Method and apparatus for removing undesirable chemical substance

Details Method and apparatus for removing undesirable chemical substance Method and apparatus for removing undesirable chemical substance

1995-09-27

1997-11-18

Jordan, Charles T.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

With means applying electromagnetic wave energy or...

422186, 422168, 588900, B01J 1912

Patent

active

056897987

ABSTRACT:
The present invention relates to a method and pertinent apparatus for purifying gases, exhaust gases, vapors, and brines, which are contaminated with undesirable chemical substances or contain high concentrations of these substances, by means of photocatalytic reactions occurring on the surface of catalysts.
The catalysts are situated in a fixed or fluidized bed on catalyst carriers. In fluidized beds, the catalysts themselves can serve as catalyst carriers. The substrates to be purified are fed through a closed system which contains the catalyst carriers and catalysts.
In the fixed-bed catalytic method, the catalyst carrier/catalyst system continuously or discontinuously passes through a washing zone to remove the generated mineralization products. The reaction is induced by shortwave photons of wavelengths between 250 and 400 nm.

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patent: 5137607 (1992-08-01), Anderson et al.
patent: 5449443 (1995-09-01), Jacoby et al.
patent: 5480524 (1996-01-01), Oeste

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