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公开(公告)号：WO2009029876A2
公开(公告)日：2009-03-05
申请号：PCT/US2008/074900
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
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包括反应性气体 可能与纳米尺度一样小的颗粒，其可以任选地悬浮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。
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公开(公告)号：EP2203242B1
公开(公告)日：2013-01-09
申请号：EP08799027.1
申请日：2008-08-29
Applicant: SpectraSensors, Inc.
Inventor： BAUM, Marc, M. , MOSS, John , FEITISCH, Alfred , ZHOU, Xin , LIU, Xiang , KWAN, Alex
CPC classification number: B01D53/685 , B01D53/42 , B01D53/52 , B01D53/58 , B01D2251/512 , B01D2251/602 , B01D2251/606 , B01D2259/40
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 nanoparticles of a reactive metal oxide material 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 and that are inert relative to one or more background compounds, wherein a mass ratio of the reactive metal oxide to the carrier particles is in a range of 20% to 30%, and wherein the nanoparticles of the reactive metal oxide are 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 acid, the contacting causing the reactive compound to react with the reactive metal oxide material to convert the reactive compound and at least one metal oxide site on the nanoparticles to one or more metal-anion surface compounds. An apparatus, a composition and a refreshing method are also disclosed.
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公开(公告)号：EP2203242A2
公开(公告)日：2010-07-07
申请号：EP08799027.1
申请日：2008-08-29
Applicant: SpectraSensors, Inc.
Inventor： BAUM, Marc, M. , MOSS, John , FEITISCH, Alfred , ZHOU, Xin , LIU, Xiang , KWAN, Alex
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.
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