利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

9 条记录 (耗时 0.02 秒)

    Process for treating waste gas in reprocessing of used nuclear fuel
    2.
    发明授权
    Process for treating waste gas in reprocessing of used nuclear fuel 失效
    用于处理废气的废气的处理方法

    公开(公告)号：US4482479A

    公开(公告)日：1984-11-13

    申请号：US428386

    申请日：1973-12-26

    申请人： Kunio Kamiya ,  Hideo Yusa ,  Fumito Nakajima ,  Masato Takeuchi

    发明人： Kunio Kamiya ,  Hideo Yusa ,  Fumito Nakajima ,  Masato Takeuchi

    IPC分类号： B01D53/34 ,  G21F9/02

    CPC分类号： G21F9/02

    摘要： A waste gas generated in the reprocessing of used nuclear fuel is at first subjected to removal of explosive, gaseous substances such as hydrocarbons and nitrogen oxides, and materials capable of forming the explosive gaseous substances, such as oxygen, and condensible substances such as carbon dioxide, water and ammonia from the waste gas, and then to cryogenic distillation, thereby separating and recovering Kr-85 from the waste gas. As the separation and recovery of Kr-85 is carried out by cryogenic separation after the removal of the substances having a possibility to explode in a cryogenic distillation apparatus and also the removal of condensible substances having a possibility to clog a piping system of the apparatus, the operation of the apparatus is ensured. It is also disclosed that the oxygen and nitrogen oxides can be completely removed by catalytic hydrogen reduction.

    摘要翻译： 首先对废旧核燃料的后处理中产生的废气进行除去爆炸性气体物质如碳氢化合物和氮氧化物，以及能形成诸如氧气等爆炸性气体物质的物质，以及二氧化碳等可冷凝物质 ，来自废气的水和氨，然后进行低温蒸馏，从而从废气中分离并回收Kr-85。 由于在除去在低温蒸馏装置中可能爆炸的物质之后通过低温分离进行Kr-85的分离和回收以及除去可能堵塞设备的管道系统的可冷凝物质， 确保设备的操作。 还公开了氧和氮氧化物可以通过催化氢还原完全除去。

    Process and apparatus for treating a waste gas including combustible gases and radioactive Kr-85
    3.
    发明授权
    Process and apparatus for treating a waste gas including combustible gases and radioactive Kr-85 失效
    用于处理包括可燃气体和放射性Kr-85的废气的工艺和设备

    公开(公告)号：US4092133A

    公开(公告)日：1978-05-30

    申请号：US651534

    申请日：1976-01-22

    申请人： Kunio Kamiya ,  Hideo Yusa ,  Hiroyuki Tsuchiya

    发明人： Kunio Kamiya ,  Hideo Yusa ,  Hiroyuki Tsuchiya

    IPC分类号： B01D53/04 ,  C01B23/00 ,  G21F9/00 ,  G21F9/02 ,  B01D15/06

    CPC分类号： G21F9/02 ,  B01D53/04 ,  B01D2253/102 ,  B01D2256/12 ,  B01D2257/702 ,  B01D2259/402 ,  Y10S62/925

    摘要： Hydrocarbons are removed from a waste gas including oxygen, hydrocarbons and radioactive Krypton-85 (hereinafter referred to as "Kr-85"), which is generated in a nuclear reactor and a fuel recycling plant without adopting the reduction method of oxygen by adding hydrogen; the resultant gas is caused to pass through an activated charcoal layer and Kr-85 is adsorbed to the activated charcoal layer; the rest of gas is discharged to the atmosphere; further oxygen remaining in the activated charcoal layer is returned to a process of removing hydrocarbons; and thereafter Kr-85 adsorbed to the activated charcoal layer is desorbed, condensed and recovered.

    摘要翻译： 从包括氧气，碳氢化合物和在核反应堆和燃料再循环设备中产生的放射性氪-85（以下称为“Kr-85”）的废气中除去碳氢化合物，而不通过加入氢气来采用还原方法的氧气 ; 使所得气体通过活性炭层，并将Kr-85吸附到活性炭层上; 其余的气体排放到大气中; 残留在活性炭层中的另外的氧气返回到除去烃的过程中; 然后吸附到活性炭层上的Kr-85被解吸，浓缩并回收。

    Filter cleaning method and filter system
    4.
    发明授权
    Filter cleaning method and filter system 失效
    过滤器清洗方法和过滤系统

    公开(公告)号：US4123356A

    公开(公告)日：1978-10-31

    申请号：US752150

    申请日：1976-12-20

    申请人： Yoshikazu Sugimoto ,  Hideo Yusa ,  Yomei Kato ,  Kunio Kamiya ,  Makoto Kikuchi

    发明人： Yoshikazu Sugimoto ,  Hideo Yusa ,  Yomei Kato ,  Kunio Kamiya ,  Makoto Kikuchi

    IPC分类号： B01D29/46 ,  B01D29/15 ,  B01D41/04

    CPC分类号： B01D29/15

    摘要： A cleaning method of an etched disc filter and the system therefor, in which a plurality of discs having grooved surfaces are assembled or piled one on top of another. This filter is used for removing cruds and the like in a nuclear plant. For separating cruds and the like from small flow passages provided between each two of the discs thus assembled, reverse cleaning is applied, with the discs relieved from an assembled or piled condition for providing clearances among the discs.

    摘要翻译： 蚀刻盘式过滤器及其系统的清洁方法，其中具有开槽表面的多个盘组装或堆叠在另一个之上。 该过滤器用于去除核电厂中的粗屑等。 为了将这些组装的每个两个盘之间的小流动通道分离出来，可以进行反向清洗，从组装好的或堆积的状态上卸下，以便在盘之间提供间隙。

    Process for concentrating radioactive combustible waste
    5.
    发明授权
    Process for concentrating radioactive combustible waste 失效
    浓缩放射性可燃废物的方法

    公开(公告)号：US4383888A

    公开(公告)日：1983-05-17

    申请号：US141910

    申请日：1980-04-21

    申请人： Koichi Chino ,  Hideo Yusa ,  Kunio Kamiya

    发明人： Koichi Chino ,  Hideo Yusa ,  Kunio Kamiya

    IPC分类号： B01D1/22 ,  C02F11/12 ,  G21F9/00 ,  G21F9/08

    CPC分类号： B01D1/225 ,  G21F9/08 ,  Y10S159/12

    摘要： In the concentration of radioactive combustible waste comprising evaporating and drying a radioactive combustible waste slurry by a thin film drier, the radioactive combustible wastes and an incombustible material, such as sodium sulfate, etc. obtained from a nuclear reactor effluent are mixed together in an amount of not more than 70% by weight, preferably 43 to 70% by weight, of radioactive combustible waste on the basis of a mixture on dry basis, and the mixture is fed to the thin film drier and evaporated and dried therein. A risk of powder explosion and fire is prevented in the drying step thereby.

    摘要翻译： 在通过薄膜干燥器蒸发和干燥放射性可燃废料浆料的放射性可燃废物的浓缩中，从核反应器流出物获得的放射性可燃废物和不可燃材料如硫酸钠等以一定量混合在一起 不超过70重量％，优选43-70重量％的基于干基的混合物的放射性可燃废料，并将混合物进料到薄膜干燥器中并蒸发并干燥。 因此，在干燥步骤中防止了粉末爆炸和火灾的危险。

    Metallic catalyst and process for preparing the same
    6.
    发明授权
    Metallic catalyst and process for preparing the same 失效
    金属催化剂及其制备方法

    公开(公告)号：US4252690A

    公开(公告)日：1981-02-24

    申请号：US950460

    申请日：1978-10-11

    申请人： Kunio Kamiya ,  Hideo Yusa ,  Hiroyuki Tsuchiya

    发明人： Kunio Kamiya ,  Hideo Yusa ,  Hiroyuki Tsuchiya

    IPC分类号： B01J23/40 ,  B01D53/88 ,  B01D53/94 ,  B01J35/02 ,  B01J37/02 ,  B01J37/16 ,  B01J21/04 ,  B01J21/06 ,  B01J23/18 ,  B01J23/64

    CPC分类号： B01J35/02 ,  B01D53/885 ,  B01D53/944 ,  B01J37/024

    摘要： A metallic catalyst of three-layer structure of a carrier metal, an interlayer metal having a heat-insulating property by itself, or an interlayer metal capable of forming an oxide having a heat-insulating property or a catalyst surface area-increasing property, deposited on the entire surface of the carrier metal, and a catalyst metal deposited on the interlayer metal is prepared in a shorter production time at a lower cost through simplified process steps by depositing the interlayer metal and the catalyst metal by plating, if necessary, followed by oxidation, or both oxidation and reduction. The metallic catalyst has an improved catalytic activity, especially at a low temperature, in addition to the high mechanical strength.

    摘要翻译： 载体金属的三层结构的金属催化剂，其自身具有绝热性的夹层金属或能够形成具有隔热性或催化剂表面积增加性的氧化物的层间金属沉积 在载体金属的整个表面上，沉积在层间金属上的催化剂金属通过简化的工艺步骤以较低的成本在较短的生产时间内制备，如果需要，通过电镀沉积夹层金属和催化剂金属 氧化或氧化还原。 除了高机械强度之外，金属催化剂特别是在低温下具有改善的催化活性。

    Process for treatment of detergent-containing radioactive liquid wastes
    9.
    发明授权
    Process for treatment of detergent-containing radioactive liquid wastes 失效
    含有洗涤剂的放射性液体废物的处理方法

    公开(公告)号：US4432894A

    公开(公告)日：1984-02-21

    申请号：US249012

    申请日：1981-03-30

    申请人： Kunio Kamiya ,  Kenji Motojima ,  Kiyomi Funabashi ,  Koichi Chino ,  Susumu Horiuchi

    发明人： Kunio Kamiya ,  Kenji Motojima ,  Kiyomi Funabashi ,  Koichi Chino ,  Susumu Horiuchi

    IPC分类号： C02F1/02 ,  C02F1/28 ,  G21F9/00 ,  G21F9/08 ,  G21F9/12

    CPC分类号： G21F9/12 ,  G21F9/08

    摘要： A detergent-containing radioactive liquid waste originating from atomic power plants is concentrated to have about 10 wt. % detergent concentration, then dried in a thin film evaporator, and converted into powder. Powdered activated carbon is added to the radioactive waste in advance to prevent the liquid waste from foaming in the evaporator by the action of surface active agents contained in the detergent. The activated carbon is added in accordance with the COD concentration of the radioactive liquid waste to be treated, and usually at a concentration 2-4 times as large as the COD concentration of the liquid waste to be treated. A powdery product having a moisture content of not more than 15 wt. % is obtained from the evaporator, and pelletized and then packed into drums to be stored for a predetermined period.

    摘要翻译： 来自原子能发电厂的含有洗涤剂的放射性废液被浓缩至约10wt。 ％洗涤剂浓度，然后在薄膜蒸发器中干燥，并转化成粉末。 预先将粉状活性炭加入到放射性废物中，以通过洗涤剂中所含的表面活性剂的作用来防止液体废料在蒸发器中发泡。 活性炭根据待处理的放射性废液的COD浓度加入，通常浓度为待处理废液的COD浓度的2-4倍。 水分含量不超过15重量％的粉状产品 从蒸发器获得％，并造粒，然后装入桶中以保存预定时间。