS SEPARATELY CRACKED IN A SECOND RISER REACTION ZONE AT MODERATE TEMPERATURE AND MODERATE CONVERSION FOR CONTROL OF NAPHTHA TO LIGHT CYCLE GAS OIL PRODUCT RATIO.
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公开(公告)号：US3784463A
公开(公告)日：1974-01-08
申请号：US3784463D
申请日：1970-10-02
Applicant: TEXACO INC
Inventor： REYNOLDS D , PRATT R , YOUNGBLOOD D , BUNN D
CPC classification number: C10G11/18 , Y10S208/02
Abstract: Low octane naphtha and fresh gas oil are catalytically cracked with a zeolite catalytic cracking catalyst in separate elongated reaction zones yielding a naphtha having an increased octane rating. Recovering a naphtha fraction, particularly a heavy naphtha fraction, from the cracked product, and combining it with the fresh naphtha feed, further enhances the octane rating of the naphtha product. A cycle gas oil may be recovered from the reactor effluent and combined with the fresh naphtha feed or introduced into a separate (a third) elongated reaction zone to effect maximum recovery of naphtha and lighter stocks having improved product quality. Optionally, any of the feedstocks may be subjected to further cracking in a dense bed of the zeolite catalyst.
Abstract translation: 低辛烷值的石脑油和新鲜瓦斯油在分离的细长反应区域中用沸石催化裂化催化剂进行催化裂化，产生具有提高的辛烷值的石脑油。 从裂化产物中回收石脑油馏分，特别是重质石脑油馏分，并将其与新鲜石脑油进料相结合，进一步提高了石脑油产品的辛烷值。 循环瓦斯油可以从反应器流出物中回收并与新鲜的石脑油进料混合或引入到单独的（第三个）细长的反应区中，从而最大限度地回收具有改进的产品质量的石脑油和更轻的原料。 任选地，任何原料可能在沸石催化剂的致密床中进一步裂化。
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公开(公告)号：US3784360A
公开(公告)日：1974-01-08
申请号：US3784360D
申请日：1971-09-20
Applicant: TEXACO INC
CPC classification number: C10G11/18 , B01J8/28 , Y10T137/7838 , Y10T137/7903
Abstract: A fluid catalytic cracking apparatus wherein the reaction zone comprises one or more risers and a reaction vessel. A constant inventory of catalyst is maintained in a fluidized state in the reaction vessel and catalyst is continuously withdrawn from the reaction at a rate equal to the rate catalyst enters the reaction vessel. An improved catalyst check valve connecting the reaction vessel and stripping zone controls the catalyst inventory and catalyst withdrawal rate.
Abstract translation: 流化催化裂化装置，其中反应区包括一个或多个立管和反应容器。 在反应容器中维持催化剂的恒定存量，处于流化状态，催化剂以等于催化剂进入反应容器的速率从反应中连续取出。 连接反应容器和汽提区的改进的催化剂止回阀控制催化剂的存量和催化剂的提取率。
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7.发明授权Igh octane gasoline combination cracking process for converting paraffinic naphtha into h 失效IGH OCTANE GASOLINE组合破碎过程，将PARAFFINIC NAPHTHA转换成H
公开(公告)号：US3758628A
公开(公告)日：1973-09-11
申请号：US3758628D
申请日：1971-12-20
Applicant: TEXACO INC
Inventor： STRICKLAND J , BUNN D
Abstract: A process for manufacturing high octane gasoline from a low octane paraffinic naphtha, which comprises hydrocracking a first portion of the naphtha to yield a C4 fraction comprising isobutane and a hydrocracked light naphtha fraction having a relatively high octane number, catalytically cracking a second portion of the naphtha to yield a C3-C4 fraction comprising propylene, butylenes and isobutane and a catalytically cracked light naphtha fraction having a relatively high octane number, and reacting, in an alkylation zone the hydrocracked C4 fraction and the catalytically cracked C3-C4 fraction to yield a high octane gasoline alkylate. The proportion of naphtha charged to the hydrocracking zone and the catalytic cracking zone are adjusted such that isobutane, butylene and propylene charge to the alkylation zone are in stoichiometric balance.
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