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    PROCESS AND DEVICE FOR DECOMPOSING LAUGHING GAS
    3.
    发明申请
    PROCESS AND DEVICE FOR DECOMPOSING LAUGHING GAS 有权
    用于分解气体的方法和装置

    公开(公告)号：US20120063982A1

    公开(公告)日：2012-03-15

    申请号：US13144227

    申请日：2010-01-05

    申请人： Ulrike Wenning ,  Hans-Jörg Zander ,  Anton Wellenhofer ,  Karl-Heinz Hofmann ,  Wibke Korn ,  Franz Beran ,  Nicole Schödel ,  Wolfgang Schmehl

    发明人： Ulrike Wenning ,  Hans-Jörg Zander ,  Anton Wellenhofer ,  Karl-Heinz Hofmann ,  Wibke Korn ,  Franz Beran ,  Nicole Schödel ,  Wolfgang Schmehl

    IPC分类号： B01D53/56

    CPC分类号： C01B21/22 ,  A61M16/009 ,  A61M16/0093 ,  A61M2202/0283 ,  B01D53/8631 ,  B01D2257/402 ,  B01D2259/4533 ,  B01J23/40 ,  C01B21/02 ,  Y02C20/10 ,  Y02P20/153

    摘要： The laughing-gas-containing gas (1) is diluted by means of a diluting gas (2). The diluting gas (2) is virtually free from water fractions in the dryer (3). After feed of the diluting gas (2) via the feed line (13), exhaust gas (8) from the catalytic decomposition (7) is added (4) to the laughing-gas-containing feed gas (12). After addition (4) of the exhaust gas (8) from the catalytic decomposition of laughing gas (7), the laughing-gas-containing feed gas (12) is compressed (5) and passed to the heat exchanger (6). In the heat exchanger (6) the laughing-gas-containing feed gas (12) is preheated by heat exchange with the exhaust gas (8). The exhaust gas (8) is cooled in the heat exchanger (6) in this process. The preheated laughing-gas-containing feed gas (12) is passed via a further optional heater (11) as a feed to the catalytic laughing gas decomposition (7). In order to avoid a concentration build-up, some of the exhaust gas (8) is passed out (9) of the process. The exhaust gas (8) is further cooled by a further optional heat exchanger (10). The additional cooling by means of the heat exchanger (10) ensures that subsequent appliances such as the compressor are protected against overheating. By means of the heat exchanger (10), the permissible temperature of that part of the exhaust gas (8) which is released (9) to the atmosphere can also be controlled here. For optimal control of the intake temperature of the laughing-gas-containing feed gas (12) into the catalytic decomposition (7), at least some of the laughing-gas-containing feed gas (12) can bypass the heat exchanger (6) using a bypass (14).

    摘要翻译： 含气味气体（1）通过稀释气体（2）稀释。 稀释气体（2）在干燥器（3）中几乎没有水分。 在通过进料管线（13）进料稀释气体（2）之后，向含笑气的进料气体（12）中加入来自催化分解（7）的废气（8）（4）。 在从气体（7）的催化分解中加入（4）废气（8）后，将含笑气的进料气体（12）压缩（5）并通入热交换器（6）。 在热交换器（6）中，通过与废气（8）的热交换来预热含笑气体的进料气体（12）。 在该过程中，排气（8）在热交换器（6）中被冷却。 预热的含笑气体的进料气体（12）通过另外的任选的加热器（11）作为催化气体分解的进料（7）通过。 为了避免浓度积聚，一部分废气（8）被排出（9）。 废气（8）通过另外的任选的热交换器（10）进一步冷却。 通过热交换器（10）的附加冷却确保了后续的诸如压缩机的设备被保护以免过热。 通过热交换器（10），也可以控制排放到大气中的废气（8）部分的允许温度（9）。 为了将含笑气的进料气体（12）的进气温度最佳控制到催化分解（7）中，至少一些含气味的进料气体（12）可绕过热交换器（6） 使用旁路（14）。

    APPARATUS AND PROCESS FOR DECOMPOSING DINITROGEN MONOXIDE IN AN ADIABATIC FIXED BED REACTOR
    4.
    发明申请
    APPARATUS AND PROCESS FOR DECOMPOSING DINITROGEN MONOXIDE IN AN ADIABATIC FIXED BED REACTOR 有权
    在固定床反应器中分解一氧化氮的装置和方法

    公开(公告)号：US20120014855A1

    公开(公告)日：2012-01-19

    申请号：US13144224

    申请日：2010-01-05

    申请人： Franz Beran ,  Karl-Heinz Hofmann ,  Nicole Schödel ,  Wolfgang Schmehl ,  Ulrike Wenning ,  Hans-Jörg Zander

    发明人： Franz Beran ,  Karl-Heinz Hofmann ,  Nicole Schödel ,  Wolfgang Schmehl ,  Ulrike Wenning ,  Hans-Jörg Zander

    IPC分类号： B01D53/56 ,  B01J19/00

    CPC分类号： C01B21/22 ,  A61M16/009 ,  A61M16/0093 ,  A61M2202/0283 ,  B01D53/8631 ,  B01D2257/402 ,  B01D2259/4533 ,  B01J23/40 ,  C01B21/02 ,  Y02C20/10 ,  Y02P20/153

    摘要： The invention relates to an apparatus and to a process for decomposing dinitrogen monoxide. The apparatus comprises a gas inlet 1 for supplying a nitrogen monoxide-containing gas, a first heat exchange medium 3 for exchanging heat between an offgas and the nitrogen monoxide-containing gas, a heating apparatus 4 for occasional heating of the nitrogen monoxide-containing gas, a fixed bed reactor 5 in which a catalyst is accommodated, in order to decompose the dinitrogen monoxide in the dinitrogen monoxide-containing gas, a gas outlet through which the offgas leaving the fixed bed reactor can be conducted out via the heat exchange medium 3. According to the invention, the catalyst is suitable for decomposing dinitrogen monoxide at temperatures below 800° C., especially preferably below 450° C., more preferably below 400° C. The fixed bed reactor 5 is configured for operation in an adiabatic state.

    摘要翻译： 本发明涉及一种用于分解一氧化二氮的装置和方法。 该装置包括用于供给一氧化二氮气体的气体入口1，用于在废气和含一氧化碳气体之间交换热的第一热交换介质3，用于偶尔加热含一氧化碳的气体的加热装置4 ，其中容纳有催化剂的固定床反应器5，以便分解一氧化二氮气体中的一氧化二氮，可以通过热交换介质3将出口离开固定床反应器的废气通过出口排出气体出口 根据本发明，催化剂适用于在低于800℃，特别优选低于450℃，更优选低于400℃的温度下分解一氧化二氮。固定床反应器5构造成在绝热状态下操作 。

    Removal of nitrogen oxides from gases
    6.
    发明授权
    Removal of nitrogen oxides from gases 失效
    从气体中去除氮氧化物

    公开(公告)号：US5955045A

    公开(公告)日：1999-09-21

    申请号：US874662

    申请日：1997-06-13

    申请人： Karl Baur ,  Hans-Peter Langebach ,  Hartmut Neumann ,  Ulrike Wenning

    发明人： Karl Baur ,  Hans-Peter Langebach ,  Hartmut Neumann ,  Ulrike Wenning

    IPC分类号： B01D53/56 ,  C07C7/148 ,  C10G70/04 ,  B01D53/02

    CPC分类号： C07C7/1485 ,  B01D53/565 ,  C10G70/046

    摘要： For selectively removing nitrogen oxides from a carrier gas that contains hydrocarbons, the nitrogen oxides are removed by chemisorption on metal oxides, without the occurrence of undesirable secondary reactions. The metal oxides are preferably formed from metals of the 6th to 8th subgroups, whereby manganese dioxide (MnO.sub.2,) is especially preferred as a metal oxide. The process can be conducted with one or more reactor beds, which preferably operate at 10 to 40.degree. C. and are regenerated with nitrogen at a temperature of 130 to 170.degree. C.By removing nitrogen oxides from an olefin-rich gas, for example from the waste gas of an FCC unit, the resultant gas can then be fed to a cryogenic olefin extraction stage without danger of explosion.Such a waste gas contains unsaturated hydrocarbons, hydrogen, carbon monoxide, and oxygen, the oxygen having a concentration preferably between 100 and 5000 mol ppm.

    摘要翻译： 为了从含有烃的载气中选择性地除去氮氧化物，通过金属氧化物上的化学吸附除去氮氧化物，而不会发生不希望的二次反应。 金属氧化物优选由第6〜8族的金属形成，特别优选二氧化锰（MnO 2）作为金属氧化物。 该方法可以用一个或多个反应器床进行，优选在10至40℃下操作，并在130-170℃的温度下用氮气再生。通过从富含烯烃的气体中除去氮氧化物，例如 从FCC装置的废气中获得的气体可以被送入低温烯烃提取阶段而不会有爆炸的危险。 这样的废气含有不饱和烃，氢，一氧化碳和氧，氧浓度优选为100-5000mol ppm。