Catalytic method and device for controlling VOC. CO and halogenated organic emissions
Patent 5451388 Issued on September 19, 1995. Estimated Expiration Date: 
January 21, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 21, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3767453 3785998 3920583 Method of decomposing halohydrocarbons Method of decomposing chlorohydrocarbons Decomposition of halogenated organic compounds Decomposition of halogenated organic compounds Decomposition of halogenated organic compounds Catalytic process for reducing nitrogen oxides to nitrogen Metal oxide having uniform pore sizes, the process for producing said metal oxide, and catalyst carrier comprising the said metal oxide InventorsAssigneeApplicationNo. 184312 filed on 01/21/1994US Classes:423/240R, Halogenous component422/171, Solid, extended surface, fluid contact type422/177, Including solid, extended surface, fluid contact reaction means; e.g., inert Raschig rings, particulate absorbent, particulate or monolithic catalyst, etc.422/190, Plural solid, extended surface, fluid contact reaction stages each containing; e.g., inert Raschig rings, particulate sorbent, particulate or monolithic catalyst, etc.422/193, Reaction stages located within single reaction chamber422/211, Including solid, extended surface, fluid contact reaction means; e.g., inert Raschig rings, particulate absorbent, particulate or monolithic catalyst, etc.423/245.3, By burning or catalytically combusting component423/247Utilizing solid sorbent, catalyst, or reactantExaminersPrimary: Warden, Robert J.Assistant: Thornton, Krisanne Foreign Patent References
International ClassesB01D 050/00B01D 053/00 AbstractA method and device for treating a gas stream comprising at least one non-halogenated carbonaceous compound and optionally at least one halogenated organic compound. The gas stream, at 100° C. to 650° C. and in the presence of oxygen is contacted with a first catalyst in a first catalyst zone. The first catalyst comprises a first catalytic material deposited on a low acidity support material. In this zone, the non-halogenated compound is selectively reacted to form innocuous materials such as water and carbon monoxide. This can be followed by contacting the gas stream with a second catalyst in a second catalyst zone. The second catalyst comprises a second catalytic material deposited on a high acidity support material. In this zone, the halogenated organic compounds are reacted.Other References
Field of SearchSolid, extended surface, fluid contact typeUnitary (i.e., nonparticulate) contact bed (e.g., monolithic catalyst bed, etc.) Plural solid, extended surface, fluid contact reaction stages each containing; e.g., inert Raschig rings, particulate sorbent, particulate or monolithic catalyst, etc. Reaction stages located within single reaction chamber Unitary (i.e., nonparticulate) contact bed, (e.g., monolithic catalyst bed, etc.) Including solid, extended surface, fluid contact reaction means; e.g., inert Raschig rings, particulate absorbent, particulate or monolithic catalyst, etc. Including solid, extended surface, fluid contact reaction means; e.g., inert Raschig rings, particulate absorbent, particulate or monolithic catalyst, etc. Halogenous component Solid removal agent Organic component By burning or catalytically combusting component Carbon monoxide component Utilizing solid sorbent, catalyst, or reactant Silicon containing or process of making With metal, metal oxide, or metal hydroxide Of Group IV (i.e., Ti, Zr, Hf, Ge, Sn or Pb) Platinum group (i.e., Ru, Rh, Pd, Os, Ir or Pt) Platinum or palladium Of Group III or lanthanide group (i.e., Sc, Y, Al, Ga, In, Tl, or atomic number 57 to 71 inclusive) Metal, metal oxide or metal hydroxide Of Group VIII (i.e., iron or platinum group) And Group III metal containing (i.e., Sc, Y, Al, Ga, In or Tl) Of zinc Of Group III (i.e., Sc, Y, Al, Ga, In or Tl) Including pelletizing or briquetting and subsequently comminuting And Group VIII (Iron Group or Platinum Group) metal containing Zeolite And Group III metal containing (i.e., Sc, Y, Al, Ga, In or T1) One synthesis rehabilitates catalyst for other, e.g., by alkylation with ester, etc. Same catalyst, solvent, or component thereof used in both syntheses Entire catalyst composition Including an alkylation step |
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