NOx ADSORBING APPARATUS AND EXHAUST-GAS CONVERTING APPARATUS
    101.
    发明申请
    NOx ADSORBING APPARATUS AND EXHAUST-GAS CONVERTING APPARATUS 有权
    NOx吸附装置和排气转换装置

    公开(公告)号:US20100287918A1

    公开(公告)日:2010-11-18

    申请号:US12812096

    申请日:2008-12-26

    Abstract: A first NOx adsorption material 20 exhibiting a peak temperature being 200° C. or less at which an elimination amount of adsorbed NOx becomes the maximum is put in place on an exhaust-gas upstream side, and a second NOx adsorption material 21 exhibiting a peak temperature surpassing 200° C. at which an elimination amount of adsorbed NOx becomes the maximum is put in place on an exhaust-gas downstream side of the first NOx adsorption material 20. In low-temperature region, NOx are adsorbed on the first NOx adsorption material 20; and, in high-temperature region, NOx having been eliminated from the first NOx adsorption material 21 are adsorbed on the second NOx adsorption material 21 again. Therefore, it is possible to adsorb NOx form low-temperature region and up to high-temperature region efficiently, and thereby an amount of NOx being discharged from an NOx reduction catalyst to be put in place on a downstream-side thereof is reduced.

    Abstract translation: 在废气上游侧放置表现出吸附NOx消除量达到最大值的峰值温度为200℃以下的第一NOx吸附材料20,显示峰值的第二NOx吸附材料21 在第一NOx吸附材料20的废气下游侧放置超过200℃的吸附NOx排出量最大的温度。在低温区域,NOx吸附在第一NOx吸附 材料20 并且在高温区域中,从第一NOx吸附材料21排出的NOx再次被吸附在第二NOx吸附材料21上。 因此,可以有效地将NOx形成低温区域和高温区域吸附,从而在其下游侧将从NOx还原催化剂排出的量被排出到位。

    APPARATUS AND PROCESS FOR TREATING AN AQUEOUS SOLUTION CONTAINING BIOLOGICAL CONTAMINANTS
    102.
    发明申请
    APPARATUS AND PROCESS FOR TREATING AN AQUEOUS SOLUTION CONTAINING BIOLOGICAL CONTAMINANTS 审中-公开
    处理含有生物污染物的水溶液的装置和方法

    公开(公告)号:US20100255559A1

    公开(公告)日:2010-10-07

    申请号:US12814032

    申请日:2010-06-11

    Abstract: Process, apparatus and article for treating an aqueous solution containing biological contaminants. The process includes contacting an aqueous solution containing a biological contaminant with an aggregate composition comprising an insoluble rare earth-containing compound to form a solution depleted of active biological contaminants. The aggregate includes more than 10.01% by weight of the insoluble rare earth-containing compound. The insoluble rare earth-containing compound can include one or more of cerium, lanthanum, or praseodymium. A suitable insoluble cerium-containing compound can be derived from a cerium carbonate, a cerium oxalate or a cerium salt. The composition can consist essentially of cerium oxides, and optionally, a binder and/or flow aid. The aggregate includes no more than two elements selected from the group consisting of yttrium, scandium, and europium when the aggregate is to be sintered. Although intended for a variety of fluid treatment applications, such applications specifically include removing or deactivating biological contaminants in water.

    Abstract translation: 用于处理含有生物污染物的水溶液的方法,装置和制品。 该方法包括将含有生物污染物的水溶液与包含不溶性稀土含量化合物的聚集体组合物接触以形成消耗活性生物污染物的溶液。 骨料含有不超过10.01重量%的不溶性稀土化合物。 不溶性稀土化合物可以包括铈,镧或镨中的一种或多种。 合适的不溶性含铈化合物可以衍生自碳酸铈,草酸铈或铈盐。 组合物可以主要由氧化铈和任选的粘合剂和/或流动助剂组成。 当聚集体被烧结时,聚集体包括不超过两种选自钇,钪和铕的元素。 虽然这些应用旨在用于各种流体处理应用,但具体包括去除或去除水中的生物污染物。

    AMBIENT TEMPERATURE NITROGEN OXIDE ADSORBENT
    105.
    发明申请
    AMBIENT TEMPERATURE NITROGEN OXIDE ADSORBENT 审中-公开
    环境温度氮氧化物吸附剂

    公开(公告)号:US20090163359A1

    公开(公告)日:2009-06-25

    申请号:US12096411

    申请日:2006-11-28

    Abstract: Provided is an ambient temperature NOx adsorbent. The ambient temperature NOx adsorbent comprises a support and a metal supported on the support. The support comprises at least one metal oxide selected from oxides of Co, Fe, Cu, Ce, Mn, and a combination thereof. The supported metal comprises at least one metal selected from Cu, Co, Ag, Pd, and a combination thereof. The metal oxide is easily changed the oxidation number and has oxygen absorptive/emissive properties. The supported metal has an oxidative activity and is highly adsorptive to NO. Oxygen supplied from the metal oxide converts the supported metal to a peroxidized form of the supported metal. Hence, NO is readily adsorbed to the supported metal at ambient temperature around room temperature. The adsorbed NO is easily oxidized to NO2 by oxygen supplied from the metal oxide or the supported metal in a peroxidized state in the absence of oxygen in an ambient atmosphere. The NO2 is then efficiently adsorbed to the metal oxide. That is, the ambient temperature NOx adsorbent can adsorb a sufficient amount of NOx even at ambient temperature around room temperature.

    Abstract translation: 提供了环境温度的NOx吸附剂。 环境温度NOx吸附剂包括支撑体和支撑在支撑体上的金属。 载体包括选自Co,Fe,Cu,Ce,Mn的氧化物中的至少一种金属氧化物及其组合。 负载金属包含至少一种选自Cu,Co,Ag,Pd及其组合的金属。 金属氧化物容易地改变氧化数并具有吸氧/发射性能。 负载金属具有氧化活性,对NO具有高吸附性。 从金属氧化物供应的氧将负载的金属转化为过氧化形式的负载金属。 因此,在室温附近的环境温度下,NO容易被吸附到负载的金属上。 通过在环境气氛中不存在氧气的过氧化态从金属氧化物或负载金属供给的氧,吸附的NO容易被氧化成NO2。 然后将NO 2有效地吸附到金属氧化物上。 也就是说,环境温度NOx吸附剂即使在室温附近的环境温度下也能吸附足够量的NOx。

    Apparatus and Methods for Non-Regenerative and Regenerative Hot Gas Sulfurization
    108.
    发明申请
    Apparatus and Methods for Non-Regenerative and Regenerative Hot Gas Sulfurization 有权
    非再生和再生热气体硫化的装置和方法

    公开(公告)号:US20080267848A1

    公开(公告)日:2008-10-30

    申请号:US11718864

    申请日:2005-11-08

    Abstract: Disclosed is a doped cerium oxide sorbent that can effectively and regenerably remove H2S in the temperature range of about 500° C. to about 1000° C. Regenerable sorbents (e.g., ZnO, La2O3, CeO2) and methods of using them are disclosed that allow cyclic desulfurization from about 300-500° C., 350-450° C., and at about 400° C. In one embodiment, the present invention relates to a method of desulfurizing fuel gas comprising passing the fuel gas through the sorbent at a space velocity wherein the sulfur compounds are adsorbed substantially on the surface of the sorbent; and regenerating the sorbent by passing a regenerating gas through the sorbent, wherein substantially all of the sulfur compounds are desorbed from the sorbent surface. In a further embodiment, the method of desulfurizing fuel gas further comprises repeating the aforementioned steps while the fuel processor is in operation. In another embodiment, the step of passing the fuel gas may be preceded by reducing the sorbent by passing a reducing gas through the sorbent. In another embodiment, the sorbent may be fully sulfided, i.e., sulfided on its surface and bulk (internally).

    Abstract translation: 公开了一种掺杂的氧化铈吸附剂,其可以在约500℃至约1000℃的温度范围内有效地和可再生地除去H 2 S。可再生的吸附剂(例如ZnO, 公开了使用它们的方法,其允许循环脱硫约300-500℃,350-450℃ 在一个实施方案中,本发明涉及一种使燃料气体脱硫的方法,包括使燃料气体以空间速度通过吸附剂,其中硫化合物基本上吸附在吸附剂的表面上; 以及通过使再生气体通过吸附剂来再生吸附剂,其中基本上所有的硫化合物都从吸附剂表面脱附。 在另一个实施例中,燃料气体脱硫的方法还包括在燃料处理器运行时重复上述步骤。 在另一个实施方案中,通过燃料气体的步骤之前可以通过使还原气体通过吸附剂来还原吸附剂。 在另一个实施方案中,吸附剂可以完全硫化,即在其表面上硫化并且体积(内部)。

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