System for reactivating catalysts
    1.
    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。

    Pressure-tuned solid catalyzed heterogeneous chemical reactions
    2.
    发明申请
    Pressure-tuned solid catalyzed heterogeneous chemical reactions 失效
    压力调节固体催化的异质化学反应

    公开(公告)号:US20030073876A1

    公开(公告)日:2003-04-17

    申请号:US09940015

    申请日:2001-08-27

    摘要: Improved methods for conducting solid acid-catalyzed, near- or supercritical heterogeneous chemical reactions (e.g., alkylation reactions) are provided which give enhanced product yields and permit longer processing runs. The preferred reactions of the invention are carried out in the presence of a solid macroporous catalyst having a surface area of from about 50-400 m2/g and a pore size of from about 70-150 null. Product selectivity is enhanced by pressure-tuning of the reaction to promote production and separation of desired reaction products. In continuous processing, the chemical reaction may be interrupted before significant catalyst deactivation, followed by increasing reactor pressure and/or reducing reactor temperature to remove the accumulating coke; when the catalyst is regenerated, the original reaction conditions and reactant introduction may be resumed.

    摘要翻译: 提供了用于进行固体酸催化,近或超临界异质化学反应(例如烷基化反应)的改进方法,其提供增强的产物产率并允许更长的处理运行。 本发明的优选反应在表面积为约50-400m 2 / g和孔径为约70-150的固体大孔催化剂存在下进行。 产物选择性通过反应的压力调节来增强,以促进所需反应产物的产生和分离。 在连续加工中,化学反应可能在显着的催化剂失活之前中断,随后增加反应器压力和/或降低反应器温度以除去积聚的焦炭; 当再生催化剂时,可以恢复原始的反应条件和反应物的引入。

    Supported catalyst regeneration
    5.
    发明授权
    Supported catalyst regeneration 有权
    负载催化剂再生

    公开(公告)号:US06753286B2

    公开(公告)日:2004-06-22

    申请号:US10059917

    申请日:2002-01-29

    IPC分类号: B01J3862

    摘要: There is provided a process for renewing the activity of used, supported metal catalysts for the hydrogenation of carbon monoxide to form a mixture of hydrocarbons comprising decreasing the hydrocarbon content of the catalyst, impregnating said catalyst under an non-oxidative atmosphere with a solution at least one weak organic acid, preferably a mono- or di-carboxylic acid, to the point where it has absorbed a volume of said solution equal to at least about 10% of its calculated pore volume, oxidizing the catalyst with a gaseous oxidant in the presence of the impregnating solution and activating the catalyst by reduction with hydrogen at elevated temperatures. Optionally, the catalyst is calcined after the oxidation step, and passivated after the activation step. A preferred means of decreasing the hydrocarbon content of the catalyst is contacting it with a hydrogen-containing gas at elevated temperatures.

    摘要翻译: 提供了一种用于更新用于一氧化碳氢化的用过的负载金属催化剂以形成烃的混合物的活性的方法,包括降低催化剂的烃含量,在非氧化性气氛下用至少一种溶液浸渍所述催化剂 一种弱有机酸,优选单羧酸或二羧酸,其吸收一定体积的所述溶液等于其计算的孔体积的至少约10%,在存在下用气态氧化剂氧化催化剂 的浸渍溶液,并通过在升高的温度下用氢还原来活化催化剂。 任选地,在氧化步骤之后煅烧催化剂,并在活化步骤后钝化。 降低催化剂的烃含量的优选方法是在升高的温度下将其与含氢气体接触。

    Catalyst regeneration
    6.
    发明申请
    Catalyst regeneration 有权
    催化剂再生

    公开(公告)号:US20030144366A1

    公开(公告)日:2003-07-31

    申请号:US10059926

    申请日:2002-01-29

    摘要: There is provided a process for regenerating the activity of used metal catalysts for the hydrogenation of carbon monoxide comprising decreasing the hydrocarbon content thereof, calcining under an oxidant-containing atmosphere, impregnating with a solution of at least one of a metal compound, calcining under an oxidant-containing atmosphere and activating by contacting with a hydrogen-contacting gas at elevated temperatures to form an active catalyst. The process regenerates and enhances both supported and dispersed active metal (DAM) catalysts. Used catalysts enhanced by the process are initially treated to decrease their hydrocarbon content. The treatment may be carried out in a single reactor, or by carrying out up to all steps after catalyst may be withdrawn from a reactor and returned to at least one reactor, both preferably during operation thereof. Up to all steps may be effected in a subsequent reactor, or in specialized apparatus.

    摘要翻译: 提供了一种用于再生用于一氧化碳氢化的所用金属催化剂的活性的方法,包括降低其含烃量,在含氧化剂的气氛下煅烧,用至少一种金属化合物的溶液浸渍,在 氧化剂的气氛,并通过在高温下与接触氢的气体接触而形成活性催化剂。 该方法再生并增强了负载和分散的活性金属(DAM)催化剂。 首先处理通过该方法增强的使用的催化剂以降低它们的烃含量。 处理可以在单个反应器中进行,或者在催化剂可以从反应器中取出并返回到至少一个反应器之后,最好在其操作期间进行到所有步骤。 直到所有步骤都可以在随后的反应器中或在专门的装置中进行。

    Method for reactivating solid catalysts used in alkylation reactions
    9.
    发明授权
    Method for reactivating solid catalysts used in alkylation reactions 失效
    烷基化反应中使用的固体催化剂再活化方法

    公开(公告)号:US06887813B2

    公开(公告)日:2005-05-03

    申请号:US10412806

    申请日:2003-04-09

    IPC分类号: B01J38/00 B01J38/56 B01J20/34

    CPC分类号: B01J38/56 B01J2038/005

    摘要: A method for reactivating a solid alkylation catalyst is provided which can be performed within a reactor that contains the alkylation catalyst or outside the reactor. Effective catalyst reactivation is achieved whether the catalyst is completely deactivated or partially deactivated. A fluid reactivating agent is employed to dissolve catalyst fouling agents and also to react with such agents and carry away the reaction products. The deactivated catalyst is contacted with the fluid reactivating agent under pressure and temperature conditions such that the fluid reactivating agent is dense enough to effectively dissolve the fouling agents and any reaction products of the fouling agents and the reactivating agent. Useful pressures and temperatures for reactivation include near-critical, critical, and supercritical pressures and temperatures for the reactivating agent. The fluid reactivating agent can include, for example, a branched paraffin containing at least one tertiary carbon atom, or a compound that can be isomerized to a molecule containing at least one tertiary carbon atom.

    摘要翻译: 提供了可以在含有烷基化催化剂的反应器中或在反应器外部进行的重新活化固体烷基化催化剂的方法。 无论催化剂是完全失活还是部分失活,都能实现有效的催化剂再活化。 使用流体再活化剂来溶解催化剂污垢剂,并且与这些试剂反应并携带反应产物。 失活的催化剂在压力和温度条件下与流体再生剂接触,使得流体再活化剂足够致密以有效地溶解污垢剂和污垢剂和再活化剂的任何反应产物。 重新激活的有用的压力和温度包括重新激活剂的近临界,临界和超临界压力和温度。 流体再活化剂可以包括例如含有至少一个叔碳原子的支链烷烃,或可以异构化成含有至少一个叔碳原子的分子的化合物。

    Method and system for reactivating catalysts and a method and system for recycling supercritical fluids used to reactivate the catalysts
    10.
    发明申请
    Method and system for reactivating catalysts and a method and system for recycling supercritical fluids used to reactivate the catalysts 失效
    用于再活化催化剂的方法和系统以及用于再循环催化剂的超临界流体的方法和系统

    公开(公告)号:US20040063567A1

    公开(公告)日:2004-04-01

    申请号:US10613719

    申请日:2003-07-03

    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. 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: 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。