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    High temperature gas purification system
    23.
    发明授权
    High temperature gas purification system 失效
    高温气体净化系统

    公开(公告)号：US5888273A

    公开(公告)日：1999-03-30

    申请号：US936665

    申请日：1997-09-24

    申请人： Robert E. Buxbaum

    发明人： Robert E. Buxbaum

    IPC分类号： B01D53/22 ,  B01J4/04 ,  B01J8/00 ,  B01J8/02 ,  B01J19/00 ,  B01J19/24 ,  C01B3/32 ,  C01B3/50 ,  B01D63/06

    CPC分类号： C01B3/501 ,  B01D53/22 ,  B01D63/06 ,  B01J19/0013 ,  B01J19/243 ,  B01J19/2475 ,  B01J8/009 ,  B01J8/0285 ,  C01B3/323 ,  B01D2313/22 ,  B01D2313/42 ,  B01J2208/00176 ,  B01J2208/00203 ,  B01J2219/00063 ,  B01J2219/00065 ,  B01J2219/00078 ,  B01J2219/00081 ,  B01J2219/00083 ,  B01J2219/0009 ,  B01J2219/00094 ,  B01J2219/00132 ,  B01J2219/00153 ,  B01J2219/00155 ,  B01J2219/00159 ,  C01B2203/041 ,  C01B2203/047 ,  C01B2203/0475 ,  C01B2203/0495 ,  Y02P30/30

    摘要： A high temperature membrane reactor or gas purification apparatus includes a housing containing a gas heating chamber and a gas extraction component, preferably one or more tubular membranes. The preferred application is for extracting hydrogen from a mixed gas flow or for generating hydrogen, e.g., by reforming methanol, ethanol, or gasoline. A surrounding annulus provides heat exchange and insulation by circulating the mixed gas flow about the housing and then injecting the mixed gas flow into the housing for extraction or reaction. The apparatus further includes an outlet for releasing raffinate preferably including a flow controlling restriction. Heating is provided by conducting the raffinate from the gas extraction component to the heating chamber wherein reaction with a catalyst generates heat. These features, alone or in combination, provide better energy management, better flow management, and better safety than current designs. A spring-type support for the membrane is further described which increases the maximum useable operation pressure of the membranes to take better advantage of the membrane reactor and gas purification features.

    摘要翻译： 高温膜反应器或气体净化装置包括容纳气体加热室和气体提取组分，优选一个或多个管状膜的壳体。 优选的应用是从混合气流中提取氢气或产生氢气，例如通过重整甲醇，乙醇或汽油。 周围的环带通过围绕壳体循环混合气体流，然后将混合气体流注入壳体中以提取或反应来提供热交换和绝缘。 该装置还包括用于释放萃余液的出口，优选地包括流动控制限制。 通过将萃余液从气体萃取组分传导到加热室来提供加热，其中与催化剂反应产生热量。 这些功能单独或组合提供了更好的能源管理，更好的流程管理和更好的安全性比当前的设计。 进一步描述了膜的弹簧型载体，其增加膜的最大可用操作压力以更好地利用膜反应器和气体净化特征。

    Manufacture of high purity nitric oxide
    25.
    发明授权
    Manufacture of high purity nitric oxide 失效
    高纯氮氧化物的制造

    公开(公告)号：US3663167A

    公开(公告)日：1972-05-16

    申请号：US3663167D

    申请日：1970-09-21

    申请人： HERCULES INC

    发明人： VRY FRANK E DE

    IPC分类号： C01B21/26

    CPC分类号： C01B21/26 ,  B01J2219/00078 ,  B01J2219/00094 ,  B01J2219/00159 ,  B01J2219/00162 ,  B01J2219/00182 ,  C01B21/262

    摘要： Process, integrated with ammonia air oxidation, for the manufacture of nitric oxide of at least 99 percent purity comprising the steps of (1) effecting the ammonia oxidation, (2) maintaining maximum NO content in the oxidation effluent, and then contacting the effluent with nitric acid to convert the NO to NO2, (3) cooling the NO2 containing gas product to condense the NO2 therefrom as liquid N2O4, (4) passing the liquid N2O4 into a packed converter tower and therein at least partially vaporizing the liquid; passing resulting vaporization product upwardly through the tower packing and passing water or weak nitric acid into the tower and downwardly through the packing in countercurrent flow reaction contact with the vaporization product, and then into the zone of said vaporization and reaction contact with any unvaporized liquid, and vaporization product to convert substantially all of the initially added liquid dinitrogen tetroxide to nitric oxide gas product containing minor contaminant amounts of NO2, HNO3 and water, (5) water-scrubbing the NO2 and HNO3 contaminants from the NO gas product to form resulting water-wet NO gas product containing, on an anhydrous basis, at least 99 percent NO, and (6) dehydrating the water-wet NO gas product to form said NO of at least 99 weight percent purity. Strong nitric acid is formed in the converter tower as by-product.

    摘要翻译： 与氨空气氧化相结合的方法，用于制造纯度至少为99％的一氧化氮，包括以下步骤：（1）进行氨氧化，（2）保持氧化流出物中的最大NO含量，然后使流出物与 硝酸将NO转化为NO2，（3）冷却含NO 2气体产物以将NO 2作为液体N2O4冷凝，（4）将液体N2O4通入填料转炉塔并在其中至少部分蒸发液体; 使所产生的蒸发产物向上通过塔填料并将水或弱硝酸通入塔中，并向下通过填料与逆流反应接触蒸发产物，然后进入与任何未蒸发的液体的蒸发和反应接触的区域， 和蒸发产物 - 将基本上所有初始添加的液体四氧化二氮转化成含有少量NO 2，HNO 3和水的少量污染物的一氧化氮气体产物，（5）从NO气体产物中水洗涤NO 2和HNO 3污染物以形成 水无水气体产物，其以无水方式含有至少99％的NO，和（6）使水湿NO气体产物脱水以形成至少99重量％纯度的所述NO。 在转炉塔中形成强硝酸作为副产物。