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    • 11. 发明授权
    • Method of abating NO.sub.x and preparation of catalytic material therefor
    • 降低NOx的方法及其催化剂的制备
    • US06150291A
    • 2000-11-21
    • US250652
    • 1999-02-16
    • Michel DeebaJennifer S. FeeleyRobert J. Farrauto
    • Michel DeebaJennifer S. FeeleyRobert J. Farrauto
    • B01D53/86B01D53/94B01J29/40B01J29/44B01J29/70B01J29/04
    • B01J29/44B01D53/9418B01D2251/208B01D2255/1021B01D2255/1026B01D2255/502B01D2255/504B01D2255/912Y02C20/10
    • A method for reducing gaseous nitrogen oxides present in a gas stream by reaction with a reductant species is practiced by flowing the gas stream under lean NO.sub.X -reducing conditions in contact with a catalytic material containing a catalytically effective amount of a catalytic species, e.g., a platinum group metal, and a reductant storage material, e.g., a zeolite, effective for storing reductant species for reaction with NO.sub.X, and providing an intermittent supply of the reductant to the gas stream. The catalytic material may be prepared in any manner, but one method is to incorporate a catalytically effective amount of the platinum into a template-bearing molecular sieve material, preferably ZSM-5, to hinder the platinum from being incorporated into the pores of the molecular sieve material, and then calcining the molecular sieve material, whereby the template is removed from the molecular sieve material after the platinum is incorporated therein. Another method is to add a blocking agent to the molecular sieve material, then incorporate the platinum therein, and then calcine the material to remove the blocking agent. The catalytic material may contain less than about two percent by weight of zeolite plus platinum, e.g., less than about 0.5%, or from about 0.025% to 0.1% or 0.2% platinum.
    • 通过与还原剂物质反应来还原存在于气流中的气态氮氧化物的方法是通过在贫NOX还原条件下与含有催化有效量的催化物质(例如, 铂族金属和还原剂储存材料,例如有效地存储用于与NOX反应的还原剂物质的沸石,以及向气流中间歇地供应还原剂。 催化材料可以以任何方式制备,但是一种方法是将催化有效量的铂掺入含模板的分子筛材料,优选ZSM-5中,以阻止铂结合到分子的孔中 筛分材料,然后煅烧分子筛材料,由此在引入铂后,从分子筛材料中除去模板。 另一种方法是向分子筛材料中加入封闭剂,然后在其中加入铂,然后煅烧该材料以除去封闭剂。 催化材料可以含有小于约2重量%的沸石加铂,例如小于约0.5%,或约0.025%至0.1%或0.2%的铂。
    • 13. 发明授权
    • Method of abating NO.sub.x and a catalytic material therefor
    • 减轻NOx及其催化材料的方法
    • US6080377A
    • 2000-06-27
    • US430065
    • 1995-04-27
    • Michel DeebaJennifer S. FeeleyRobert J. Farrauto
    • Michel DeebaJennifer S. FeeleyRobert J. Farrauto
    • B01D53/86B01D53/94B01J29/40B01J29/44B01J29/70B01J8/00
    • B01J29/44B01D53/9418B01D2251/208B01D2255/1021B01D2255/1026B01D2255/502B01D2255/504B01D2255/912Y02C20/10
    • A method for reducing gaseous nitrogen oxides present in a gas stream by reaction with a reductant species is practiced by flowing the gas stream under lean NO.sub.X -reducing conditions in contact with a catalytic material containing a catalytically effective amount of a catalytic species, e.g., a platinum group metal, and a reductant storage material, e.g., a zeolite, effective for storing reductant species for reaction with NO.sub.X, and providing an intermittent supply of the reductant to the gas stream. The catalytic material may be prepared in any manner, but one method is to incorporate a catalytically effective amount of the platinum into a template-bearing molecular sieve material, preferably ZSM-5 zeolite, to hinder the platinum from being incorporated into the pores of the molecular sieve material, and then calcining the molecular sieve material, whereby the template is removed from the molecular sieve material after the platinum is incorporated therein. Another method is to add a blocking agent to the molecular sieve material, then incorporate the platinum therein, and then calcine the material to remove the blocking agent. The catalytic material may contain less than about two percent by weight of zeolite plus platinum, e.g., less than about 0.5%, or from about 0.025% to 0.1% or 0.2% platinum.
    • 通过与还原剂物质反应来还原存在于气流中的气态氮氧化物的方法是通过在贫NOX还原条件下与含有催化有效量的催化物质(例如, 铂族金属和还原剂储存材料,例如有效地存储用于与NOX反应的还原剂物质的沸石,以及向气流中间歇地供应还原剂。 催化材料可以以任何方式制备,但是一种方法是将催化有效量的铂掺入含模板的分子筛材料,优选ZSM-5沸石中,以阻止铂被引入到 分子筛材料,然后煅烧分子筛材料,由此在引入铂后,从分子筛材料中除去模板。 另一种方法是向分子筛材料中加入封闭剂,然后在其中加入铂,然后煅烧该材料以除去封闭剂。 催化材料可以含有小于约2重量%的沸石加铂,例如小于约0.5%,或约0.025%至0.1%或0.2%的铂。
    • 16. 发明授权
    • Catalytic partial oxidation using staged oxygen addition
    • 使用分期加氧的催化部分氧化
    • US06726850B1
    • 2004-04-27
    • US09484378
    • 2000-01-14
    • Sebastian C. ReyesJennifer S. FeeleyFrank HershkowitzHarry W. DeckmanIoannis P. Androulakis
    • Sebastian C. ReyesJennifer S. FeeleyFrank HershkowitzHarry W. DeckmanIoannis P. Androulakis
    • C01B326
    • C01B3/386C01B2203/0261C01B2203/061C01B2203/062C01B2203/065C01B2203/1011C01B2203/1029C01B2203/1052C01B2203/1064C01B2203/1082C01B2203/1241C01B2203/1276
    • A multistage catalytic partial oxidation (CPO) process for oxidizing a hydrocarbon feedstream comprising C1-C4 hydrocarbons, with an oxygen-containing feedstream to produce a product comprising CO and H2, also known as synthesis gas or syngas. The process employs a CPO catalyst, and controlled process features, including: (A) the total oxygen requirement for the process is introduced incrementally, in more than one reaction stage, using an oxygen-containing feedstream at more than one feed point in the process, each stage including a catalyst; (B) the oxygen-containing feedstream, hydrocarbon feedstream and, in reaction stages after the first of said multiple stages, the intermediate product produced in the prior stage, are mixed for a period of time, after they are brought into contact with one another, of less than about 1 millisecond to form a substantially uniform mixture, wherein the mixture is then contacted with the catalyst; (C) the oxygen-containing feedstream and the hydrocarbon feedstream are preheated prior to entry into the first stage, to a temperature of from about 450° C. to less than about 1,000° C.; and (D) the mixture temperature of the product in each stage following the first stage is from greater than about 600° C. to less than about 1,000° C. Preferably, the process comprises less than or equal to about five stages, the first stage preheat temperature recited in step (C) is greater than about 550° C. and the mixture temperature of the product in each stage following the first stage is at least 700° C.
    • 用于将包含C1-C4烃的烃进料流与含氧进料流氧化以产生包含CO和H 2的产物(也称为合成气或合成气)的多级催化部分氧化(CPO)方法。 该方法采用CPO催化剂和受控工艺特征,包括:(A)在多于一个反应阶段中,使用含氧进料流在多于一个进料点的过程中逐步引入该方法的总氧需求量 ,每个阶段包括催化剂; (B)含氧进料流,烃类原料流,在上述多阶段第一阶段后的反应阶段中,将前一阶段生产的中间产物在彼此接触后混合一段时间 ,小于约1毫秒以形成基本均匀的混合物,其中混合物然后与催化剂接触; (C)在进入第一阶段之前将含氧进料流和烃进料流预热至约450℃至小于约1,000℃的温度; 和(D)在第一阶段之后的每个阶段中的产物的混合物温度为大于约600℃至小于约1000℃。优选地,该方法包括小于或等于约五个阶段,第一阶段 步骤(C)中所述的阶段预热温度大于约550℃,并且在第一阶段之后的每个阶段中的产品的混合物温度为至少700℃