Selective sorbents for purification of hydrocartons
    11.
    发明授权
    Selective sorbents for purification of hydrocartons 有权
    选择性吸附剂用于纯化氢醌

    公开(公告)号:US07148389B2

    公开(公告)日:2006-12-12

    申请号:US10234681

    申请日:2002-09-04

    IPC分类号: C07C29/00

    摘要: A method for removing thiophene and thiophene compounds from liquid fuel includes contacting the liquid fuel with an adsorbent which preferentially adsorbs the thiophene and thiophene compounds. The adsorption takes place at a selected temperature and pressure, thereby producing a non-adsorbed component and a thiophene/thiophene compound-rich adsorbed component. The adsorbent includes either a metal or a metal ion that is adapted to form π-complexation bonds with the thiophene and/or thiophene compounds, and the preferential adsorption occurs by π-complexation. A further method includes selective removal of aromatic compounds from a mixture of aromatic and aliphatic compounds.

    摘要翻译: 从液体燃料中除去噻吩和噻吩化合物的方法包括使液体燃料与优先吸附噻吩和噻吩化合物的吸附剂接触。 吸附在选定的温度和压力下进行,从而产生非吸附组分和富含噻吩/噻吩化合物的吸附组分。 吸附剂包括适于与噻吩和/或噻吩化合物形成π-络合键的金属或金属离子,并且通过π络合发生优先吸附。 另一种方法包括从芳族和脂族化合物的混合物中选择性除去芳族化合物。

    Method for selective adsorption of dienes
    13.
    发明授权
    Method for selective adsorption of dienes 有权
    二烯选择性吸附方法

    公开(公告)号:US06215037B1

    公开(公告)日:2001-04-10

    申请号:US09179667

    申请日:1998-10-27

    IPC分类号: C07C700

    CPC分类号: C07C7/13

    摘要: The invention provides specific adsorbents and methods for separating an unsaturated hydrocarbon from a mixture containing such hydrocarbon. The adsorbents and methods are useful for separating dienes from mono-olefins.

    摘要翻译: 本发明提供了特定的吸附剂和从含有这种烃的混合物中分离不饱和烃的方法。 吸附剂和方法可用于从单烯烃中分离二烯。

    Process of removing sulfur oxides from gaseous mixtures
    14.
    发明授权
    Process of removing sulfur oxides from gaseous mixtures 失效
    从气态混合物中除去硫氧化物的工艺

    公开(公告)号:US5248321A

    公开(公告)日:1993-09-28

    申请号:US926776

    申请日:1992-08-06

    申请人: Ralph T. Yang

    发明人: Ralph T. Yang

    IPC分类号: B01D53/04 B01J20/26

    摘要: A process is provided for removing sulfur oxides from gaseous mixtures such as flue gases or tail gases. The process involves contacting the gaseous mixture with a non-functionalized polymeric sorbent which is essentially hydrophobic, such as styrenic polymers. The process may utilize pressure swing adsorption techniques, and is capable of producing a desorption stream with an SO.sub.2 concentration suitable for immediate conversion to elemental sulfur by the Claus process.

    摘要翻译: 提供了一种从气体混合物如烟道气或尾气中除去硫氧化物的方法。 该方法包括使气态混合物与基本上疏水的非官能化聚合物吸附剂接触,例如苯乙烯聚合物。 该方法可以利用变压吸附技术,并且能够产生具有适合于通过Claus方法立即转化成元素硫的SO 2浓度的解吸流。

    Method and apparatus for the selective separation of gaseous coal
gasification products by pressure swing adsorption
    15.
    发明授权
    Method and apparatus for the selective separation of gaseous coal gasification products by pressure swing adsorption 失效
    通过变压吸附选择性分离气态煤气化产物的方法和装置

    公开(公告)号:US4696680A

    公开(公告)日:1987-09-29

    申请号:US783606

    申请日:1985-10-03

    IPC分类号: B01D53/047 C01B3/56 B01D53/04

    摘要: Bulk separation of the gaseous components of multi-component gases provided by the gasification of coal including hydrogen, carbon monoxide, methane, and acid gases (carbon dioxide plus hydrogen sulfide) are selectively adsorbed by a pressure swing adsorption technique using activated carbon, zeolite or a combination thereof as the adsorbent. By charging a column containing the adsorbent with a gas mixture and pressurizing the column to a pressure sufficient to cause the adsorption of the gases and then reducing the partial pressure of the contents of the column, the gases are selectively and sequentially desorbed. Hydrogen, the least absorbable gas of the gaseous mixture, is the first gas to be desorbed and is removed from the column in a co-current direction followed by the carbon monoxide, hydrogen and methane. With the pressure in the column reduced to about atmospheric pressure the column is evacuated in a countercurrent direction to remove the acid gases from the column. The present invention is particularly advantageous as a producer of high parity hydrogen from gaseous products of coal gasification and as an acid gas scrubber.

    摘要翻译: 通过使用活性炭,沸石的变压吸附技术选择性地吸附由包括氢气,一氧化碳,甲烷和酸性气体(二氧化碳和硫化氢)在内的煤气化提供的多组分气体的气体组分的大量分离, 其组合作为吸附剂。 通过用气体混合物对含有吸附剂的柱进行充填,并将柱加压到足以引起气体吸附的压力,然后降低塔内容物的分压,气体被选择性地和顺序解吸。 氢气是气体混合物中最少的可吸收气体,是待解吸的第一种气体,并且在同向电流方向上随后是一氧化碳,氢气和甲烷从柱中除去。 在柱中的压力降至约大气压力下,将柱以逆流方向抽真空以从塔中除去酸性气体。 本发明作为来自煤气化的气态产物和酸性气体洗涤器的高平价氢的生产者是特别有利的。

    Catalytic iron oxide for lime regeneration in carbonaceous fuel
combustion
    16.
    发明授权
    Catalytic iron oxide for lime regeneration in carbonaceous fuel combustion 失效
    用于碳质燃料燃烧中石灰再生的催化氧化铁

    公开(公告)号:US4225572A

    公开(公告)日:1980-09-30

    申请号:US947664

    申请日:1978-09-29

    摘要: Lime utilization for sulfurous oxides absorption in fluidized combustion of carbonaceous fuels is improved by impregnation of porous lime particulates with iron oxide. The impregnation is achieved by spraying an aqueous solution of mixed iron sulfate and sulfite on the limestone before transfer to the fluidized bed combustor, whereby the iron compounds react with the limestone substrate to form iron oxide at the limestone surface. It is found that iron oxide present in the spent limestone acts as a catalyst to regenerate the spent limestone in a reducing environment. With only small quantities of iron oxide the calcium can be recycled at a significantly increased rate.

    摘要翻译: 通过用氧化铁浸渍多孔石灰颗粒,改善碳质燃料流化燃烧中亚硫氧化物吸收的石灰利用。 浸渍通过在转移到流化床燃烧器之前将混合的硫酸铁和亚硫酸盐的水溶液喷射到石灰石上来实现,由此铁化合物与石灰石基底反应以在石灰石表面形成氧化铁。 发现废石灰石中存在的氧化铁作为催化剂在还原环境中再生废石灰石。 只有少量的氧化铁才能以显着增加的速度回收钙。

    ENHANCING HYDROGEN SPILLOVER AND STORAGE
    17.
    发明申请
    ENHANCING HYDROGEN SPILLOVER AND STORAGE 有权
    增加氢气和储存

    公开(公告)号:US20100019196A1

    公开(公告)日:2010-01-28

    申请号:US11820954

    申请日:2007-06-21

    IPC分类号: C01B3/00 B01J19/10

    摘要: Methods for enhancing hydrogen spillover and storage are disclosed. One embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the hydrogen receptor to ultrasonification as doping occurs. Another embodiment of the method includes doping a hydrogen receptor with metal particles, and exposing the doped hydrogen receptor to a plasma treatment.

    摘要翻译: 公开了增强氢气溢出和储存的方法。 该方法的一个实施方案包括用金属颗粒掺杂氢受体,并在发生掺杂时将氢受体暴露于超声波。 该方法的另一个实施方案包括用金属颗粒掺杂氢受体,并将掺杂的氢受体暴露于等离子体处理。

    Selective adsorption of alkenes using supported metal compounds
    18.
    发明授权
    Selective adsorption of alkenes using supported metal compounds 有权
    使用负载金属化合物选择性吸附烯烃

    公开(公告)号:US06867166B2

    公开(公告)日:2005-03-15

    申请号:US10082550

    申请日:2002-02-25

    IPC分类号: C07C7/152 B01J20/22

    CPC分类号: C07C7/152 C07C11/02

    摘要: The invention provides novel adsorbents for use in the separation of unsaturated hydrocarbons from a mixture of gases containing such hydrocarbons. The preferred adsorbents comprise metal compounds supported on high surface area carriers. The adsorbents of the invention are usable in pressure swing adsorption or temperature swing adsorption processes.

    摘要翻译: 本发明提供了用于从含有这些烃的气体混合物中分离不饱和烃的新型吸附剂。 优选的吸附剂包括负载在高表面积载体上的金属化合物。 本发明的吸附剂可用于变压吸附或变温吸附方法。

    Lithium-based zeolites containing silver and copper and use thereof for selective absorption
    19.
    发明授权
    Lithium-based zeolites containing silver and copper and use thereof for selective absorption 失效
    含有银和铜的锂基沸石及其用于选择性吸收

    公开(公告)号:US06780806B1

    公开(公告)日:2004-08-24

    申请号:US09869623

    申请日:2001-06-28

    IPC分类号: B01J2906

    摘要: The invention provides new methods for separating nitrogen from a mixture. The invention provides adsorbents specifically for accomplishing nitrogen separation. The adsorbents and separation methods are particularly useful for the selective adsorption of nitrogen from air. In one aspect, the adsorbent comprises an ion exchange zeolite X and preferably zeolite LSX (low silica zeolite X). The zeolite is most preferably a lithium-based zeolite. Further, the zeolite has exchangeable cationic sites, with silver cation or copper cation occupying at least some of the exchangeable cationic sites. The Ag/Cu exchanged zeolite is heat-treated under specific conditions as per the invention. The presence of the silver cation or copper cation at any of the sites will provide an improvement over the non-exchanged zeolite.

    摘要翻译: 本发明提供了从混合物中分离氮的新方法。 本发明提供了专门用于实现氮分离的吸附剂。 吸附剂和分离方法对于氮气从空气中的选择性吸附特别有用。 一方面,吸附剂包括离子交换沸石X,优选沸石LSX(低二氧化硅沸石X)。 沸石最优选为锂基沸石。 此外,沸石具有可交换的阳离子位点,银阳离子或铜阳离子占据至少一些可交换的阳离子位点。 根据本发明,在特定条件下对Ag / Cu交换的沸石进行热处理。 任何位置上银阳离子或铜阳离子的存在将提供相对于未交换的沸石的改进。