AMMONIA GAS GENERATION FROM UREA FOR LOW TEMPERATURE PROCESS REQUIREMENTS
    1.
    发明申请
    AMMONIA GAS GENERATION FROM UREA FOR LOW TEMPERATURE PROCESS REQUIREMENTS 有权
    AMMONIA气体从UREA生成低温过程要求

    公开(公告)号:US20130287669A1

    公开(公告)日:2013-10-31

    申请号:US13455459

    申请日:2012-04-25

    IPC分类号: C01C1/08 B01J7/02

    摘要: Disclosed are methods and apparatus for providing an ammonia feed for a low-temperature process. The process includes two defined stages, gasification and hydrolysis. In a first stage thermal reactor, an aqueous urea solution is fed to a gasification chamber and heated gases are controlled in response to demand from a low temperature process requiring ammonia. The heated gases and aqueous urea are introduced into the gasification chamber upstream to fully gasify the solution of aqueous urea to a first stage gas stream comprising ammonia and isocyanic acid. The first stage gas stream is withdrawn and maintained hot enough to prevent solids formation. All amounts of urea feed, water and heated gases fed into the first stage thermal reactor are monitored and adjusted as necessary to achieve efficient hydrolysis in the second stage hydrolysis reactor. The second stage gas stream is withdrawn from the second stage reactor responsive to demand from a low temperature process requiring ammonia.

    摘要翻译: 公开了用于提供用于低温过程的氨进料的方法和装置。 该方法包括两个定义的阶段,气化和水解。 在第一级热反应器中,将尿素水溶液供给到气化室,并且响应于需要氨的低温过程的需求来控制加热的气体。 将加热的气体和尿素水引入气化室的上游,以将尿素水溶液完全气化成包含氨和异氰酸的第一级气流。 第一级气流被取出并保持足够热,以防止固体形成。 根据需要监测和调整进料到第一级热反应器中的所有量的尿素进料,水和加热气体,以在第二级水解反应器中实现有效的水解。 响应于需要氨的低温过程的需求,第二级气流从第二级反应器中排出。

    ADSORBENT MATERIAL AND XENON ADSORPTION DEVICE USING SAME
    2.
    发明申请
    ADSORBENT MATERIAL AND XENON ADSORPTION DEVICE USING SAME 有权
    吸附材料和XENON吸附装置使用相同

    公开(公告)号:US20120167770A1

    公开(公告)日:2012-07-05

    申请号:US13394742

    申请日:2010-08-26

    申请人: Akiko Yuasa

    发明人: Akiko Yuasa

    IPC分类号: C01B39/26 B01D53/02 C01B39/00

    摘要: An adsorbent comprising a zeolite having a pore diameter of not less than 4.5 angstroms and not more than 7.3 angstroms as a principal component, which can adsorb xenon under ordinary temperatures and pressures or under ordinary temperatures and low xenon partial pressures. In addition, a xenon adsorbing device comprising an adsorbent, a container of a vapor poorly-permeating material, which houses the adsorbent, and a joint part which joins the container to a xenon enclosure space, in which the adsorbent is communicated with the xenon enclosure space. Thereby, the present invention provides an adsorbent which recovers xenon directly from the used equipment in which xenon is enclosed with efficiency under ordinary temperatures and pressures or under ordinary temperatures and low xenon partial pressures, and a xenon adsorbing device using the adsorbent.

    摘要翻译: 一种吸附剂,其包含孔径不小于4.5埃且不超过7.3埃的沸石作为主要组分,其可以在常温和常压或常温下低氙分压下吸附氙。 另外,氙吸附装置包括吸附剂,容纳吸附剂的蒸气不透水材料的容器,以及将容器连接到氙气封闭空间的接合部分,其中吸附剂与氙气外壳连通 空间。 因此,本发明提供了一种吸附剂,其在常温,常压,低氙分压下,从氙气被密闭的使用过的设备中直接回收氙气,以及使用该吸附剂的氙吸附装置。

    Gas Purifying Process and Device
    3.
    发明申请
    Gas Purifying Process and Device 有权
    气体净化工艺及装置

    公开(公告)号:US20060165573A1

    公开(公告)日:2006-07-27

    申请号:US10515320

    申请日:2003-05-26

    IPC分类号: B01D53/46 B01D47/00 B01D50/00

    摘要: This gas purifying process removes trace constituents from a mixed gas that includes a rare gas and nitrogen as main components, and at least one from among hydrogen, nitrogen and hydrogen reaction products, and water vapor as the trace constituent. This process sequentially carries out an adsorbing step for removing water vapor and nitrogen and hydrogen reaction products; a hydrogen oxidation step for converting the hydrogen into water vapor by means of a hydrogen oxidation catalytic reaction in the presence of oxygen; and a drying step for removing water vapor generated in the hydrogen oxidation step. When nitrogen oxides are included as a trace constituent, then a denitration step is carried out prior to the adsorbing step, to convert nitrogen oxides into nitrogen and water vapor by means of a catalytic denitration reaction in the presence of a reducing substance.

    摘要翻译: 该气体净化处理从作为主要成分的稀有气体和氮气以及氢,氮和氢反应产物中的至少一种以及作为微量成分的水蒸汽的混合气体中除去微量成分。 该方法依次进行用于除去水蒸汽和氮气和氢气反应产物的吸附步骤; 通过在氧的存在下通过氢氧化催化反应将氢转化为水蒸汽的氢氧化步骤; 以及用于除去在氢氧化步骤中产生的水蒸汽的干燥步骤。 当包含氮氧化物作为微量成分时,在吸附步骤之前进行脱硝步骤,通过在还原物质存在下通过催化脱硝反应将氮氧化物转化为氮和水蒸气。

    Electrochemical cell and its use for the separation and the
electrochemical extraction of oxygen
    7.
    发明授权
    Electrochemical cell and its use for the separation and the electrochemical extraction of oxygen 失效
    电化学电池及其用于分离和电化学提取的氧气

    公开(公告)号:US5582710A

    公开(公告)日:1996-12-10

    申请号:US244034

    申请日:1994-05-16

    摘要: The present invention relates to an electrochemical cell comprising a solid electrolyte conductive for O.sup.2- anions in contact with an anode and a cathode of identical or different composition, the electrolyte solid being comprised of a composition derived from Bi.sub.4 V.sub.2 O.sub.11 of which at least one of the cationic constituent elements is substituted by at least one substituting element chosen such that the gamma phase structural type of Bi.sub.4 V.sub.2 O.sub.11 is maintained, as well as the equilibrium of charges, at least one of the anode or the cathode including two parts, a first part being of a mixed electronic and ionic conductive material in contact with the solid electrolyte, the second part being an electronic conductive material superposed on the first part. The invention equally relates to the use of the electrochemical cell with a view towards the separation or the extraction of oxygen.

    摘要翻译: PCT No.PCT / FR93 / 00872 Sec。 371日期1994年5月16日 102(e)日期1994年5月16日PCT提交1992年9月13日PCT公布。 出版物WO94 / 06545 日期:1994年3月31日本发明涉及一种电化学电池,其包含用于与阳极和阴极相接触或相同或不同组成的阴离子导电的固体电解质,电解质固体由衍生自Bi4V2O11的组合物组成, 阳离子组成元素中的至少一个被至少一个选择为使得维持Bi4V2O11的γ相结构类型以及电荷的平衡的取代元素所取代,阳极或阴极中的至少一个包括两个部分,一个 第一部分是与固体电解质接触的混合电子和离子导电材料,第二部分是重叠在第一部分上的电子导电材料。 本发明同样涉及电化学电池用于分离或提取氧气的用途。