Methods and apparatus for controlling toxic compounds using cata

Details Methods and apparatus for controlling toxic compounds using cata Methods and apparatus for controlling toxic compounds using cata

1995-09-26

1997-03-11

Gorgos, Kathryn L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

588210, 588212, 588227, H05F 300

Patent

active

056097360

ABSTRACT:
The present invention provides methods and apparatus for decomposing toxic compounds so that reaction by-products produced thereby are selectively reduced. A method generally comprises: introducing a carrier gas, having a toxic compound entrained therein, into a packed-bed of ferroelectric pellets; and polarizing the pellets to produce a plasma which decomposes the toxic compound. The pellets are coated with a catalyst selected to react with by-products of the decomposition of the toxic compound and thereby produce non-toxic compounds. An apparatus for decomposing toxic compounds and selectively reducing by-products, according to the present invention, comprises: a vessel having an internal passageway therethrough; a packed-bed of pellets coated with at least one catalyst; means for producing a plasma within the packed-bed of pellets; and carrier gas flow means in fluid communication with the internal passageway for causing a carrier gas entrained with toxic compounds to flow through the packed-bed of pellets. The present invention also discloses methods and apparatus wherein a pulsed corona reactor having a catalyst coating on a portion thereof is utilized to decompose toxic compounds.

REFERENCES:
patent: 5439568 (1995-08-01), Uchiyama
patent: 5474747 (1995-12-01), Hayashi et al.
patent: 5492678 (1996-02-01), Ota et al.

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