Process for improving the production of benzene and toluene

    公开(公告)号:US11453829B2

    公开(公告)日:2022-09-27

    申请号:US16767939

    申请日:2018-11-16

    IPC分类号: C10G59/06 C10G59/00

    摘要: The invention relates to a process for the production of C6-C7 aromatic compounds from a hydrocarbon feedstock of naphtha type comprising a step of fractionating (2) the feedstock in order to obtain an upper stream and a lower stream, a step of catalytic reforming of the upper stream (6) and of the lower stream (9), a step of recombining (15) the reformate effluents obtained, a step of recontacting (16) and a step of stabilizing (19) the stabilized reformate effluents and a step of separating (22) the raffinate in order to recover C6 and C7 hydrocarbon compounds.

    Optimized reactor configuration for optimal performance of the aromax catalyst for aromatics synthesis

    公开(公告)号:US11149211B2

    公开(公告)日:2021-10-19

    申请号:US16860638

    申请日:2020-04-28

    摘要: A naphtha reforming reactor system comprising a first reactor comprising a first inlet and a first outlet, wherein the first reactor is configured to operate as an adiabatic reactor, and wherein the first reactor comprises a first naphtha reforming catalyst; and a second reactor comprising a second inlet and a second outlet, wherein the second inlet is in fluid communication with the first outlet of the first reactor, wherein the second reactor is configured to operate as an isothermal reactor, and wherein the second reactor comprises a plurality of tubes disposed within a reactor furnace, a heat source configured to heat the interior of the reactor furnace; and a second naphtha reforming catalyst disposed within the plurality of tubes, wherein the first naphtha reforming catalyst and the second naphtha reforming catalyst are the same or different.

    Paraxylene production from naphtha feed

    公开(公告)号:US10941356B2

    公开(公告)日:2021-03-09

    申请号:US16454839

    申请日:2019-06-27

    发明人: Yufeng He Qi Xu

    摘要: Increased paraxylene production through the use of a split feed reforming process, wherein hydrotreated naphtha is split into light, middle and heavy fractions. Each fraction is reformed separately to generate streams containing aromatic compounds. These streams can further be processed and can undergo dealkylation, transalkylation, disproportionation, isomerization, and separation steps to maximize paraxylene production. In addition, some streams are recycled or recombined in order to maximize paraxylene production.

    PROCESS AND APPARATUS FOR PRODUCING GASOLINE
    6.
    发明申请
    PROCESS AND APPARATUS FOR PRODUCING GASOLINE 审中-公开
    生产汽油的工艺和装置

    公开(公告)号:US20100012552A1

    公开(公告)日:2010-01-21

    申请号:US12176290

    申请日:2008-07-18

    IPC分类号: C10G59/00 B01J19/00

    摘要: One exemplary embodiment can be a process for producing a gasoline. The process can include contacting a feed having a naphtha and recycling at least a portion of the reaction zone effluent to the one or more reforming reaction zones. Generally, the reformate includes no more than about 15%, by volume, benzene, with a UZM-8 catalyst in one or more reforming reaction zones to produce a reaction zone effluent.

    摘要翻译: 一个示例性实施方案可以是用于生产汽油的方法。 该方法可以包括使具有石脑油的进料接触并将至少一部分反应区流出物再循环到一个或多个重整反应区。 通常,重整产物在一个或多个重整反应区中包含不超过约15体积%的含有UZM-8催化剂的苯,以产生反应区流出物。

    Motor fuel production process
    7.
    发明授权
    Motor fuel production process 失效
    电动机燃料生产过程

    公开(公告)号:US3776837A

    公开(公告)日:1973-12-04

    申请号:US3776837D

    申请日:1971-10-20

    申请人: SHELL OIL CO

    CPC分类号: C10G27/00 C10G59/00 C10L1/06

    摘要: HIGH AROMATIC CONTENT MOTOR FUEL IS PRODUCED FROM C5-C8+ NAPHTHA BY SEPARATING THE NAPHTHA INTO A C5-C6 CUT, A SEPARATE C7 CUT AND A C8+ CUT; CATALYTICALLY DEHYDROCYCLIZING THE C7 CUT; CATALYTICALLY REFORMING THE C8+ CUT; AND THEREAFTER COMBINING THE THREE FRACTIONS. IN PREFERRED MODES OF OPERATION, THE C7 CUT IS ALSO SUBJECTED TO CATALYTIC REFORMATION AND THE C5-C6 CUT IS ISOMERIZED BEFORE COMBINATION WITH THE OTHER HYDROCARBON FRACTIONS.