Enhancement of alkylation catalysts for improved supercritical fluid regeneration
    2.
    发明授权
    Enhancement of alkylation catalysts for improved supercritical fluid regeneration 有权
    用于改进超临界流体再生的烷基化催化剂的增强

    公开(公告)号:US07592282B2

    公开(公告)日:2009-09-22

    申请号:US10986742

    申请日:2004-11-11

    摘要: A method of modifying an alkylation catalyst to reduce the formation of condensed hydrocarbon species thereon. The method comprises providing an alkylation catalyst comprising a plurality of active sites. The plurality of active sites on the alkylation catalyst may include a plurality of weakly acidic active sites, intermediate acidity active sites, and strongly acidic active sites. A base is adsorbed to a portion of the plurality of active sites, such as the strongly acidic active sites, selectively poisoning the strongly acidic active sites. A method of modifying the alkylation catalyst by providing an alkylation catalyst comprising a pore size distribution that sterically constrains formation of the condensed hydrocarbon species on the alkylation catalyst or by synthesizing the alkylation catalyst to comprise a decreased number of strongly acidic active sites is also disclosed, as is a method of improving a regeneration efficiency of the alkylation catalyst.

    摘要翻译: 一种改性烷基化催化剂以减少其上的稠合烃物质形成的方法。 该方法包括提供包含多个活性位点的烷基化催化剂。 烷基化催化剂上的多个活性位点可以包括多个弱酸性活性位点,中间酸性活性位点和强酸性活性位点。 碱被吸附到多个活性位点的一部分,例如强酸性活性位点,选择性地中毒强酸性活性位点。 还公开了通过提供烷基化催化剂来改性烷基化催化剂的方法,所述烷基化催化剂包含空间上约束烷基化催化剂上的稠合烃物质的形成的孔径分布,或通过合成烷基化催化剂以包含减少数量的强酸性活性位点, 以及提高烷基化催化剂的再生效率的方法也是如此。

    SYSTEM FOR REACTIVATING CATALYSTS
    4.
    发明申请
    SYSTEM FOR REACTIVATING CATALYSTS 有权
    反应催化剂体系

    公开(公告)号:US20080267835A1

    公开(公告)日:2008-10-30

    申请号:US12165301

    申请日:2008-06-30

    IPC分类号: B01J8/18

    CPC分类号: B01J38/56 B01J2038/005

    摘要: A method of reactivating a catalyst, such as a solid catalyst or a liquid catalyst is provided. The method comprises providing a catalyst that is at least partially deactivated by fouling agents. The catalyst is contacted with a fluid reactivating agent that is at or above a critical point of the fluid reactivating agent and is of sufficient density to dissolve impurities. The fluid reactivating agent reacts with at least one fouling agent, releasing the at least one fouling agent from the catalyst. The at least one fouling agent becomes dissolved in the fluid reactivating agent and is subsequently separated or removed from the fluid reactivating agent so that the fluid reactivating agent may be reused. A system for reactivating a catalyst is also disclosed.

    摘要翻译: 提供了重新催化剂如固体催化剂或液体催化剂的方法。 该方法包括提供至少部分由结垢剂去活化的催化剂。 催化剂与处于流体还原剂的临界点以上的流体还原剂接触并且具有足够的密度以溶解杂质。 流体再活化剂与至少一种结垢剂反应,从催化剂中释放至少一种结垢剂。 至少一种结垢剂溶解在流体再活化剂中,随后从流体再活化剂中分离或除去,使得流体再生剂可以重复使用。 还公开了还原催化剂的系统。

    Methods for recovering a polar solvent from a fluid stream contaminated with at least one polar impurity
    6.
    发明授权
    Methods for recovering a polar solvent from a fluid stream contaminated with at least one polar impurity 有权
    从被至少一种极性杂质污染的流体流中回收极性溶剂的方法

    公开(公告)号:US08308954B2

    公开(公告)日:2012-11-13

    申请号:US12238225

    申请日:2008-09-25

    IPC分类号: B01D11/00

    摘要: A method of removing a polar solvent from a fluid volume contaminated with at least one polar impurity, such as a free fatty acid, is provided. The method comprises providing a fluid volume that includes at least one polar impurity dissolved in at least one solvent. The fluid volume is contacted with an expanding gas to remove the at least one solvent. The expanding gas may be dissolved into the at least one solvent in the fluid volume to form a gas-expanded solvent. The immiscibility of the polar impurities in the gas-expanded solvent enables separation of the polar impurities from the gas-expanded solvent. After separation of the polar impurities, at least one of the temperature and pressure may be reduced to separate the solvent from the expanding gas such that the clean solvent may be reused.

    摘要翻译: 提供了从由至少一种极性杂质污染的流体体积如游离脂肪酸中除去极性溶剂的方法。 该方法包括提供包含溶解在至少一种溶剂中的至少一种极性杂质的流体体积。 流体体积与膨胀气体接触以除去至少一种溶剂。 膨胀气体可以溶解在流体体积中的至少一种溶剂中以形成气体膨胀溶剂。 气体膨胀溶剂中的极性杂质的不混溶性使得能够从气体膨胀溶剂中分离极性杂质。 在分离极性杂质之后,可以降低温度和压力中的至少一个以使溶剂与膨胀气体分离,使得清洁溶剂可以重复使用。

    System for reactivating catalysts
    7.
    发明授权
    System for reactivating catalysts 有权
    催化剂再生系统

    公开(公告)号:US07670568B2

    公开(公告)日:2010-03-02

    申请号:US12165301

    申请日:2008-06-30

    IPC分类号: F27B15/08

    CPC分类号: B01J38/56 B01J2038/005

    摘要: A method of reactivating a catalyst, such as a solid catalyst or a liquid catalyst is provided. The method comprises providing a catalyst that is at least partially deactivated by fouling agents. The catalyst is contacted with a fluid reactivating agent that is at or above a critical point of the fluid reactivating agent and is of sufficient density to dissolve impurities. The fluid reactivating agent reacts with at least one fouling agent, releasing the at least one fouling agent from the catalyst. The at least one fouling agent becomes dissolved in the fluid reactivating agent and is subsequently separated or removed from the fluid reactivating agent so that the fluid reactivating agent may be reused. A system for reactivating a catalyst is also disclosed.

    摘要翻译: 提供了重新催化剂如固体催化剂或液体催化剂的方法。 该方法包括提供至少部分地被污垢剂去活化的催化剂。 催化剂与处于流体还原剂的临界点以上的流体还原剂接触并且具有足够的密度以溶解杂质。 流体再活化剂与至少一种结垢剂反应,从催化剂中释放至少一种结垢剂。 至少一种结垢剂溶解在流体再活化剂中,随后从流体再活化剂中分离或除去,使得流体再生剂可以重复使用。 还公开了还原催化剂的系统。

    Production of biodiesel using expanded gas solvents
    8.
    发明授权
    Production of biodiesel using expanded gas solvents 有权
    使用膨胀气体溶剂生产生物柴油

    公开(公告)号:US07514575B2

    公开(公告)日:2009-04-07

    申请号:US11123607

    申请日:2005-05-06

    IPC分类号: C11C1/00 C11C3/00

    摘要: A method of producing an alkyl ester. The method comprises providing an alcohol and a triglyceride or fatty acid. An expanding gas is dissolved into the alcohol to form a gas expanded solvent. The alcohol is reacted with the triglyceride or fatty acid in a single phase to produce the alkyl ester. The expanding gas may be a nonpolar expanding gas, such as carbon dioxide, methane, ethane, propane, butane, pentane, ethylene, propylene, butylene, pentene, isomers thereof, and mixtures thereof, which is dissolved into the alcohol. The gas expanded solvent may be maintained at a temperature below, at, or above a critical temperature of the expanding gas and at a pressure below, at, or above a critical pressure of the expanding gas.

    摘要翻译: 一种制备烷基酯的方法。 该方法包括提供醇和甘油三酯或脂肪酸。 将膨胀气体溶解到醇中以形成气体膨胀溶剂。 醇与甘油三酯或脂肪酸在单相中反应以产生烷基酯。 膨胀气体可以是溶解在醇中的非极性膨胀气体,例如二氧化碳,甲烷,乙烷,丙烷,丁烷,戊烷,乙烯,丙烯,丁烯,戊烯,其异构体及其混合物。 气体膨胀溶剂可以保持在膨胀气体的临界温度以下,低于或等于膨胀气体的临界压力或高于膨胀气体的临界压力的压力的温度以下。

    Method for destroying halocarbon compositions using a critical solvent
    9.
    发明授权
    Method for destroying halocarbon compositions using a critical solvent 失效
    使用临界溶剂破坏卤代烃组合物的方法

    公开(公告)号:US06984768B2

    公开(公告)日:2006-01-10

    申请号:US10152599

    申请日:2002-05-21

    IPC分类号: A62D3/00

    CPC分类号: A62D3/34 A62D3/37 A62D2101/22

    摘要: A method for destroying halocarbons. Halocarbon materials are reacted in a dehalogenation process wherein they are combined with a solvent in the presence of a catalyst. A hydrogen-containing solvent is preferred which functions as both a solvating agent and hydrogen donor. To augment the hydrogen donation capacity of the solvent if needed (or when non-hydrogen-containing solvents are used), a supplemental hydrogen donor composition may be employed. In operation, at least one of the temperature and pressure of the solvent is maintained near, at, or above a critical level. For example, the solvent may be in (1) a supercritical state; (2) a state where one of the temperature or pressure thereof is at or above critical; or (3) a state where at least one of the temperature and pressure thereof is near-critical. This system provides numerous benefits including improved reaction rates, efficiency, and versatility.

    摘要翻译: 一种破坏卤代烃的方法。 卤代烃材料在脱卤方法中反应,其中它们在催化剂存在下与溶剂组合。 优选含氢溶剂,其既用作溶剂化剂又可用作氢供体。 为了增加溶剂的氢气供应能力(如果需要的话)(或者当使用不含氢的溶剂时),可以使用补氢供体组合物。 在操作中,溶剂的温度和压力中的至少一个保持接近,等于或高于临界水平。 例如,溶剂可以是(1)超临界状态; (2)其温度或压力之一处于或超过临界状态; 或(3)至少其中一个温度和压力接近临界的状态。 该系统提供了许多好处,包括提高反应速率,效率和多功能性。

    Method of synthesizing enriched decaborane for use in generating boron
neutron capture therapy pharmaceuticals
    10.
    发明授权
    Method of synthesizing enriched decaborane for use in generating boron neutron capture therapy pharmaceuticals 失效
    用于产生硼中子捕获治疗药物的富集的十硼烷的合成方法

    公开(公告)号:US6086837A

    公开(公告)日:2000-07-11

    申请号:US842979

    申请日:1997-04-24

    IPC分类号: C01B35/02 C01B6/10

    CPC分类号: C01B35/026

    摘要: A method is described for synthesizing decaborane wherein at least about 90% of the boron atoms in the decaborane are the .sup.10 B isotope, comprising the steps of: (a) reacting boric acid with a C.sub.1 to C.sub.10 alkanol to form a .sup.10 B-alkyl borate wherein at least about 90% of the boron atoms in the boric acid are the .sup.10 B isotope; (b) reducing the .sup.10 B-alkyl borate to form an alkali metal .sup.10 B-borohydride; (c) converting the alkali metal .sup.10 B-borohydride to a .sup.10 B-tetradecahydroundecaborate ion; and (d) converting the .sup.10 B-tetradecahydroundecaborate ion to .sup.10 B-decaborane. Methods of preparing tetradecahydroundecaborate ions and decaborane from alkali metal borohydrides are also described.

    摘要翻译: 描述了用于合成十硼烷的方法,其中十硼烷中的至少约90%的硼原子是10B同位素,包括以下步骤:(a)使硼酸与C1至C10链烷醇反应以形成10B-烷基硼酸盐,其中 硼酸中至少约90%的硼原子是10B同位素; (b)还原10B-烷基硼酸盐以形成碱金属10B-硼氢化物; (c)将碱金属10B-硼氢化物转化成10B-十四氢十八硼酸根离子; 和(d)将10B-十四氢十八硼酸根离子转化为10B-十硼烷。 还描述了从碱金属硼氢化物制备十四碳代硼酸根离子和十硼烷的方法。