Batch methods for enriching trace impurities in hydrogen gas for their further analysis
    1.
    发明授权
    Batch methods for enriching trace impurities in hydrogen gas for their further analysis 有权
    用于浓缩氢气中微量杂质的分批方法进行进一步分析

    公开(公告)号:US08778694B2

    公开(公告)日:2014-07-15

    申请号:US12835614

    申请日:2010-07-13

    IPC分类号: G01N33/00

    摘要: Provided herein are batch methods and devices for enriching trace quantities of impurities in gaseous mixtures, such as hydrogen fuel. The methods and devices rely on concentrating impurities using hydrogen transport membranes wherein the time period for concentrating the sample is calculated on the basis of optimized membrane characteristics, comprising its thickness and permeance, with optimization of temperature, and wherein the enrichment of trace impurities is proportional to the pressure ratio Phi/Plo and the volume ratio V1/V2, with following detection of the impurities using commonly-available detection methods.

    摘要翻译: 本文提供了用于富集气体混合物(例如氢燃料)中痕量杂质的批次方法和装置。 所述方法和装置依赖于使用氢传输膜浓缩杂质,其中基于优化的膜特性计算浓缩样品的时间段,其包括其厚度和渗透性,并优化温度,并且其中痕量杂质的富集成比例 压力比Phi / Plo和体积比V1 / V2,使用常用的检测方法检测杂质。

    Fuel cell system for transportation applications
    3.
    发明授权
    Fuel cell system for transportation applications 失效
    用于运输应用的燃料电池系统

    公开(公告)号:US5248566A

    公开(公告)日:1993-09-28

    申请号:US796973

    申请日:1991-11-25

    IPC分类号: H01M8/06

    CPC分类号: H01M8/0612

    摘要: A propulsion system for a vehicle having pairs of front and rear wheels and a fuel tank. An electrically driven motor having an output shaft operatively connected to at least one of said pair of wheels is connected to a fuel cell having a positive electrode and a negative electrode separated by an electrolyte for producing dc power to operate the motor. A partial oxidation reformer is connected both to the fuel tank and to the fuel cell receives hydrogen-containing fuel from the fuel tank and water and air and for partially oxidizing and reforming the fuel with water and air in the presence of an oxidizing catalyst and a reforming catalyst to produce a hydrogen-containing gas. The hydrogen-containing gas is sent from the partial oxidation reformer to the fuel cell negative electrode while air is transported to the fuel cell positive electrode to produce dc power for operating the electric motor.

    摘要翻译: 一种用于具有一对前后轮和一个燃料箱的车辆的推进系统。 具有可操作地连接到所述一对车轮中的至少一个的输出轴的电动马达连接到具有由用于产生直流电力以产生电动机的电解质分离的正极和负极的燃料电池。 部分氧化重整器连接到燃料箱,燃料电池从燃料箱和水和空气接收含氢燃料,并在氧化催化剂存在下用水和空气部分氧化和重整燃料, 重整催化剂以产生含氢气体。 将含氢气体从部分氧化重整器输送到燃料电池负极,同时将空气输送到燃料电池正极,以产生用于操作电动机的直流电力。

    Real time infrared aerosol analyzer
    10.
    发明授权
    Real time infrared aerosol analyzer 失效
    实时红外气溶胶分析仪

    公开(公告)号:US4942297A

    公开(公告)日:1990-07-17

    申请号:US273395

    申请日:1988-11-18

    摘要: Apparatus for analyzing aerosols in essentially real time includes a virtual impactor which separates coarse particles from fine and ultrafine particles in an aerosol sample. The coarse and ultrafine particles are captured in PTFE filters, and the fine particles impact onto an internal light reflection element. The composition and quantity of the particles on the PTFE filter and on the internal reflection element are measured by alternately passing infrared light through the filter and the internal light reflection element, and analyzing the light through infrared spectrophotometry to identify the particles in the sample.

    摘要翻译: 用于基本上实时分析气溶胶的装置包括将粗颗粒与气溶胶样品中的细微粒子和超细颗粒分离的虚拟冲击器。 粗粉和超细颗粒被捕获在PTFE过滤器中,细颗粒撞击内部光反射元件。 通过将红外光交替地通过过滤器和内部光反射元件来测量PTFE过滤器和内部反射元件上的颗粒的组成和数量,并通过红外分光光度法分析光以鉴定样品中的颗粒。