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    • 2. 发明授权
    • Hydrocarbon conversion to propylene with high silica medium pore zeolite catalysts
    • 烃转化为丙烯与高二氧化硅中孔沸石催化剂
    • US06656345B1
    • 2003-12-02
    • US09304657
    • 1999-05-04
    • Tan-Jen ChenMechilium (Marcel) Johannes Gerardus JanssenLuc Roger Marc MartensMachteld Maria MertensPhilip Andrew RuziskaLynn L. ZhaoJannetje Maatje van den Berge
    • Tan-Jen ChenMechilium (Marcel) Johannes Gerardus JanssenLuc Roger Marc MartensMachteld Maria MertensPhilip Andrew RuziskaLynn L. ZhaoJannetje Maatje van den Berge
    • C10G1102
    • C10G11/05C10G2400/20
    • The invention provides a method for converting a hydrocarbon feedstock to propylene comprising: contacting an olefinic hydrocarbon feedstock boiling in the naphtha range with a catalyst comprising a zeolitic catalyst selected from the group consisting of medium pore zeolites having a ratio of silica to alumina above 200 and pore diameter less than 0.7 nm under cracking conditions to selectively produce propylene. The preferred catalyst comprises of a zeolite having an 8, 10, or 12 membered ring pore structure. The preferred catalysts are selected from the group consisting of zeolites from the families MFI, MEL, MTW, TON, MTT, FER, MFS, and the zeolites ZSM-21, ZSM-38 and ZSM-48. Preferably the method is carried out to produce propylene with greater than 50% specificity, more preferably, the propylene to butylene ratio is at least 2:1 or a propylene to ethylene ratio of at least 4:1. The olefinic hydrocarbon feedstock consists essentially of hydrocarbons boiling within the range of 18° to 220° C. (65° F. to 430° F.). The olefinic hydrocarbon feedstock comprises from about 10 wt % to about 70 wt % olefins. Preferably the olefinic hydrocarbon feedstock comprises from about 5 wt % to about 35 wt % paraffins. The catalyst is contacted in the range of 400° C. to 700° C., a weight hourly space velocity (“WHSV”) of 1 to 1,000 hr−1 and a pressure of 0.1 to 30 atm. absolute.
    • 本发明提供了一种用于将烃原料转化成丙烯的方法,包括:使在石脑油范围沸腾的烯烃原料与包含沸石催化剂的催化剂接触,所述催化剂选自二氧化硅与氧化铝的比例大于200的中孔沸石, 孔径小于0.7nm,在选择性地生产丙烯。 优选的催化剂包括具有8,10或12元环孔结构的沸石。 优选的催化剂选自族MFI,MEL,MTW,TON,MTT,FER,MFS和沸石ZSM-21,ZSM-38和ZSM-48的沸石。 优选地,该方法进行以产生具有大于50%特异性的丙烯,更优选丙烯与丁烯的比率为至少2:1或丙烯与乙烯的比率为至少4:1。 烯烃原料基本上由沸点在18°至220℃(65°F至430°F)范围内的烃组成。 烯烃原料包含约10重量%至约70重量%的烯烃。 优选地,烯烃原料包含约5重量%至约35重量%的链烷烃。 催化剂在400℃至700℃的范围内接触,1至1,000小时-1的重时空速(“WHSV”)和0.1至30大气压的压力。 绝对。
    • 3. 发明授权
    • Process for producing olefins
    • 烯烃生产方法
    • US07279012B2
    • 2007-10-09
    • US10882722
    • 2004-07-01
    • Keith H. KuechlerJeffrey L. BrinenPhilip Andrew Ruziska
    • Keith H. KuechlerJeffrey L. BrinenPhilip Andrew Ruziska
    • C07C7/00
    • C07C11/06C07C11/04Y02P30/42Y02P30/48
    • A process for producing olefins comprises providing a vapor product stream from an oxygenate to olefin reaction, the vapor product stream comprising C2 to C4 olefins, C2 to C6 carbonyl compounds and water. The vapor product stream is cooled to provide a first vapor effluent stream comprising no more than 10 wt. % water, and a liquid water-rich stream. The first vapor effluent stream, and a first wash flash vapor stream, are compressed from a first pressure to a second pressure greater than said first pressure to form a second vapor effluent stream, which is then cooled to form a cooled second effluent stream that is at least partially in the vapor state. At least part of the cooled second effluent stream is washed with a liquid alcohol-containing stream, at a third pressure greater than the first pressure but not greater than the second pressure, to produce a wash liquid stream, which comprises C3 and C4 olefins, and a wash vapor stream, which contains less C2 to C6 carbonyl compounds than the first vapor effluent stream. The wash liquid stream is exposed to a pressure of at least the first pressure but less than the third pressure to form a first wash flash liquid stream and the first wash flash vapor stream, the first wash flash vapor stream being provided for compression with the first vapor effluent stream.
    • 制备烯烃的方法包括提供从含氧化合物到烯烃反应的蒸汽产物流,所述蒸气产物流包含C 2至C 4烯烃,C 2 - / C 1 -C 6羰基化合物和水。 蒸气产物流被冷却以提供包含不超过10wt。 %的水和富含液体的水。 第一蒸汽流出物流和第一洗涤闪蒸蒸气流从第一压力被压缩至大于所述第一压力的第二压力,以形成第二蒸气流出物流,然后将其冷却以形成冷却的第二流出物流,其为 至少部分处于蒸汽状态。 至少部分冷却的第二流出物流用含液体醇的流在大于第一压力但不大于第二压力的第三压力下洗涤,以产生洗涤液体流,其包含C 3 和C 4 O 3烯烃,以及与第一蒸气相比含有较少C 2 -C 6羰基化合物的洗涤蒸汽流 流出物流。 洗涤液体流暴露于至少第一压力但小于第三压力的压力以形成第一洗涤闪蒸液流和第一洗涤闪蒸蒸气流,第一洗涤闪蒸蒸气流被提供用于与第一 蒸汽流出物流。
    • 4. 发明授权
    • Process for producing olefins
    • 烯烃生产方法
    • US07361799B2
    • 2008-04-22
    • US11090422
    • 2005-03-25
    • Keith H. KuechlerJeffrey L. BrinenPhilip Andrew Ruziska
    • Keith H. KuechlerJeffrey L. BrinenPhilip Andrew Ruziska
    • C07C7/00C07C1/00
    • C07C1/20C07C7/10Y02P30/42Y02P30/48C07C11/02C07C11/04C07C11/06
    • A process is described for producing olefins from a vapor product stream from an oxygenate to olefin conversion reaction, the vapor product stream comprising C2 to C4 olefins, C5+ hydrocarbons, at least one oxygenate and water. In the process, the vapor product stream is cooled to remove water therefrom and produce a first vapor effluent stream. The first vapor effluent stream is then cooled and compressed to produce a condensed liquid effluent stream comprising C5+ hydrocarbons and at least one oxygenate, and a residual vapor effluent stream comprising C2 to C4 olefins. At least part of the condensed liquid effluent stream is contacted with a liquid water-containing stream in a liquid-liquid contacting device to at least partly separate said condensed liquid effluent stream, or portion thereof, into an aqueous phase rich in said at least one oxygenate and an organic phase rich in said C5+ hydrocarbons.
    • 描述了从含氧化合物到烯烃转化反应的蒸汽产物流中生产烯烃的方法,包含C 2至C 4烯烃的蒸气产物流, 5+烃,至少一种含氧化合物和水。 在该过程中,蒸气产物流被冷却以从其中除去水,并产生第一蒸气流出物流。 然后将第一蒸汽流出物流冷却并压缩以产生包含C 5+烃和至少一种含氧化合物的冷凝液体流出物流和包含C 2 H 2 至C 4 O 3烯烃。 至少部分冷凝液体流出物流与液 - 液接触装置中的液态含水流接触,至少部分地将所述冷凝液体流出物流或其部分分离成富含所述至少一种 含氧化合物和富含所述C 5+烃的有机相。