Method for purifying a gas stream
    12.
    发明授权
    Method for purifying a gas stream 失效
    纯化气流的方法

    公开(公告)号:US06548031B1

    公开(公告)日:2003-04-15

    申请号:US09700291

    申请日:2000-12-21

    IPC分类号: B01D5334

    摘要: The invention relates to a method for purifying a gas stream containing impurities composed of organic compounds, said gas stream flowing out of a reactor (1) designed for solid phase condensation, preferably for aromatic polyesters and polyamides. According to said method, a gas containing at least oxygen is fed to the gas stream containing the impurities. The combined gas stream is then conveyed, at a high temperature, especially from 280° C. to 380° C., onto a catalyst (8) containing rhodium or a rhodium alloy on an inert porous support. It was found advantageous that the amount of oxygen used be hypo stoichiometric, in relation to the organic impurities, and/or that the ratio of oxygen to impurities be controlled by means of a lambda probe (A). Such a lambda probe (A) is used in a facility according to the invention.

    摘要翻译: 本发明涉及一种纯化含有由有机化合物组成的杂质的气流的方法,所述气流从设计用于固相冷凝的反应器(1)中流出,优选用于芳族聚酯和聚酰胺。 根据所述方法,至少含有氧的气体被供给到含杂质的气流中。 然后将合并的气流在高温下,特别是280℃至380℃,在含有铑或铑合金的催化剂(8)上惰性多孔载体上输送。 发现使用的氧的量相对于有机杂质为低的化学计量比,和/或通过λ探针(A)控制氧与杂质的比例是有利的。 这种λ探针(A)用于根据本发明的设备中。

    System and process for gas recovery
    13.
    发明授权
    System and process for gas recovery 有权
    气体回收系统和工艺

    公开(公告)号:US06517791B1

    公开(公告)日:2003-02-11

    申请号:US09727475

    申请日:2000-12-04

    申请人: Scot Eric Jaynes

    发明人: Scot Eric Jaynes

    IPC分类号: B01D5334

    摘要: This invention is directed to a three-stage process for recovering and purifying a helium gas, and a system for using the three-stage process. The steps comprises a) introducing a gas from a cold spray forming chamber to a particulate removing apparatus to form a particulate-free helium gas, and recycling a first portion of the particulate-free helium gas back to the chamber; b) passing a second portion of the particulate-free helium gas to a first compressor prior to passing a helium gas purification membrane to form a purified helium gas and an exhaust gas, and passing the purified helium gas to mix with the first portion of particulate-free helium gas to the chamber; and c) passing a third portion of the particulate-free helium gas to a liquid separator apparatus to remove water and a receiver to dampen any pulsation to form a liquid-free helium gas, and recycling the liquid-free helium gas to said cold spray forming chamber.

    摘要翻译: 本发明涉及一种用于回收和纯化氦气的三级方法,以及使用三级方法的系统。 这些步骤包括a)将气体从冷喷雾形成室引入到颗粒去除装置中,以形成无颗粒的氦气,并将第一部分无颗粒的氦气再循环回该室; b)在通过氦气净化膜以形成纯化的氦气和废气之前,将第二部分无颗粒的氦气通入第一压缩机,并将纯化的氦气与第一部分颗粒混合 - 空气中的氦气; 和c)将第三部分无颗粒的氦气通入液体分离器装置以除去水和接收器以抑制任何脉动以形成无液氦气,并将无液氦气再循环到所述冷喷雾 成型室。

    Method of making a catalytic converter for use in an internal combustion engine
    14.
    发明授权
    Method of making a catalytic converter for use in an internal combustion engine 失效
    制造用于内燃机的催化转化器的方法

    公开(公告)号:US06389693B1

    公开(公告)日:2002-05-21

    申请号:US09209998

    申请日:1998-12-11

    IPC分类号: B01D5334

    摘要: Disclosed is a method of manufacturing a catalytic converter for purifying exhaust gases from an internal combustion engine wherein the converter exhibits a monolithic ceramic substrate surrounded by a supporting mat. The method generally includes the steps of: Forming a catalytic converter utilizing a compressive closing method generally involves wrapping the substrate in a sufficient amount of supporting mat material and inserting the wrapped substrate into generally cylindrical metal container, compressively closing the container around the wrapped substrate sufficiently to provide a gas tight seal and to hold the imparted compressive stress. The present invention further discloses an improvement involving compressively closing the container around the wrapped substrate by resizing the container over substantially the entire portion of its length which is occupied by the wrapped substrate to a predetermined metal shell/container outside diameter OD. The predetermined outside diameter is characterized by the equation OD=D+2T1+2T2, wherein D is a diameter measure of the substrate, T1 is the supporting mat target thickness and T2 is a container wall thickness measure.

    摘要翻译: 公开了一种制造用于净化来自内燃机的废气的催化转化器的方法,其中转炉呈现由支撑垫包围的单片陶瓷基板。 该方法通常包括以下步骤:使用压缩闭合方法形成催化转化器通常包括将基底包裹在足够量的支撑垫材料中,并将包裹的基底插入大致圆柱形的金属容器中,将包裹的基底周围的容器压缩封闭 以提供气密密封并保持赋予的压缩应力。 本发明进一步公开了一种改进,涉及通过将容器的长度大致整个部分的大小调整到被包裹的基底占据预定的金属外壳/容器外径OD的方式来围绕包裹的基底压缩地关闭容器。 预定的外径的特征在于方程式OD = D + 2T1 + 2T2,其中D是基板的直径测量,T1是支撑垫目标厚度,T2是容器壁厚测量。

    System for exhaust gas purification
    15.
    发明授权
    System for exhaust gas purification 失效
    废气净化系统

    公开(公告)号:US06350416B2

    公开(公告)日:2002-02-26

    申请号:US09093789

    申请日:1998-06-09

    IPC分类号: B01D5334

    摘要: A system for exhaust gas purification disposed in the exhaust pipe of an internal combustion engine, includes an adsorbent formed by loading, on a monolithic carrier, (1) a zeolite containing at least one kind of ion of an element having an electronegativity of 1.40 or more and (2) a catalyst material formed by loading at least one kind of noble metal selected from Pt, Pd and Rh on a heat-resistant inorganic oxide, and at least one loaded carrier formed by loading, on a monolithic carrier, a catalyst component having a purifiability for the harmful substances present in the exhaust gas emitted from the engine and/or an adsorbent component having an adsorptivity for the hydrocarbons also present in the exhaust gas, the loaded carrier being provided upstream of the adsorbent in the flow direction of the exhaust gas and having a total volume of 0.6 l or more. In this system for exhaust gas purification, the thermal deterioration of the adsorbent is reduced because there is used an adsorbent of higher HC desorption start temperature and because the thermal load applied to the adsorbent is decreased by the use of a particular means.

    摘要翻译: 一种设置在内燃机的排气管中的废气净化系统,包括通过在整体式载体上装载(1)含有至少一种具有1.40的电负性的元素的离子的沸石形成的吸附剂,或 更多和(2)通过将选自Pt,Pd和Rh中的至少一种贵金属负载在耐热无机氧化物上形成的催化剂材料,以及通过在整体式载体上负载催化剂形成的至少一种负载载体 具有对从发动机排出的排气中存在的有害物质具有可净化性的成分和/或对废气中也存在的具有对烃的吸附性的吸附剂成分,负载载体在吸附剂的流动方向上游侧设置 废气,总体积为0.6l以上。 在这种废气净化系统中,由于使用HC解吸开始温度较高的吸附剂,因为通过使用特定的方法降低了对吸附剂的热负荷,所以吸附剂的热劣化降低。

    Method for reducing NOX in combustion flue gas using metal-containing additives
    16.
    发明授权
    Method for reducing NOX in combustion flue gas using metal-containing additives 有权
    使用含金属添加剂减少燃烧烟气中的NOx的方法

    公开(公告)号:US06206685B1

    公开(公告)日:2001-03-27

    申请号:US09387631

    申请日:1999-08-31

    IPC分类号: B01D5334

    摘要: Various methods for decreasing the amount of nitrogen oxides released to the atmosphere as a component of combustion gas mixtures are provided. The methods specifically provide for the removal of nitric oxide and nitrogen dioxide (NOx) from gas mixtures emitted from stationary combustion systems. In particular, methods for improving efficiency of nitrogen oxide reduction from combustion systems include injecting metal-containing compounds into the main combustion zone and/or the reburning zone of a combustion system. The metal containing compounds react with active combustion species, and these reactions change radical concentrations and significantly improve NOx conversion to molecular nitrogen. The metal-containing additives can be injected with the main fuel, in the main combustion zone, with secondary or reburning fuel addition, or at several locations in the main combustion zone and reburning zone. Optionally, nitrogenous reducing agents and/or overfire air can be injected downstream to further increase NOx reduction.

    摘要翻译: 提供了用于减少作为燃烧气体混合物的组分释放到大气中的氮氧化物的量的各种方法。 该方法专门提供从固定燃烧系统排放的气体混合物中去除一氧化氮和二氧化氮(NOx)。 特别地,用于提高燃烧系统中氮氧化物还原效率的方法包括将含金属化合物注入燃烧系统的主燃烧区和/或再燃烧区。 含金属化合物与活性燃烧物质反应,这些反应改变自由基浓度,并显着提高NOx转化为分子氮。 在主燃烧区域中,含金属添加剂可以与主要燃料一起注入二次燃烧或再燃燃料添加剂,或在主燃烧区域和再燃烧区域的多个位置。 任选地,可以向下游注入含氮还原剂和/或过量空气以进一步增加NOx还原。

    Exhaust gas system suitable for retrofitting exhaust gas catalytic converters in motorcycles
    17.
    发明授权
    Exhaust gas system suitable for retrofitting exhaust gas catalytic converters in motorcycles 失效
    排气系统适用于改装摩托车废气催化转化器

    公开(公告)号:US06200538B1

    公开(公告)日:2001-03-13

    申请号:US09096979

    申请日:1998-06-12

    IPC分类号: B01D5334

    CPC分类号: F01N13/1811 F01N3/28

    摘要: The exhaust gas system has an exhaust gas catalytic converter, through which exhaust gases of an internal combustion engine can flow for catalytic conversion of the exhaust gases. The catalytic converter is disposed between two exhaust gas line segments, each forming one line connection with the catalytic converter and each contacting a stop face of the exhaust gas catalytic converter. A bracing element engages at least one of the exhaust gas line segments and braces the catalytic converter between the exhaust gas line segments. The system is particularly suitable for economical retrofitting of exhaust gas catalytic converters in motor cycles.

    摘要翻译: 废气系统具有排气催化转化器,内燃机的废气可以通过该排气催化转化器流动,用于催化转化废气。 催化转化器设置在两个废气管线段之间,每个废气管线段与催化转化器形成一个线路连接,并且每个与催化转化器的停止面接触。 支撑元件与废气管线段中的至少一个接合并且在废气管线段之间支撑催化转化器。 该系统特别适用于经济改造马达循环中的废气催化转化器。

    Variable flow regulator for use with gas treatment devices
    18.
    发明授权
    Variable flow regulator for use with gas treatment devices 失效
    用于气体处理装置的可变流量调节器

    公开(公告)号:US06833116B2

    公开(公告)日:2004-12-21

    申请号:US09883728

    申请日:2001-06-18

    IPC分类号: B01D5334

    摘要: A gas treatment system comprises a variable flow regulator assembly placed in operable and fluid communication with a shell of a gas treatment device. The variable flow regulator assembly comprises two or more conduit portions comprising a first portion and a second portion, wherein the second portion has a coefficient of thermal expansion greater than a first coefficient of thermal expansion of the first portion. The variable flow regulator assembly structurally changes shape to alter the flow maldistribution of an exhaust gas stream into the gas treatment device when light off is achieved.

    摘要翻译: 气体处理系统包括可变流量调节器组件,该可变流量调节器组件设置成与气体处理装置的壳体可操作和流体连通。 可变流量调节器组件包括两个或更多个导管部分,其包括第一部分和第二部分,其中第二部分具有大于第一部分的第一热膨胀系数的热膨胀系数。 可变流量调节器组件结构地改变形状以改变当达到熄灭时废气流进入气体处理装置的流动分布不均匀。

    Stronger catalyst using selective washcoat location
    19.
    发明授权
    Stronger catalyst using selective washcoat location 有权
    使用选择性修补涂层位置的更强催化剂

    公开(公告)号:US06821492B1

    公开(公告)日:2004-11-23

    申请号:US09660715

    申请日:2000-09-13

    IPC分类号: B01D5334

    摘要: A strengthened thin-walled catalytic converter substrate includes thin perimeter walls and thin interior walls defining cells and a catalyst washcoat selectively disposed on the substrate. Washcoat thickness is increased in those cells having the most impact on final catalyst strength, typically the outer cells defined by the perimeter walls. A method for maximizing overall catalyst strength with minimal substrate thermal mass includes selectively applying washcoat based on desired substrate strength and converter assembly method.

    摘要翻译: 加强的薄壁催化转化器基板包括限定单元的薄的周壁和薄的内壁以及选择性地设置在基板上的催化剂涂层。 在对最终催化剂强度影响最大的细胞中,通常由外围壁限定的外部细胞,洗衣层厚度增加。 最小化基板热质量的总体催化剂强度的方法包括基于期望的基板强度和转换器组装方法选择性地施加修补基面涂层。

    System and method for abating the simultaneous flow of silane and arsine

    公开(公告)号:US06821489B1

    公开(公告)日:2004-11-23

    申请号:US09685382

    申请日:2000-10-10

    申请人: Kurt A. Carlsen

    发明人: Kurt A. Carlsen

    IPC分类号: B01D5334

    CPC分类号: B01D53/46 C23C16/4412

    摘要: A system and method for abating a simultaneous flow of silane and arsine contained in an exhaust gas of DRAM processing chamber (12). The system includes a CVD abatement apparatus (20) and a resin-type adsorber (22). The CVD abatement apparatus comprises an enclosure (24) that defines a chamber (26) for receiving the exhaust gas. The enclosure contains a plurality of removable substrates (32) arranged as a series of baffles inside the enclosure. As the exhaust gas flows through the CVD abatement apparatus, the silicon within the silane is deposited as a film upon the substrates by chemical vapor deposition. The arsine continues to flow through the CVD apparatus to the adsorber where it is adsorbed by the resin contained therein. After the film has reached a particular thickness, the substrates can be removed from the enclosure, cleaned of the film and returned to the enclosure for further use.