Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Organic component
Patent
1997-12-02
1999-04-20
Straub, Gary P.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Organic component
4232451, 4232135, 423240R, 423240S, 423247, 502302, 502304, 502328, 588206, 588207, 422190, 422193, 2082621, 2082625, B01J 800, B01J 2300, B01J 804, A62D 300
Patent
active
058956360
ABSTRACT:
Methods and chemical compositions for treating a gas stream comprising non-halogenated and halogenated organic compounds while suppressing halogenation of the non-halogenated organic compounds with the oxidation products of the halogenated organic compounds in the gas stream are disclosed. The gas stream in the presence of oxygen is contacted with the catalyst compositions of the invention to oxidize the non-halogenated and the halogenated compounds to form water, carbon dioxide, and halogen molecules (Cl.sub.2, Br.sub.2, etc.) and/or halogen acids such as HCl, HBr, etc. An advantage of the present compositions and methods is that halogenation or of the treated emissions is suppressed over a process operating temperature range 400 to 550.degree. C.
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Chen James M.
Chen Shau-Lin Frank
Hu Zhicheng
Nguyen Pascaline H.
Wan Chung-Zong
Engelhard Corporation
Shatynski T. J.
Straub Gary P.
Wong Melanie
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