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    Controlling the synthesis gas composition of a steam methane reformer
    5.
    发明申请
    Controlling the synthesis gas composition of a steam methane reformer 有权
    控制蒸汽甲烷重整器的合成气组成

    公开(公告)号：US20080021121A1

    公开(公告)日：2008-01-24

    申请号：US11879241

    申请日：2007-07-16

    Applicant: Joseph Norbeck ,  Chan Park ,  Arun Raju

    Inventor： Joseph Norbeck ,  Chan Park ,  Arun Raju

    IPC: C07C27/00

    CPC classification number: C01B3/38 ,  C01B2203/0233 ,  C01B2203/04 ,  C01B2203/062 ,  C01B2203/0805 ,  C01B2203/1241 ,  C01B2203/1258 ,  C01B2203/127 ,  C01B2203/148 ,  C01B2203/84 ,  C10G2/30 ,  C10G2300/1003 ,  C10G2300/1011 ,  C10G2300/42 ,  C10G2300/807 ,  C10J3/00 ,  C10J2300/0916 ,  C10J2300/0946 ,  C10J2300/0966 ,  C10J2300/0973 ,  C10J2300/1659 ,  C10J2300/1807 ,  C10K1/024 ,  C10K1/143 ,  C10K1/16 ,  C10K1/165 ,  Y02E20/18 ,  Y02E50/32 ,  Y02P20/145 ,  Y02P30/20

    Abstract: A method for controlling the synthesis gas composition obtained from a steam methane reformer (SMR) that obtains its feedstock as product gas directly from a steam hydro-gasification reactor SHR). The method allows control of the H2/CO syngas ratio by adjusting the hydrogen feed and the water content of feedstock into a steam hydro-gasification reactor that supplies the SMR. The steam and methane rich product gas of the SHR is generated by means of hydro-gasification of a slurry of carbonaceous material and water. The mass percentages of the product stream at each stage of the process are calculated using a modeling program, such as the ASPEN PLUS™ equilibrium process. By varying the parameters of solid to water ratio and hydrogen to carbon ratio, a sensitivity analysis can be performed that enables one determine the optimum composition of the slurry feedstock to the SHR to obtain a desired syngas ratio output of the SMR. Thus one can adjust the hydrogen feed and the water content of feedstock into the SHR that supplies the SMR to determine the syngas ratio output of the SMR.

    Abstract translation: 用于控制从蒸汽甲烷重整器（SMR）获得的合成气组合物的方法，其从蒸汽加氢气化反应器SHR直接获得其原料作为产物气体）。 该方法允许通过将原料的氢气进料和水含量调节到供应SMR的蒸汽加氢 - 气化反应器中来控制H 2 CO 2 / CO合成气比。 SHR的蒸汽和富甲烷产物气体通过碳质材料和水的浆料的加氢气化产生。 使用建模程序（如ASPEN PLUS TM平衡过程）计算过程每个阶段的产物流的质量百分比。 通过改变固 - 水比和氢碳比的参数，可以进行灵敏度分析，使得能够确定SHR的浆料原料的最佳组成以获得SMR的所需合成气比输出。 因此，可以将氢气进料和原料的水含量调节到提供SMR的SHR中，以确定SMR的合成气比输出。

    Gas sensor based on dynamic thermal conductivity and molecular velocity
    8.
    发明申请
    Gas sensor based on dynamic thermal conductivity and molecular velocity 失效
    基于动态热导率和分子速度的气体传感器

    公开(公告)号：US20070169541A1

    公开(公告)日：2007-07-26

    申请号：US11234511

    申请日：2005-09-22

    Applicant: Joseph Norbeck ,  Chan Park ,  Michael Mc Clanahan ,  Colin Hackett ,  Nora Hackett

    Inventor： Joseph Norbeck ,  Chan Park ,  Michael Mc Clanahan ,  Colin Hackett ,  Nora Hackett

    IPC: G01N25/18 ,  G01F1/688 ,  G01K13/12

    CPC classification number: G01P5/12 ,  G01N1/24 ,  G01N25/18 ,  G01N33/005

    Abstract: An apparatus and method for gas detection. The apparatus comprises a) a sample chamber for holding a gas sample, b) a sealable vacuum port in fluid communication with the sample chamber, for evacuating the sample chamber, c) a sealable inlet port in fluid communication with the sample chamber, for introducing the gas sample into the evacuated sample chamber, and d) a thermal conductivity sensing element at least partly disposed within the sample chamber, for measuring the thermal conductivity of the gas sample. A gas sample released into the evacuated sample chamber requires a time interval to contact the thermal conductivity sensing element. The time interval is a measure of gas speed. Thermal conductivity and temperature of the gas sample are measured following determination of gas speed. By determining three parameters in a single sample of gas, different gas mixtures having similar thermal conductivities can be distinguished.

    Abstract translation: 一种用于气体检测的装置和方法。 该设备包括：a）用于保持气体样品的样品室，b）与样品室流体连通的可密封真空端口，用于抽空样品室; c）与样品室流体连通的可密封入口，用于引入 气体样品进入抽真空的样品室，以及d）至少部分地设置在样品室内的热传感元件，用于测量气体样品的热导率。 释放到抽空样品室中的气体样品需要与热敏感测元件接触的时间间隔。 时间间隔是气体速度的量度。 在确定气体速度后测量气体样品的导热系数和温度。 通过确定单个气体样品中的三个参数，可以区分具有相似热导率的不同气体混合物。

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