Multi-channel pellistor type emission sensor
    21.
    发明授权
    Multi-channel pellistor type emission sensor 失效
    多通道阻流型发射传感器

    公开(公告)号:US6009742A

    公开(公告)日:2000-01-04

    申请号:US970940

    申请日:1997-11-14

    申请人: Edward N. Balko

    发明人: Edward N. Balko

    IPC分类号: B01D53/94 F01N11/00 G01M15/00

    摘要: A calorimetric sensor for sensing hydrocarbon emissions in an exhaust gas emission monitoring system is provided with at least first and second areas coated with different first and second catalysts so that one catalyst coated area produces oxidation with HC, CO and H.sub.2 and the other catalyst produces oxidation with CO and H.sub.2 but not with HC. Temperature increases attributed to the oxidation reactions are sensed by first and second RTDs while the temperature of an uncatalyzed sensor area is sensed by a reference RTD. Thermal temperature signals for each first and second RTD is balanced against the reference RTD signal to produce accurate first and second temperature signals which are then subtracted to produce a true signal of the HC concentration in the exhaust gas.

    摘要翻译: 用于感测废气排放监测系统中碳氢化合物排放物的量热传感器具有涂覆有不同第一和第二催化剂的至少第一和第二区域,使得一个催化剂涂覆区域产生用HC,CO和H 2氧化并且另一种催化剂产生氧化 与CO和H2,但不与HC。 通过第一和第二RTD检测归因于氧化反应的温度升高,而未催化的传感器区域的温度由参考RTD感测。 每个第一和第二RTD的热温度信号与参考RTD信号平衡以产生精确的第一和第二温度信号,然后将其减去以产生排气中HC浓度的真实信号。

    Hydrodehalogenation of aromatic compounds
    22.
    发明授权
    Hydrodehalogenation of aromatic compounds 失效
    芳香族化合物的加氢脱卤

    公开(公告)号:US5177268A

    公开(公告)日:1993-01-05

    申请号:US863896

    申请日:1992-04-06

    IPC分类号: C07C37/00

    CPC分类号: C07C37/00

    摘要: A process for hydrodehalogenating halogenated aromatics present in a contaminated aqueous environmental source in which the halogenated aromatics are reacted with hydrogen gas or a source of hydrogen gas in the presence of a basic proton acceptor and a catalyst of palladium on carbon.

    摘要翻译: 存在于污染的水性环境源中的卤代芳族化合物的加氢脱卤的方法,其中卤化芳族化合物在碱性质子受体和钯碳催化剂存在下与氢气或氢气源反应。