U.S. patents available from 1976 to present.
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Treatment equipment of exhaust gas containing organic halogen compounds

Patent 5238656 Issued on August 24, 1993. Estimated Expiration Date: Icon_subject October 23, 2011. 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

Decomposition of halogenated organic compounds
Patent #: 4059683
Issued on: 11/22/1977
Inventor: Lindberg ,   et al.

Treatment of offgas from aluminum chloride production
Patent #: 4209496
Issued on: 06/24/1980
Inventor: Carpenter ,   et al.

Catalyst for minimizing the H2 S emissions from automotive exhaust and method of its manufacture
Patent #: 4760044
Issued on: 07/26/1988
Inventor: Joy, III ,   et al.

Method of decomposing organic halogen compounds in gaseous phase
Patent #: 4935212
Issued on: 06/19/1990
Inventor: Jacob

Catalytic process for minimizing the H2 S emissions from automotive exhaust
Patent #: 5008090
Issued on: 04/16/1991
Inventor: Joy, III, et al.

Carrier for catalyst and method for production thereof
Patent #: 5055442
Issued on: 10/08/1991
Inventor: Osaka, et al.

Carrier for gas-treating catalyst, method for production thereof and gas-treating catalyst incorporating said carrier therein Patent #: 5082820
Issued on: 01/21/1992
Inventor: Mitsui, et al.

Inventors

Application

No. 781741 filed on 10/23/1991

US Classes:

422/171, Solid, extended surface, fluid contact type422/172, And means downstream of a stage for injecting a reactant into waste gas for interreaction in subsequent stage422/177, Including solid, extended surface, fluid contact reaction means; e.g., inert Raschig rings, particulate absorbent, particulate or monolithic catalyst, etc.423/240R, Halogenous component423/240SSolid removal agent

Examiners

Primary: Warden, Robert J.
Assistant: Kim, Christopher

Attorney, Agent or Firm

Foreign Patent References

  • 0259105 EP. 03/13/1988
  • 0387417 EP. 09/13/1990
  • 3841847 DE. 12/13/1988
  • 4003668 DE. 08/13/1990
  • 54-22792 JP. 08/13/1979
  • 1141919 JP 06/13/1986
  • 3091128 JP 04/13/1988
  • 3091129 JP 04/13/1988
  • 2-83017 JP. 03/13/1990
  • 3-42015 JP. 02/13/1991
  • 3-106419 JP. 05/13/1991
  • 9013352 WO. 11/13/1990

International Classes

B01D 050/00
C01B 007/00

Foreign Application Priority Data

1990-10-26 JP

Abstract

A treatment equipment of exhaust gas containing organic halogen compounds using a catalytic decomposition unit packed with decomposition catalyst for organic halogen compounds having strong acidic sites and a wash tower for removing hydrogen halide gas generated by the decomposition of the organic halogen compounds.

Other References

  • Patent Abstracts of Japan, "Treatment of Pyrolysis Gas of Organic Waste Material," vol. 7, No. 7 (C-144) (1152), Jan. 12, 1983, & JP-A-57 165 021, Oct. 9, 1982, H. Hirokawa, et a
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