Ethylene plant refrigeration system

    公开(公告)号:US11313619B2

    公开(公告)日:2022-04-26

    申请号:US16473155

    申请日:2017-12-14

    Abstract: A refrigeration system for cooling a charge gas by a binary refrigerant. The refrigeration system comprises n heat exchangers, n compressor stages, at least one separator and a demethanizer. By flowing depressurized refrigerant through all the subsequent heat exchangers and installing interstage coolers, the overall energy for the refrigeration system is reduced.

    Steam reforming process
    12.
    发明授权

    公开(公告)号:US11021365B2

    公开(公告)日:2021-06-01

    申请号:US16333746

    申请日:2017-08-29

    Abstract: Steam reforming system having a steam cracker and a steam reformer. The steam cracker includes a steam cracking unit to steam crack a feed stream to produce a stream comprising hydrogen, methane and C2+ hydrocarbons; a heat exchanger for cooling the steam cracking product stream; a separation unit for separating the cooled steam cracking product stream into a gas stream including hydrogen and methane and a liquid stream including methane and C2+ hydrocarbons, a demethanizer which is fed the liquid stream producing a third stream containing at least 95% methane and a fourth stream comprising C2+ hydrocarbons. The steam reformer includes a feed preheater which is fed the third stream and steam to provide a preheated stream and a steam reforming unit arranged for heating the preheated stream to at least 800° C. to steam reforming the heated stream and obtain a product stream containing hydrogen and CO2.

    A METHOD FOR HEATING CRUDE
    14.
    发明申请
    A METHOD FOR HEATING CRUDE 有权
    一种加热原料的方法

    公开(公告)号:US20170009145A1

    公开(公告)日:2017-01-12

    申请号:US15120880

    申请日:2014-12-23

    Abstract: A method for heating one or more streams from a refinery process, chosen from the group of crude tower inlet, vacuum tower inlet, catalytic reformer inlet, coker inlet, thermal cracker inlet and hydrocracker inlet. The method includes transferring, in a heat exchanger, heat from one or more streams from a petro-chemistry process, chosen from the group of a steam cracker charge gas, propane dehydrogenation charge gas and butane dehydrogenation charge gas to said one or more streams from a refinery process for obtaining one or more heated streams in which the temperature of said one or more streams from petro-chemistry process is above the temperature of said one or more streams from a refinery process before said step of heat exchanging has taken place.

    Abstract translation: 一种从精炼工艺中加热一个或多个流的方法,选自粗塔塔入口,真空塔入口,催化重整器入口,焦化器入口,热裂解器入口和加氢裂化器入口。 该方法包括在热交换器中将来自石油化学过程的一种或多种流的热量从蒸汽裂化装料装料气体,丙烷脱氢装料气和丁烷脱氢装料气体组中转移到所述一种或多种流 一种用于获得一种或多种加热流的炼油方法,其中来自石油化学过程的所述一种或多种料流的温度高于在所述热交换步骤之前的炼油工艺的所述一种或多种料流的温度。

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