A TUBE TYPE CRACKING FURNACE
    1.
    发明公开
    A TUBE TYPE CRACKING FURNACE 审中-公开
    RÖHRENSPALTOFEN

    公开(公告)号:EP2133644A1

    公开(公告)日:2009-12-16

    申请号:EP08715068.6

    申请日:2008-03-28

    IPC分类号: F28F13/12 C10G9/20

    摘要: This invention relates to a tubular cracking furnace, especially an ethylene cracking furnace, which comprises a convection section and a or dual radiant section(s), at least one heat transfer intensifying member arranged in at least one pass each radiant tube in said radiant section, said at least one heat transfer intensifying member comprises a first heat transfer intensifying member, which is arranged at a location between 10D and 25D upstream of the extreme point of said at least one pass radiant tube metal temperature, wherein D is the inner diameter of the radiant tube having heat transfer intensifying members. The present invention could achieve the best enhanced heat transfer result with given number of heat transfer intensifying member, by optimizing the locations of heat transfer intensifying members in the radiant tube.

    摘要翻译: 本发明涉及一种管状裂解炉,特别是乙烯裂解炉,其包括对流段和一个或两个辐射区,至少一个传热增强构件,其至少一个通路布置在所述辐射段内的每个辐射管 所述至少一个传热增强构件包括第一传热增强构件,其被布置在所述至少一个通过辐射管金属温度的极限点上游的10D和25D之间的位置,其中D是 辐射管具有传热增强构件。 通过优化辐射管中的传热增强构件的位置,本发明可以通过给定数量的传热增强构件实现最佳增强的传热结果。

    METHOD AND SYSTEM FOR DIRECTLY CRACKING CRUDE OIL TO PREPARE OLEFIN

    公开(公告)号:EP4053248A1

    公开(公告)日:2022-09-07

    申请号:EP20881277.6

    申请日:2020-10-28

    IPC分类号: C10G9/14 C10G55/00

    摘要: The present invention relates to a method and system for cracking crude oil. The method comprises: delivering the crude oil to a first tube group of a convection section of a cracking furnace for preheating and then performing vaporization to obtain a first gas phase and a first liquid phase; performing high-pressure extraction on the first liquid phase to obtain a non-asphalt oil and an asphalt; and mixing the first gas phase and the non-asphalt oil with water vapor respectively, or mixing the first gas phase with the non-asphalt oil prior to mixing with water vapor, then delivering the same to a second tube group of the convection section of the cracking furnace for heating, followed by delivering same to a radiation section of the cracking furnace for cracking to obtain a cracked product, and separating the cracked product to obtain low-carbon olefins. In the present invention, after the crude oil is preheated in a cracking furnace and vaporized, the obtained gas phase is passed into the cracking furnace, and the obtained liquid phase is passed through a supercritical extraction unit to separate an extract oil, which is then passed into the cracking furnace The method can effectively improve cracking efficiency of the crude oil, improve the yield of low-carbon olefins in the product, extend the operating cycle, and reduce coking of a gasified crude oil mixture in a cracking process.

    METHOD FOR PROCESSING OLEFINS
    9.
    发明公开
    METHOD FOR PROCESSING OLEFINS 有权
    VERFAHREN ZUR VERARBEITUNG VON OLEFINEN

    公开(公告)号:EP2172440A1

    公开(公告)日:2010-04-07

    申请号:EP08783535.1

    申请日:2008-07-18

    IPC分类号: C07C4/02 C07C11/02

    CPC分类号: C10G35/09 C10G11/05 C10G11/18

    摘要: The present invention discloses a process for producing olefins from petroleum saturated hydrocarbons. The process of the present invention comprises: contacting a preheated petroleum saturated hydrocarbons feedstock with a dehydrogenation catalyst in a dehydrogenation reaction zone of a reaction system to obtain a petroleum hydrocarbon stream containing unsaturated hydrocarbon compounds, in which the dehydrogenation reaction has a conversion rate of at least 20%; and contacting the obtained petroleum hydrocarbon stream containing the unsaturated hydrocarbon compounds with olefins cracking catalyst in an olefin cracking zone of the reaction system to obtain a product stream containing olefins with a reduced number of carbon atoms.

    摘要翻译: 本发明公开了一种从石油饱和烃生产烯烃的方法。 本发明的方法包括:使预热的石油饱和烃原料与脱氢催化剂在反应体系的脱氢反应区中接触,以获得含有不饱和烃化合物的石油烃流,其中脱氢反应的转化率为 至少20%; 并将所得到的含有不饱和烃化合物的石油烃物流与烯烃裂解催化剂在反应体系的烯烃裂化区中接触,得到含有碳原子数减少的烯烃的产物流。