Aromatics Co-Production in a Methanol-To-Propylene Unit
    21.
    发明申请
    Aromatics Co-Production in a Methanol-To-Propylene Unit 有权
    甲醇 - 丙烯单元中的芳烃共生产

    公开(公告)号:US20080161620A1

    公开(公告)日:2008-07-03

    申请号:US11955610

    申请日:2007-12-13

    摘要: The present invention provides a reactor system having: (1) a first reactor receiving an oxygenate component and a hydrocarbon component and capable of converting the oxygenate component into a light olefin and the hydrocarbon component into alkyl aromatic compounds; (2) a separator system for providing a first product stream containing a C3 olefin, a second stream containing a C7 aromatic, and a third stream containing C8 aromatic compounds; (3) a first line connecting the separator to the inlet of the first reactor for conveying the second stream to the first reactor; (4) a second line in fluid communication with the separator system for conveying the C3 olefin to a propylene recovery unit, and (4) a third line in fluid communication with the separator system for conveying the C8 aromatic compounds to a xylene recovery unit.

    摘要翻译: 本发明提供了一种反应器系统,其具有:(1)第一反应器,其接收含氧化合物组分和烃组分,并且能够将含氧化合物组分转化为轻质烯烃并将烃组分转化为烷基芳族化合物; (2)一种分离器系统,用于提供含有C 3 O 3烯烃的第一产物流,含有C 7芳族的第二料流和含有C 3 O 3芳烃的第三料流, 8芳族化合物; (3)将分离器连接到第一反应器的入口的第一管线,用于将第二流输送到第一反应器; (4)与用于将C 3 O 3烯烃输送到丙烯回收单元的分离器系统流体连通的第二管线,以及(4)与分离器系统流体连通的第三管线,用于输送C 将芳香族化合物加入到二甲苯回收装置中。

    Conversion of an alcoholic oxygenate to propylene using moving bed technology and an etherification step
    22.
    发明授权
    Conversion of an alcoholic oxygenate to propylene using moving bed technology and an etherification step 有权
    使用移动床技术将醇类含氧化合物转化为丙烯和醚化步骤

    公开(公告)号:US07371916B1

    公开(公告)日:2008-05-13

    申请号:US10943833

    申请日:2004-09-16

    IPC分类号: C07C1/00

    摘要: The average propylene selectivity per on-stream cycle of an alcoholic oxygenate to propylene (OTP) process using one or more fixed beds of a dual-function oxygenate conversion catalyst is substantially enhanced by the use of a feed pretreatment step involving a catalytic etherification reaction, by switching to moving bed reactor technology in the olefin synthesis portion of the OTP flow scheme in lieu of fixed bed technology and by the selection of a catalyst on-stream cycle time of 300 hours or less. These provisions hold the build-up of coke deposits on the dual-function catalyst to a level which does not substantially degrade catalyst activity, oxygenate conversion and propylene selectivity, thereby enabling maintenance of propylene average cycle yield at essentially start-of-cycle levels. The propylene average cycle yield improvement enabled by the present invention over that achieved by the fixed bed system of the prior art using the same or a similar dual-function catalyst system is of the order of about 1.5 to 5.5 wt-% or more.

    摘要翻译: 通过使用包含催化醚化反应的进料预处理步骤,使用一种或多种双功能含氧化合物转化催化剂的固定床的酒精含氧化合物对丙烯(OTP)方法的每个流动循环的平均丙烯选择性大大提高, 通过在OTP流动方案的烯烃合成部分中切换到移动床反应器技术来代替固定床技术,并且通过选择300小时以下的催化剂流动循环时间。 这些规定将双功能催化剂上的焦炭沉积物积聚到基本上不会降低催化剂活性,含氧化合物转化率和丙烯选择性的水平,从而使得在基本上循环水平上维持丙烯平均循环产率。 通过使用相同或相似的双功能催化剂体系的现有技术的固定床系统实现的本发明丙烯平均循环产率改进为约1.5至5.5重量%或更多。

    Conversion of oxygenate to propylene using moving bed technology
    23.
    发明授权
    Conversion of oxygenate to propylene using moving bed technology 失效
    使用移动床技术将含氧化合物转化为丙烯

    公开(公告)号:US07371915B1

    公开(公告)日:2008-05-13

    申请号:US10876394

    申请日:2004-06-25

    IPC分类号: C07C1/00

    摘要: The average cycle propylene selectivity of an oxygenate to propylene (OTP) process using one or more fixed beds of a dual-function oxygenate conversion catalyst is substantially enhanced by the use of moving bed reactor technology in the hydrocarbon synthesis portion of the OTP flow scheme in lieu of fixed bed technology coupled with the selection of a catalyst on-stream cycle time of 200 hours or less. Those provisions hold the build-up of coke deposits on the catalyst to a level which does not substantially degrade dual-function catalyst activity, oxygenate conversion and propylene selectivity, thereby enabling maintenance of propylene average cycle yield at essentially start-of-cycle levels. The propylene average cycle yield improvement enabled by the present invention over that achieved by the fixed bed system of the prior art using the same or a similar catalyst system is of the order of about 1.5 to 5.5 wt-% or more.

    摘要翻译: 使用一种或多种双功能含氧化合物转化催化剂固定床的含氧化合物对丙烯(OTP)方法的平均循环丙烯选择性通过在OTP流动方案的烃合成部分中使用移动床反应器技术而显着增强 固定床技术的替代加上选择催化剂在线循环时间为200小时以下。 这些规定将催化剂上的焦炭沉积物积聚到不会显着降低双重功能催化剂活性,含氧化合物转化率和丙烯选择性的水平,从而在基本上循环水平的初始阶段维持丙烯平均循环产率。 通过使用相同或相似的催化剂体系的现有技术的固定床系统实现的本发明的丙烯平均循环产率提高约为1.5至5.5重量%或更多。

    BTX from naphtha without extraction
    24.
    发明授权
    BTX from naphtha without extraction 失效
    BTX从石脑油无提取

    公开(公告)号:US5792338A

    公开(公告)日:1998-08-11

    申请号:US567663

    申请日:1995-12-05

    摘要: A hydrocarbon feedstock is catalytically reformed in a sequence comprising a continuous-reforming zone associated with continuous catalyst regeneration, a zeolitic-reforming zone containing a catalyst comprising a platinum-group metal and a nonacidic L-zeolite and an aromatics-isomerization zone containing a catalyst comprising a platinum-group metal, a metal attenuator and a refractory inorganic oxide. The process combination features high selectivity in producing a high-purity BTX product from naphtha.

    摘要翻译: 烃原料以包含与连续催化剂再生相关联的连续重整区的序列催化重整,含有包含铂族金属和非酸性L-沸石的催化剂的沸石重整区和含有催化剂的芳族化合物异构化区 包括铂族金属,金属衰减剂和耐火无机氧化物。 该方法组合在生产来自石脑油的高纯度BTX产品时具有高选择性。

    Process for the removal of polynuclear aromatic compounds from a vapor
effluent from a normally gaseous hydrocarbon dehydrogenation reaction
zone
    25.
    发明授权
    Process for the removal of polynuclear aromatic compounds from a vapor effluent from a normally gaseous hydrocarbon dehydrogenation reaction zone 失效
    从通常气态烃脱氢反应区的蒸气流出物中除去多核芳族化合物的方法

    公开(公告)号:US5672804A

    公开(公告)日:1997-09-30

    申请号:US502992

    申请日:1995-07-17

    申请人: Bryan K. Glover

    发明人: Bryan K. Glover

    IPC分类号: C07C7/00 C07C7/09 C07C11/02

    CPC分类号: C07C11/02 C07C7/005 C07C7/09

    摘要: A process for the removal of trace quantities of polynuclear aromatic compounds from the vapor effluent of a hydrocarbon dehydrogenation zone containing normally gaseous olefinic hydrocarbons, trace mononuclear aromatic compounds and trace polynuclear aromatic compounds by cooling the vapor effluent to condense at least a portion thereof, up to five weight percent, by introducing the resulting cooled stream into a vapor-liquid separator to produce a vapor stream containing normally gaseous olefinic hydrocarbons and having a reduced concentration of polynuclear aromatic compounds and a liquid stream containing mononuclear and polynuclear aromatic compounds and by recovering the vapor stream comprising normally gaseous olefinic hydrocarbons having a reduced concentration of polynuclear aromatic compounds.

    摘要翻译: 通过冷却蒸汽流出物冷凝其至少一部分,从含有通常气态的烯烃,痕量单核芳族化合物和痕量多核芳族化合物的烃脱氢区的蒸气流出物中除去痕量的多核芳族化合物的方法, 通过将所得到的冷却流引入气液分离器中以产生含有通常气态烯烃的蒸气流并具有降低的多核芳族化合物浓度和含有单核和多核芳族化合物的液体流,并通过回收 包含具有降低的多核芳族化合物浓度的常规气态烯烃的蒸气流。