中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

80 records (took 0.025 seconds)

    Scrubber for reactive gasses
    51.
    发明专利
    Scrubber for reactive gasses 未知

    公开(公告)号：AU2008292847C1

    公开(公告)日：2012-09-20

    申请号：AU2008292847

    申请日：2008-08-29

    Applicant: SPECTRASENSORS INC

    Inventor： FEITISCH ALFRED ,  LIU XIANG ,  MOSS JOHN ,  KWAN ALEX ,  ZHOU XIN ,  BAUM MARC M

    IPC: B01D53/52 ,  B01D53/58 ,  B01D53/68 ,  G01N30/02

    Abstract: Scrubber media for reactive gases, that can include but are not necessarily limited to hydrogen chloride (HCl), hydrogen sulfide (H2S), hydrogen fluoride (HF), and ammonia (NH3), can include reactive particles, potentially as small as nano-scale, that can optionally be suspended on macro-scale carrier particles. Reactive gases can be converted to non-volatile compounds by being passed through a bed of such scrubber media. Such scrubber media can be used to remove reactive gases from gas mixtures. Potential applications include differential absorption spectroscopy, air pollutant emission controls, and the like. Methods of preparing scrubber media are also described.

    Optical absorbance measurements with self-calibration and extended dynamic range
    53.
    发明专利
    Optical absorbance measurements with self-calibration and extended dynamic range 未知

    公开(公告)号：AU2010259934A1

    公开(公告)日：2012-01-19

    申请号：AU2010259934

    申请日：2010-06-11

    Applicant: SPECTRASENSORS INC

    Inventor： LIU XIANG ,  FEITISCH ALFRED ,  ZHOU XIN

    IPC: G01J3/42 ,  G01N21/25

    Abstract: Detector data representative of an intensity of light that impinges on a detector after being emitted from a light source and passing through a gas over a path length can be analyzed using a first analysis method to obtain a first calculation of an analyte concentration in the volume of gas and a second analysis method to obtain a second calculation of the analyte concentration. The second calculation can be promoted as the analyte concentration upon determining that the analyte concentration is out of a first target range for the first analysis method.

    Scrubber for reactive gasses
    54.
    发明专利
    Scrubber for reactive gasses 未知

    公开(公告)号：AU2008292847A1

    公开(公告)日：2009-03-05

    申请号：AU2008292847

    申请日：2008-08-29

    Applicant: SPECTRASENSORS INC

    Inventor： BAUM MARC M ,  ZHOU XIN ,  KWAN ALEX ,  LIU XIANG ,  MOSS JOHN ,  FEITISCH ALFRED

    IPC: B01D53/52 ,  B01D53/58 ,  B01D53/68 ,  G01N30/02

    Abstract: A method is disclosed which comprises maintaining a scrubber medium at a temperature in a range of -20°C to 85°C, the scrubber medium comprising reactive nanoparticles having first aerodynamic diameters of less than 250 nm that are adhered to carrier particles having second aerodynamic diameters in a range of 10 to 250 microns, the carrier particles being inert relative to one or more background compounds, the reactive nanoparticles comprising a solid-phase acid, the reactive nanoparticles being adhered to the carrier particles by one or more of van der Waals and electrostatic forces. In a further step, a gas mixture is contacted with the scrubber medium while the scrubber medium is maintained at the temperature, the gas mixture comprising a reactive compound and the one or more background compounds, the reactive compound comprising a gas-phase Lewis base, the contacting causing the reactive compound to react with the reactive nanoparticles to convert the reactive compound to one or more non-volatile salts or other non-volatile chemical compounds. An apparatus, a composition and a refreshing method are also disclosed.

    Background compensation by multiple-peak measurements for absorption spectroscopy-based gas sensing
    56.
    发明专利
    Background compensation by multiple-peak measurements for absorption spectroscopy-based gas sensing 未知

    公开(公告)号：AU2008242467A1

    公开(公告)日：2008-10-30

    申请号：AU2008242467

    申请日：2008-01-24

    Applicant: SPECTRASENSORS INC

    Inventor： FEITISCH ALFRED ,  SANGER GREGORY M ,  LIU XIANG ,  ZHOU XIN

    IPC: G01N21/31 ,  G01N21/35 ,  G01N21/39

    Abstract: Concentrations of a target analyte in a gas mixture containing one or more background analytes having potentially interfering spectral absorption features can be calculated by compensating for background analyte absorption at a target wavelength used to quantify the target analyte. Absorption can be measured at a reference wavelength chosen to quantify the concentration of the background analyte. Using a background gas adjustment factor or function, the absorption measured at the reference wavelength can be used to calculate absorption due to the background analyte at the target wavelength and thereby compensate for this background absorption to more accurately calculate the target analyte concentration in real or near real time. Additional background analytes can optionally be compensated for by using one or more additional reference wavelengths.

    SCRUBBER FOR REACTIVE GASSES
    59.
    发明申请
    SCRUBBER FOR REACTIVE GASSES 审中-公开
    活性气体洗涤器

    公开(公告)号：WO2009029876A3

    公开(公告)日：2009-04-23

    申请号：PCT/US2008074900

    申请日：2008-08-29

    Applicant: SPECTRASENSORS INC ,  BAUM MARC M ,  MOSS JOHN ,  FEITISCH ALFRED ,  ZHOU XIN ,  LIU XIANG ,  KWAN ALEX

    Inventor： BAUM MARC M ,  MOSS JOHN ,  FEITISCH ALFRED ,  ZHOU XIN ,  LIU XIANG ,  KWAN ALEX

    IPC: B01D53/52 ,  B01D53/58 ,  B01D53/68 ,  G01N30/02

    CPC classification number: B01D53/685 ,  B01D53/42 ,  B01D53/52 ,  B01D53/58 ,  B01D2251/512 ,  B01D2251/602 ,  B01D2251/606 ,  B01D2259/40

    Abstract: Scrubber media for reactive gases, that can include but are not necessarily limited to hydrogen chloride (HCl), hydrogen sulfide (H2S), hydrogen fluoride (HF), and ammonia (NH3), can include reactive particles, potentially as small as nano-scale, that can optionally be suspended on macro-scale carrier particles. Reactive gases can be converted to non-volatile compounds by being passed through a bed of such scrubber media. Such scrubber media can be used to remove reactive gases from gas mixtures. Potential applications include differential absorption spectroscopy, air pollutant emission controls, and the like. Methods of preparing scrubber media are also described.

    Abstract translation: 可以包括但不一定限于氯化氢（HCl），硫化氢（H 2 S），氟化氢（HF）和氨（NH 3）的反应气体的洗涤器介质可以包括反应性颗粒， 可以选择性地悬挂在宏观尺度的载体颗粒上。 反应性气体可以通过穿过这种洗涤器介质床而转化为非挥发性化合物。 这种洗涤器介质可以用来从气体混合物中除去反应气体。 潜在的应用包括差示吸收光谱，空气污染物排放控制等。 还描述了制备洗涤器介质的方法。

    BACKGROUND COMPENSATION BY MULTIPLE-PEAK MEASUREMENTS FOR ABSORPTION SPECTROSCOPY-BASED GAS SENSING
    60.
    发明申请
    BACKGROUND COMPENSATION BY MULTIPLE-PEAK MEASUREMENTS FOR ABSORPTION SPECTROSCOPY-BASED GAS SENSING 审中-公开
    用于吸收基于光谱的气体感测的多峰度测量的背景补偿

    公开(公告)号：WO2008130727A2

    公开(公告)日：2008-10-30

    申请号：PCT/US2008051931

    申请日：2008-01-24

    Applicant: SPECTRASENSORS INC ,  LIU XIANG ,  ZHOU XIN ,  FEITISCH ALFRED ,  SANGER GREGORY M

    Inventor： LIU XIANG ,  ZHOU XIN ,  FEITISCH ALFRED ,  SANGER GREGORY M

    IPC: G01N21/35

    CPC classification number: G01N21/3504 ,  G01N21/274 ,  G01N21/314 ,  G01N21/39 ,  G01N2201/1215

    Abstract: Concentrations of a target analyte in a gas mixture containing one or more background analytes having potentially interfering spectral absorption features can be calculated by compensating for background analyte absorption at a target wavelength used to quantify the target analyte. Absorption can be measured at a reference wavelength chosen to quantify the concentration of the background analyte. Using a background gas adjustment factor or function, the absorption measured at the reference wavelength can be used to calculate absorption due to the background analyte at the target wavelength and thereby compensate for this background absorption to more accurately calculate the target analyte concentration in real or near real time. Additional background analytes can optionally be compensated for by using one or more additional reference wavelengths.

    Abstract translation: 含有具有潜在干扰光谱吸收特征的一种或多种背景分析物的气体混合物中的目标分析物的浓度可以通过补偿用于量化目标分析物的目标波长的背景分析物吸收来计算。 可以在选择的参考波长处测量吸光度，以量化背景分析物的浓度。 使用背景气体调节因子或功能，可以使用在参考波长处测量的吸收来计算由于目标波长的背景分析物引起的吸收，从而补偿该背景吸收，以更精确地计算实际或近似的目标分析物浓度 即时的。 可以通过使用一个或多个另外的参考波长来可选地补偿附加的背景分析物。

Patent Agency Ranking