Process and apparatus for para-xylene production
    5.
    发明授权
    Process and apparatus for para-xylene production 有权
    对二甲苯生产的工艺和设备

    公开(公告)号:US08283510B2

    公开(公告)日:2012-10-09

    申请号:US13169870

    申请日:2011-06-27

    IPC分类号: C07C7/17 C07C5/52

    摘要: A process of producing PX comprising providing a C8+ feedstock, the C8+ feedstock has C8 hydrocarbons and C9+ hydrocarbons, to a crystallization unit under crystallization conditions to produce a PX enriched stream having a PX concentration of at least 99.5 wt % based on the weight of the PX enriched stream, wherein the C8+ feedstock has a PX concentration of at least 70 wt % based on total weight of xylenes in the C8+ feedstock, which the C8+ feedstock having a C9+ hydrocarbons concentration in a range from 1 wppm to 10 wt % based on the total weight of the C8+ feedstock.

    摘要翻译: 一种生产PX的方法,其包括在结晶条件下向C8结晶单元提供C8 +原料,C8 +原料具有C8烃和C9 +烃,以产生PX浓度为至少99.5重量% PX富集流,其中基于C8 +原料中二甲苯的总重量,C8 +原料的PX浓度为至少70重量%,其中C8 +原料具有在1wppm至10wt%范围内的C 9+烃浓度,基于 C8 +原料的总重量。

    Aromatic Hydrocarbon Purification Method
    6.
    发明申请
    Aromatic Hydrocarbon Purification Method 失效
    芳烃净化方法

    公开(公告)号:US20110060177A1

    公开(公告)日:2011-03-10

    申请号:US12871706

    申请日:2010-08-30

    IPC分类号: C07C15/04

    摘要: In a process for reducing the amount of benzene produced in a startup procedure for purification of an aromatic feedstream, the improvement comprising a start-up procedure including contacting said catalyst with said feedstream at elevated LHSV for a period of time sufficient to reduce benzene and/or toluene levels to a predetermined level, and proceeding under normal operational conditions.

    摘要翻译: 在用于降低芳族原料流净化的起动方法中产生的苯的量的方法中,改进包括启动程序,包括使升高的LHSV下的所述催化剂与所述进料流接触足够时间以减少苯和/ 或甲苯水平达到预定水平,并在正常操作条件下进行。

    Process and Apparatus for Para-Xylene Production
    7.
    发明申请
    Process and Apparatus for Para-Xylene Production 有权
    对二甲苯生产工艺及装置

    公开(公告)号:US20080249345A1

    公开(公告)日:2008-10-09

    申请号:US12042433

    申请日:2008-03-05

    IPC分类号: C07C2/54 B01J19/00

    摘要: A process of producing PX comprising providing a C8+ feedstock, the C8+ feedstock has C8 hydrocarbons and C9+ hydrocarbons, to a crystallization unit under crystallization conditions to produce a PX enriched stream having a PX concentration of at least 99.5 wt % based on the weight of the PX enriched stream, wherein the C8+ feedstock has a PX concentration of at least 70 wt % based on total weight of xylenes in the C8+ feedstock, which the C8+ feedstock having a C9+ hydrocarbons concentration in a range from 1 wppm to 10 wt % based on the total weight of the C8+ feedstock.

    摘要翻译: 一种生产PX的方法,包括提供C 8+原料,C 8+原料具有C 8 C 8烃和C 9+ / SO 2 +烃在结晶条件下转化为结晶单元,以产生基于富含PX的料流的重量,PX浓度为至少99.5重量%的PX富集的料流,其中C 8 +原料的PX浓度为至少70重量%,基于C 8 N +原料中二甲苯的总重量,其中C 8 N +原料具有C 9+烃浓度在1Wppm至10wt%的范围内,基于C 8+ +原料的总重量。

    Process and Apparatus for Para-Xylene Production
    9.
    发明申请
    Process and Apparatus for Para-Xylene Production 有权
    对二甲苯生产工艺及装置

    公开(公告)号:US20110257456A1

    公开(公告)日:2011-10-20

    申请号:US13169870

    申请日:2011-06-27

    IPC分类号: C07C7/14

    摘要: A process of producing PX comprising providing a C8+ feedstock, the C8+ feedstock has C8 hydrocarbons and C9+ hydrocarbons, to a crystallization unit under crystallization conditions to produce a PX enriched stream having a PX concentration of at least 99.5 wt % based on the weight of the PX enriched stream, wherein the C8+ feedstock has a PX concentration of at least 70 wt % based on total weight of xylenes in the C8+ feedstock, which the C8+ feedstock having a C9+ hydrocarbons concentration in a range from 1 wppm to 10 wt % based on the total weight of the C8+ feedstock.

    摘要翻译: 一种生产PX的方法,其包括在结晶条件下向C8结晶单元提供C8 +原料,C8 +原料具有C8烃和C9 +烃,以产生PX浓度为至少99.5重量% PX富集流,其中基于C8 +原料中二甲苯的总重量,C8 +原料的PX浓度为至少70重量%,其中C8 +原料具有在1wppm至10wt%范围内的C 9+烃浓度,基于 C8 +原料的总重量。

    Process and apparatus for para-xylene production
    10.
    发明授权
    Process and apparatus for para-xylene production 有权
    对二甲苯生产的工艺和设备

    公开(公告)号:US08502008B2

    公开(公告)日:2013-08-06

    申请号:US13608628

    申请日:2012-09-10

    IPC分类号: C07C7/17 C07C5/52

    摘要: A process of producing PX comprising providing a C8+ feedstock, the C8+ feedstock has C8 hydrocarbons and C9+ hydrocarbons, to a crystallization unit under crystallization conditions to produce a PX enriched stream having a PX concentration of at least 99.5 wt % based on the weight of the PX enriched stream, wherein the C8+ feedstock has a PX concentration of at least 70 wt % based on total weight of xylenes in the C8+ feedstock, which the C8+ feedstock having a C9+ hydrocarbons concentration in a range from 1 wppm to 10 wt % based on the total weight of the C8+ feedstock.

    摘要翻译: 一种生产PX的方法,其包括在结晶条件下向C8结晶单元提供C8 +原料,C8 +原料具有C8烃和C9 +烃,以产生PX浓度为至少99.5重量% PX富集流,其中基于C8 +原料中二甲苯的总重量,C8 +原料的PX浓度为至少70重量%,其中C8 +原料具有在1wppm至10wt%范围内的C 9+烃浓度,基于 C8 +原料的总重量。