Olefin production via oxygenate conversion
    2.
    发明申请
    Olefin production via oxygenate conversion 审中-公开
    通过含氧化合物转化生产烯烃

    公开(公告)号:US20070155999A1

    公开(公告)日:2007-07-05

    申请号:US11322412

    申请日:2005-12-30

    IPC分类号: C07C1/00 B01J8/00

    摘要: Improved processing for the production of light olefins via oxygenate conversion processing is provided. Synthesis gas conversion such as to produce an effluent including at least methanol can be integrated with oxygenate conversion processing such as to produce an oxygenate conversion reactor effluent including at least light olefins and dimethyl ether. At least a portion of the oxygenate conversion reactor effluent can be contacted with such produced methanol to effect recovery of dimethyl ether from the oxygenate conversion reactor effluent.

    摘要翻译: 提供了通过含氧化合物转化处理生产轻质烯烃的改进方法。 合成气转化如产生至少包含甲醇的流出物可与含氧化合物转化处理结合,以产生包含至少轻烯烃和二甲醚的含氧化合物转化反应器流出物。 含氧化合物转化反应器流出物的至少一部分可以与这样产生的甲醇接触以从含氧化合物转化反应器流出物中回收二甲醚。

    Selective conversion of oxygenate to propylene using moving bed technology and a hydrothermally stabilized dual-function catalyst
    4.
    发明申请
    Selective conversion of oxygenate to propylene using moving bed technology and a hydrothermally stabilized dual-function catalyst 有权
    使用移动床技术和水热稳定的双功能催化剂选择性地将含氧化合物转化为丙烯

    公开(公告)号:US20060106270A1

    公开(公告)日:2006-05-18

    申请号:US10988136

    申请日:2004-11-12

    IPC分类号: C07C1/00

    摘要: The average propylene cycle selectivity of an oxygenate to propylene (OTP) process using a dual-function oxygenate conversion catalyst is substantially enhanced by the use of a combination of: 1) moving bed reactor technology in the hydrocarbon synthesis portion of the OTP flow scheme in lieu of the fixed bed technology of the prior art; 2) a hydrothermally stabilized and dual-functional catalyst system comprising a molecular sieve having dual-function capability dispersed in a phosphorus-modified alumina matrix containing labile phosphorus and/or aluminum anions; and 3) a catalyst on-stream cycle time of 400 hours or less. These provisions stabilize the catalyst against hydrothermal deactivation and 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 average propylene cycle yield near or at essentially start-of-cycle levels.

    摘要翻译: 使用双功能含氧化合物转化催化剂的含氧化合物对丙烯(OTP)方法的平均丙烯循环选择性通过使用以下组合来显着增强:1)OTP流程图的烃合成部分中的移动床反应器技术 现有技术的固定床技术的代替; 2)水热稳定和双功能催化剂体系,其包含具有分散在含有不稳定磷和/或铝阴离子的磷改性氧化铝基质中的双功能能力的分子筛; 和3)催化剂在流循环时间为400小时以下。 这些规定稳定催化剂以防止水热失活,并将催化剂上焦炭沉积物的积聚保持在基本上不降低双功能催化剂活性,含氧化合物转化率和丙烯选择性的水平,从而使维持平均丙烯循环产率接近或 基本上是循环周期的水平。

    Oxygenate conversion to olefins with metathesis
    5.
    发明申请
    Oxygenate conversion to olefins with metathesis 审中-公开
    复合转化烯烃转化为烯烃

    公开(公告)号:US20070203384A1

    公开(公告)日:2007-08-30

    申请号:US11315935

    申请日:2005-12-22

    IPC分类号: C07C1/00 B01J8/00

    摘要: Improved processing of an oxygenate-containing feedstock for increased production or yield of light olefins, particularly for increased relative yield of propylene is provided. Such processing involves oxygenate conversion to olefins and subsequent oxygenate conversion effluent stream treatment including isomerization of at least a portion of the 1-butenes to 2-butenes and metathesization of at least a portion of the 2-butenes to produce additional propylene.

    摘要翻译: 提供了含有含氧化合物的原料的改进加工,用于提高轻质烯烃的生产或产率,特别是用于提高丙烯的相对产率。 这种处理涉及含氧化合物转化为烯烃和随后的含氧化合物转化流出物流处理,包括将至少一部分1-丁烯异构化成2-丁烯并至少部分2-丁烯的复分解以产生额外的丙烯。

    Light olefin production via dimethyl ether
    6.
    发明申请
    Light olefin production via dimethyl ether 有权
    通过二甲醚生产轻烯烃

    公开(公告)号:US20070203380A1

    公开(公告)日:2007-08-30

    申请号:US11322897

    申请日:2005-12-30

    IPC分类号: C07C1/00 B01J8/00

    摘要: Improved processing for the production of light olefins is provided involving synthesis gas conversion to form an effluent including product dimethyl ether, subsequent separation of the product dimethyl ether and conversion thereof to the desired light olefins. The synthesis gas conversion effluent may also desirably include methanol and at least a portion of such methanol may be employed to effect the separation of the product dimethyl ether.

    摘要翻译: 提供了用于生产轻质烯烃的改进方法,包括合成气转化以形成包含产物二甲醚的流出物,随后分离产物二甲醚并将其转化成所需的轻质烯烃。 合成气转化流出物还可以理想地包括甲醇,并且可以使用至少一部分这种甲醇来实现产物二甲醚的分离。

    Spherical catalysts to convert hydrocarbons to light olefins
    7.
    发明申请
    Spherical catalysts to convert hydrocarbons to light olefins 有权
    将烃转化为轻质烯烃的球形催化剂

    公开(公告)号:US20050080307A1

    公开(公告)日:2005-04-14

    申请号:US10951359

    申请日:2004-09-28

    摘要: The present invention comprises a process for producing propylene comprising the steps of contacting an olefin feed containing between about 40 and about 80 wt-% olefins and between about 20 and about 60 wt-% olefins and aromatics with a spherical catalyst to form a cracked product, the catalyst comprising about 30 to about 80 wt-% of a crystalline zeolite, the reaction conditions including a temperature from about 500° to 650° C., a hydrocarbon partial pressure of 70 to 280 kPa (10 to 40 psia), a liquid hourly space velocity in the range of 5 to 40 hr−1 and wherein propylene comprises at least 90 mol-% of the total C3 products.

    摘要翻译: 本发明包括一种生产丙烯的方法,包括以下步骤:将含有约40至约80重量%的烯烃和约20至约60重量%的烯烃和芳族化合物的烯烃进料与球形催化剂接触以形成裂化产物 ,催化剂包含约30至约80重量%的结晶沸石,反应条件包括约500℃至650℃的温度,70至280kPa(10至40psia)的烃分压, 在5至40小时-1的范围内的液时空速,其中丙烯包含总C3产物的至少90摩尔%。

    Process for Enhanced Olefin Production
    10.
    发明申请
    Process for Enhanced Olefin Production 有权
    加强烯烃生产工艺

    公开(公告)号:US20080039667A1

    公开(公告)日:2008-02-14

    申请号:US11874448

    申请日:2007-10-18

    IPC分类号: C07C1/00

    摘要: The present invention relates to a process for the production of light weight olefins comprising olefins having from 2 to 3 carbon atoms per molecule from an oxygenate feedstock. The process comprises passing the oxygenate feedstock to an oxygenate conversion zone containing a metal aluminophosphate catalyst to produce a light weight olefin stream. A propylene stream and/or mixed butylene is fractionated from said light weight olefin stream and a medium weight C4 to C7 stream is cracked in a separate olefin cracking reactor to enhance the yield of ethylene and propylene products.

    摘要翻译: 本发明涉及一种生产轻质烯烃的方法,其包含每分子含有2-3个碳原子的含氧原料。 该方法包括使含氧化合物原料通入含有金属磷酸铝催化剂的含氧化合物转化区以产生轻质烯烃物流。 将丙烯料流和/或混合的丁烯从所述轻质烯烃料流中分馏,并将中等重量C 4至C 7 H 2流在单独的烯烃裂解反应器中裂化以增强 乙烯和丙烯产品的产率。