Integrated Oxygenate Conversion and Product Cracking
    51.
    发明申请
    Integrated Oxygenate Conversion and Product Cracking 审中-公开
    综合氧化转化和产品开裂

    公开(公告)号:US20100087693A1

    公开(公告)日:2010-04-08

    申请号:US12633253

    申请日:2009-12-08

    IPC分类号: C07C1/00

    摘要: Improved processing of an oxygenate-containing feedstock for increased production or yield of light olefins. Such processing involves oxygenate conversion to olefins and subsequent cracking of heavier olefins wherein at least a portion of the products from each of the reactors is elevated in pressure, using a common compressor, prior to being routed to a common product fractionation and recovery section. In one particular embodiment, the cracked product gas can be treated to remove acid gas therefrom. In another embodiment, the olefin cracking reactor is a moving bed reactor.

    摘要翻译: 改进含氧化合物原料的加工,以提高轻质烯烃的生产或产率。 这种处理涉及含氧化合物转化为烯烃并随后开裂较重的烯烃,其中使用普通的压缩机将来自每个反应器的产物的至少一部分在压力下升高,然后被送至共同的产物分馏和回收段。 在一个具体实施方案中,可以处理裂化产物气体以从其中除去酸性气体。 在另一个实施方案中,烯烃裂解反应器是移动床反应器。

    Selective conversion of oxygenate to propylene using moving bed technology and a hydrothermally stabilized dual-function catalyst
    54.
    发明授权
    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:US07408092B2

    公开(公告)日:2008-08-05

    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 dimerization and metathesis
    56.
    发明申请
    Oxygenate conversion to olefins with dimerization and metathesis 失效
    氧化烯转化为烯烃与二聚和复分解

    公开(公告)号:US20080154078A1

    公开(公告)日:2008-06-26

    申请号:US11643604

    申请日:2006-12-21

    IPC分类号: B01J10/00 C07C1/00

    摘要: A processing scheme and system for enhanced light olefin production, particularly for increased relative yield of propylene, involves oxygenate conversion to olefins and subsequent oxygenate conversion effluent stream treatment including dimerization of ethylene to butene and metathesis of butenes and/or hexenes with ethylene. The processing scheme and system may further involve isomerization of at least a portion of 1-butene to 2-butene to produce additional propylene.

    摘要翻译: 用于增强轻烯烃生产的加工方案和系统,特别是用于提高丙烯的相对产率,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,包括将乙烯二聚成丁烯和使乙烯和/或己烯与乙烯的复分解。 加工方案和系统可进一步包括将至少一部分1-丁烯异构化成2-丁烯以产生另外的丙烯。

    Process for cooling a hot vapor effluent of a hydrocarbon
dehydrogenation zone and removing trace quantities of polynuclear
aromatic compounds
    57.
    发明授权
    Process for cooling a hot vapor effluent of a hydrocarbon dehydrogenation zone and removing trace quantities of polynuclear aromatic compounds 失效
    用于冷却烃脱氢区的热蒸气流出物并除去痕量的多核芳族化合物的方法

    公开(公告)号:US5849979A

    公开(公告)日:1998-12-15

    申请号:US812800

    申请日:1997-03-06

    IPC分类号: C07C7/11

    CPC分类号: C07C7/11

    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 contacting the hot vapor effluent of a hydrocarbon dehydrogenation zone with a cold lean liquid absorption stream to absorb at least a portion of the trace polynuclear aromatic compounds to produce a rich liquid absorption stream and a gaseous olefin-containing hydrocarbon stream having a reduced concentration of polynuclear aromatic compounds.

    摘要翻译: 通过使碳氢化合物脱氢区的热蒸气流出物与冷却物接触,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 贫吸液体吸收流以吸收至少一部分痕量多核芳族化合物以产生富液体吸收流和具有降低的多核芳族化合物浓度的含气态烯烃的烃流。

    Preparing a light-olefin containing product stream from an oxygenate-containing feed steam using reactors directing a flow of a fluidized dual-function catalyst system
    59.
    发明授权
    Preparing a light-olefin containing product stream from an oxygenate-containing feed steam using reactors directing a flow of a fluidized dual-function catalyst system 有权
    使用引导流化双功能催化剂体系流的反应器从含氧化合物的进料蒸汽制备含轻烯烃的产物流

    公开(公告)号:US08735639B2

    公开(公告)日:2014-05-27

    申请号:US12755632

    申请日:2010-04-07

    IPC分类号: B01J8/00 C07C2/00

    摘要: The present process provides a method for converting an oxygenate-containing feed stream to an olefin-containing product stream. The method includes: (1) providing a first fluidized catalytic reactor for converting methanol to propylene, the first reactor having a fluidized catalyst system comprising a first catalyst and a second catalyst; (2) providing a second fluidized catalytic reactor communicating with the first fluidized catalytic reactor for cracking heavy olefins having four carbon atoms or greater into propylene, the second reactor having the fluidized catalyst system; (3) providing an oxygenate containing feed to the first reactor; and (4) fluidizing the catalyst system with the oxygenate containing feed.

    摘要翻译: 本发明方法提供了将含氧化合物的进料流转化为含烯烃的产物流的方法。 该方法包括:(1)提供用于将甲醇转化为丙烯的第一流化催化反应器,所述第一反应器具有包含第一催化剂和第二催化剂的流化催化剂体系; (2)提供与第一流化催化反应器连通的第二流化催化反应器,用于将具有四个或更多碳原子的重质烯烃裂解成丙烯,第二反应器具有流化催化剂体系; (3)向第一反应器提供含氧化合物进料; 和(4)用含氧化合物进料使催化剂体系流化。

    Integrated oxygenate conversion and product cracking
    60.
    发明授权
    Integrated oxygenate conversion and product cracking 有权
    综合含氧化合物转化和产物开裂

    公开(公告)号:US08603399B2

    公开(公告)日:2013-12-10

    申请号:US12571841

    申请日:2009-10-01

    IPC分类号: B01J8/18

    摘要: An improved processing system of an oxygenate-containing feedstock for increased production or yield of light olefins. Such processing involves oxygenate conversion to olefins and subsequent cracking of heavier olefins wherein at least a portion of the products from each of the reactors is elevated in pressure, using a common compressor, prior to being routed to a common product fractionation and recovery section. The system further comprises acid gas removal means to remove acid gases from the cracked product gas and that the olefin cracking reactor is a moving bed reactor.

    摘要翻译: 含氧化合物原料的改进处理系统,用于提高轻质烯烃的生产或产率。 这种处理涉及含氧化合物转化为烯烃并随后开裂较重的烯烃,其中使用普通的压缩机将来自每个反应器的产物的至少一部分在压力下升高,然后被送至共同的产物分馏和回收段。 该系统还包括从裂化产物气体除去酸性气体的酸性气体去除装置,并且烯烃裂解反应器是移动床反应器。