Method and apparatus for fluid catalytic cracking

    公开(公告)号:US3619415A

    公开(公告)日:1971-11-09

    申请号:US3619415D

    申请日:1969-07-29

    Applicant: TEXACO INC

    CPC classification number: C10G11/18

    Abstract: This invention relates to an improved method and apparatus for fluid catalytic cracking of hydrocarbon oils, for example, virgin gas oils from petroleum sources and cycle gas oils from the cracking thereof. More particularly, this invention relates to fluid catalytic cracking of at least one feedstock in transfer line risers terminating in a multidiameter reactor-separator chamber with attendant stripping and regenerator of the catalyst.

    Fluid catalytic cracking
    5.
    发明授权
    Fluid catalytic cracking 失效
    流体催化裂化

    公开(公告)号:US3879281A

    公开(公告)日:1975-04-22

    申请号:US42688873

    申请日:1973-12-20

    Applicant: TEXACO INC

    CPC classification number: C10G11/18 B01J8/26 B01J37/14

    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.

    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; 其中催化剂和油蒸气从提升管连续排放到反应容器中; 并且其中反应容器与汽提区连通,使得废催化剂流入汽提区。 在操作中,选择的催化剂库存在反应容器中处于流化状态。 通过响应于汽提区和反应器容器之间的压力差的方式来维持反应器容器中的这种选择的催化剂库存。 还提供了用于控制这种压力差并因此调节反应器容器中的催化剂存量的装置。

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