WASHCOATS AND COATED SUBSTRATES FOR CATALYTIC CONVERTERS AND METHODS OF MAKING AND USING SAME
    55.
    发明申请
    WASHCOATS AND COATED SUBSTRATES FOR CATALYTIC CONVERTERS AND METHODS OF MAKING AND USING SAME 有权
    用于催化转化器的洗涤和涂覆基材及其制备和使用方法

    公开(公告)号:US20150093312A1

    公开(公告)日:2015-04-02

    申请号:US14340351

    申请日:2014-07-24

    IPC分类号: B01J29/88 B01D53/94

    摘要: Disclosed are, inter alia, methods of forming coated substrates for use in catalytic converters, as well as washcoat compositions and methods suitable for using in preparation of the coated substrates, and the coated substrates formed thereby, which in some cases use iron-exchanged zeolite particles that provide enhanced performance such as lower light-off temperatures and lower pollutant levels in exhaust gases. The catalytic material is prepared by a plasma-based method, yielding catalytic material with a lower tendency to migrate on support at high temperatures, and thus less prone to catalyst aging after prolonged use. Also disclosed are catalytic converters using the coated substrates, which have favorable properties as compared to catalytic converters using catalysts deposited on substrates using solution chemistry. Also disclosed are exhaust treatment systems, and vehicles, such as diesel vehicles, particularly light-duty diesel vehicles, using catalytic converters and exhaust treatment systems using the coated substrates.

    摘要翻译: 公开了形成用于催化转化器的涂覆基材的方法,以及适用于制备涂布基材的修补基面涂料组合物和方法,以及由此形成的涂布基材,其在一些情况下使用铁交换的沸石 提供增强性能的颗粒,例如较低的起降温度和较低的废气中的污染物含量。 催化材料通过等离子体法制备,产生在高温下在载体上迁移倾向较低的催化材料,因此在长时间使用后较不容易催化剂老化。 还公开了使用涂覆的基材的催化转化器,与使用溶液化学沉积在基板上的催化剂相比,催化转化器具有优良的性能。 还公开了排气处理系统和车辆,例如使用催化转化器的柴油车辆,特别是轻型柴油车辆,以及使用涂覆的基底的排气处理系统。

    High temperature ammonia SCR catalyst and method of using the catalyst
    58.
    发明授权
    High temperature ammonia SCR catalyst and method of using the catalyst 有权
    高温氨SCR催化剂及其使用方法

    公开(公告)号:US08802582B2

    公开(公告)日:2014-08-12

    申请号:US11731570

    申请日:2007-03-29

    IPC分类号: B01J29/06

    摘要: A catalyst and a method for selectively reducing nitrogen oxides (“NOx”) with ammonia are provided. The catalyst includes a first component comprising a zeolite or mixture of zeolites selected from the group consisting of ZSM-5, ZSM-11, ZSM-12, ZSM-18, ZSM-23, MCM-zeolites, mordenite, faujasite, ferrierite, zeolite beta, and mixtures thereof; a second component comprising at least one member selected from the group consisting of cerium, iron, copper, gallium, manganese, chromium, cobalt, molybdenum, tin, rhenium, tantalum, osmium, barium, boron, calcium, strontium, potassium, vanadium, nickel, tungsten, an actinide, mixtures of actinides, a lanthanide, mixtures of lanthanides, and mixtures thereof; optionally an oxygen storage material and optionally an inorganic oxide. The catalyst selectively reduces nitrogen oxides to nitrogen with ammonia at high temperatures. The catalyst has high hydrothermal stability. The catalyst has high activity for conversion of low levels of nitrogen oxides in exhaust streams. The catalyst and the method may have special application to selective reduction of nitrogen oxides in exhaust gas from gas turbines and gas engines, although the catalyst and the method have broad application to a wide range of gas streams that have excess oxygen and high temperatures. The temperature of exhaust gas from gas turbines and gas engines is high. Both the high temperature and the low levels of inlet NOx are challenging for selective catalytic reduction (SCR) catalysts.

    摘要翻译: 提供了用氨选择还原氮氧化物(“NOx”)的催化剂和方法。 催化剂包括第一组分,其包含选自ZSM-5,ZSM-11,ZSM-12,ZSM-18,ZSM-23,MCM-沸石,丝光沸石,八面沸石,镁碱沸石,沸石的沸石或沸石混合物 β及其混合物; 包含选自铈,铁,铜,镓,锰,铬,钴,钼,锡,铼,钽,锇,钡,硼,钙,锶,钾,钒中的至少一种的第二组分, 镍,钨,锕系元素,锕系元素的混合物,镧系元素,镧系元素的混合物及其混合物; 任选的储氧材料和任选的无机氧化物。 该催化剂在高温下用氨选择性还原氮氧化物至氮气。 该催化剂具有很高的水热稳定性。 该催化剂具有高的活性,用于转化废气流中低含量的氮氧化物。 催化剂和方法可以特别适用于选择性还原来自燃气轮机和燃气发动机的废气中的氮氧化物,尽管催化剂和方法广泛应用于具有过量氧气和高温的多种气流。 燃气轮机和燃气发动机的废气温度高。 入口NOx的高温和低水平都是选择性催化还原(SCR)催化剂的挑战。

    UREA SOLUTION REFORMER AND EXHAUST GAS PURIFIER USING SAME
    59.
    发明申请
    UREA SOLUTION REFORMER AND EXHAUST GAS PURIFIER USING SAME 有权
    UREA解决方案改造器和使用相同的排气净化器

    公开(公告)号:US20140047821A1

    公开(公告)日:2014-02-20

    申请号:US14005096

    申请日:2012-03-14

    IPC分类号: F01N3/10

    摘要: Disclosed is a urea solution reformer and an exhaust gas purifier using the same, configured to heat a carrier gas supplied from a carrier gas source by a carrier gas heating unit (16), to inject the carrier gas heated by the carrier gas heating unit from a carrier gas injecting nozzle (17), and to cause a urea solution (18) to be supplied by a first urea solution supply nozzle (21) to a tip end of the carrier gas injecting nozzle so that the urea solution is atomized by the carrier gas injected from the carrier gas injecting nozzle. Provided to face toward the carrier gas injecting nozzle is a catalyst unit (23) for decomposing the atomized urea solution to reform it into an ammonia gas. Further provided is an ammonia gas supply nozzle (24) attached to an exhaust pipe (12) of an engine so as to supply the ammonia gas discharged from an outlet of the catalyst unit into the exhaust pipe. The urea solution is sufficiently atomized, and thus reformed into an ammonia gas by the catalyst unit with a good efficiency.

    摘要翻译: 公开了一种尿素溶液重整器和使用该尿素溶液重整器的废气净化器,其被构造成通过载气加热单元(16)加热由载气源供给的载气,以将由载气加热单元加热的载气从 载气注入喷嘴(17),并且通过第一尿素溶液供给喷嘴(21)将尿素溶液(18)供给到载气注入喷嘴的前端,使得尿素溶液被 从载气喷射喷嘴喷射载气。 面向载气注入喷嘴的是用于分解雾化的尿素溶液以将其重整成氨气的催化剂单元(23)。 还提供了附接到发动机的排气管(12)的氨气供给喷嘴(24),以将从催化剂单元的出口排出的氨气供应到排气管中。 尿素溶液充分雾化,由此,催化剂单元以良好的效率将氨气体重整成氨气。

    Hydrocracking method using a modified zeolite
    60.
    发明授权
    Hydrocracking method using a modified zeolite 有权
    使用改性沸石的加氢裂化方法

    公开(公告)号:US08647499B2

    公开(公告)日:2014-02-11

    申请号:US12903573

    申请日:2010-10-13

    申请人: Laurent Simon

    发明人: Laurent Simon

    摘要: The present invention describes a method for hydrocracking and/or hydrotreating hydrocarbon-containing feeds using a catalyst comprising at least one hydro-dehydrogenizing metal selected from the group made up of group VIB and non-noble group VIII metals of the periodic table and a support comprising at least one zeolite having at least pore openings containing 12 oxygen atoms, modified by a) at least a stage of introducing at least one alkaline cation belonging to groups IA or IIA of the periodic table, b) a stage of treating said zeolite in the presence of at least one molecular compound containing at least one silicon atom, c) at least one stage of partial exchange of said alkaline cations by NH4+ cations in such a way that the proportion of alkaline cations remaining in the modified zeolite at the end of stage c) is such that the alkaline cation/aluminum molar ratio ranges between 0.2:1 and 0.01:1, and d) at least one thermal treatment stage.

    摘要翻译: 本发明描述了一种使用包含至少一种选自元素周期表VIB族和非贵族VIII族金属的加氢脱氢金属的催化剂加氢裂化和/或加氢处理含烃原料的方法, 包括至少一种沸石,其至少具有含有12个氧原子的孔隙,通过a)至少引入至少一种属于周期表的IA或IIA族的碱性阳离子的阶段,b)将所述沸石处理的阶段 存在至少一种含有至少一个硅原子的分子化合物,c)至少一个阶段通过NH 4 +阳离子部分交换所述碱性阳离子,使得残留在改性沸石中末端的碱性阳离子的比例 阶段c)使得碱性阳离子/铝的摩尔比在0.2:1和0.01:1之间,d)至少一个热处理阶段。