METHOD AND APPARATUS FOR DESULFURIZATION AND SEPARATION OF CATALYTICALLY CRACKED LIGHT PRODUCT

    公开(公告)号:EP4053250A1

    公开(公告)日:2022-09-07

    申请号:EP20882534.9

    申请日:2020-10-30

    IPC分类号: C10G49/22 C10G67/02

    摘要: Disclosed is a method and an apparatus for the desulfurization and separation of a catalytic cracking light product, the method comprising the steps of: 1) contacting a catalytic cracking light product with a desulfurization adsorbent in an adsorption desulfurization reaction unit in the presence of hydrogen for desulfurization, and optionally carrying out gas-liquid separation on the resulting desulfurization product, to obtain a desulfurized rich gas and a desulfurized crude gasoline, wherein the catalytic cracking light product is an overhead oil-gas fraction from a catalytic cracking fractionator, or a rich gas and a crude gasoline from a catalytic cracking fractionator; and 2) separately sending the desulfurized rich gas and the desulfurized crude gasoline obtained in the step 1) to a catalytic cracking absorption stabilization system for separation, to obtain a desulfurized dry gas, a desulfurized liquefied gas and a desulfurized stabilized gasoline. The method and the apparatus are suitable for use in the treatment of a catalytic cracking light product obtained from a catalytic cracking fractionator, and a high yield of refined gasoline and a low octane value loss can be obtained.

    CATALYTIC CONVERTING PROCESS FOR PRODUCING PROLIFICALLY DIESEL OIL AND LIQUEFIED GAS
    4.
    发明公开
    CATALYTIC CONVERTING PROCESS FOR PRODUCING PROLIFICALLY DIESEL OIL AND LIQUEFIED GAS 有权
    KATALYTISCHES UMWANDLUNGSVERFAHREN ZUR HERSTELLUNG VONDIESELÖLUNDVERFLÜSSIGTEMGAS

    公开(公告)号:EP1205530A1

    公开(公告)日:2002-05-15

    申请号:EP00938463.7

    申请日:2000-06-20

    IPC分类号: C10G11/18

    CPC分类号: C10G11/18

    摘要: A process for catalytic cracking hydrocarbon stocks to increase simultaneously the yields of diesel oil and liquefied gas, carrying out in a riser or fluidized-bed reactor, which comprises:

    (a) Gasoline stock, an optional pre-lifting medium, and a catalytic cracking catalyst are charged into the bottom of the reactor and they contact in the lower zone of the reactor to produce an oil-gas mixture with a lot of liquefied gases;
    (b) The resultant oil-gas mixture and the reacted catalyst from step (a) flow upwardly and contact in the upper zone of the reactor conventional catalytic cracking feed entered, the reactor from at least two sites having different heights higher than the lower part of on the reactor, to produce an oil-gas mixture with a lot of diesel oils;
    (c) The resultant oil-gas mixture from step (b) enters a fractionation system where it is separated into the desired liquefied gas, gasoline and diesel oil products, heavy cycle oil and slurry are optionally circulated back to the reactor;
    (d) The spent catalyst may pass steam stripping and enters a regenerator and undergoes coke-burning and then is circulated back for reuse.
       The process can simultaneously increase the yields of liquefied gas and diesel oil, reduce the sulfur and olefin contents in the gasoline and raise the octane number. It can be carried out in an existing catalytic cracking unit which need not to be refitted in a big way.

    摘要翻译: 一种用于催化裂化烃原料的方法,以同时提高在提升管或流化床反应器中进行的柴油和液化气的产率,其包括:(a)汽油原料,任选的预提升介质和催化裂化 将催化剂装入反应器的底部,并在反应器的下部区域接触以产生具有大量液化气体的油气混合物; (b)所得到的油 - 气混合物和步骤(a)的反应催化剂向上流动并在反应器的上部区域接触进入的常规催化裂化进料,反应器至少有两个位置高于下部 在反应器上生产与大量柴油的油气混合物; (c)来自步骤(b)的所得油 - 气混合物进入分馏系统,其中将其分离成所需的液化气体,汽油和柴油产物,重循环油和浆料任选地循环回反应器; (d)废催化剂可以通过蒸汽汽提并进入再生器并经历焦烧,然后循环回来重新使用。 该方法可以同时提高液化气和柴油的产率,降低汽油中的硫和烯烃含量,提高辛烷值。 它可以在现有的催化裂化装置中进行,不需要大的改装。