Process for producing alkylated aromatic hydrocarbons from a mixed hydrocarbon feedstream

    公开(公告)号:US10065904B2

    公开(公告)日:2018-09-04

    申请号:US15506429

    申请日:2015-08-27

    Abstract: The invention relates to a process for producing alkylated aromatic hydrocarbons comprising the steps of: (a) subjecting a mixed hydrocarbon feedstream comprising benzene to a separation to provide a C6 cut comprising benzene, wherein the C6 cut comprises at least 60 wt-% of C6 hydrocarbons; (b) subjecting the C6 cut to catalytic cracking or thermal cracking to provide a cracking product stream comprising benzene and C2-C4 alkenes and (c) after step (b), without pre-separation of the cracking product stream, subjecting the cracking product stream to conditions suitable for alkylation to provide an alkylation product stream rich in alkylated aromatic hydrocarbons, wherein the process further comprises the steps of separating benzene and benzene coboilers from the alkylation product stream to obtain a stream of benzene and benzene coboilers and wherein the stream of benzene and benzene coboilers is separated into a benzene-rich stream comprising a higher proportion of benzene than the stream of benzene and benzene coboilers and a benzene-lean stream comprising a lower proportion of benzene than the stream of benzene and benzene coboilers and wherein the benzene-lean stream is recycled back to the catalytic cracking or thermal cracking in step (b).

    PROCESS AND INSTALLATION FOR THE CONVERSION OF CRUDE OIL TO PETROCHEMICALS HAVING AN IMPROVED PROPYLENE YIELD
    24.
    发明申请
    PROCESS AND INSTALLATION FOR THE CONVERSION OF CRUDE OIL TO PETROCHEMICALS HAVING AN IMPROVED PROPYLENE YIELD 审中-公开
    将原油转化为具有改进的丙烯的石油化学品的处理和安装

    公开(公告)号:US20160368838A1

    公开(公告)日:2016-12-22

    申请号:US14901852

    申请日:2014-06-30

    Abstract: The present invention relates to an integrated process to convert crude oil into petrochemical products comprising crude oil distillation, aromatic ring opening, and olefins synthesis, which process comprises subjecting a hydrocarbon feed to aromatic ring opening to produce LPG and subjecting the LPG produced in the integrated process to olefins synthesis. Furthermore, the present invention relates to a process installation to convert crude oil into petrochemical products comprising a crude distillation unit comprising an inlet for crude oil and at least one outlet for kerosene and/or gasoil; an aromatic ring opening unit comprising an inlet for a hydrocarbon feed to aromatic ring opening and an outlet for LPG; and a unit for the olefins synthesis comprising an inlet for LPG produced by the integrated petrochemical process installation and an outlet for olefins. The hydrocarbon feed subjected to aromatic ring opening comprises kerosene and/or gasoil produced by crude oil distillation in the process; and refinery unit-derived middle-distillate produced in the process. The process and the process installation of the present invention have an increased production of petrochemicals at the expense of the production of fuels and an improved propylene yield.

    Abstract translation: 本发明涉及将原油转化成包括原油蒸馏,芳族开环和烯烃合成的石油化学产品的综合方法,该方法包括使烃进料进入芳族开环以产生LPG,并使所生成的LPG 烯烃合成工艺。 此外,本发明涉及一种将原油转化成石油化学产品的方法设备,其包括含有原油入口和至少一个用于煤油和/或油油的出口的粗蒸馏单元; 芳香族开环单元,其包括用于烃进料到芳环开口的入口和用于LPG的出口; 以及用于烯烃合成的单元,其包括由综合石化工艺装置生产的用于LPG的入口和用于烯烃的出口。 进行芳环开环的烃进料包括在该过程中通过原油蒸馏生产的煤油和/或油油; 以及在该过程中生产的炼油厂单元产生的中间馏分。 本发明的方法和方法的安装以牺牲燃料生产和改进的丙烯产率为代价增加了石化产品的生产。

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