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Title: Apparatus for the plasma destruction of hazardous gases

A plasma cell for destroying hazardous gases is described. An electric-discharge cell having an electrically conducting electrode onto which an alternating high-voltage waveform is impressed and a dielectric barrier adjacent thereto, together forming a high-voltage electrode, generates self-terminating discharges throughout a volume formed between this electrode and a grounded conducting liquid electrode. The gas to be transformed is passed through this volume. The liquid may be flowed, generating thereby a renewable surface. Moreover, since hydrochloric and hydrofluoric acids may be formed from destruction of various chlorofluorocarbons in the presence of water, a conducting liquid may be selected which will neutralize these corrosive compounds. The gases exiting the discharge region may be further scrubbed if additional purification is required. 4 figs.
Inventors:
Issue Date:
OSTI Identifier:
6863197
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-95-037887
Patent Number(s):
US 5387775; A
Application Number:
PPN: US 8-041019
Contract Number:
W-7405-ENG-36
Resource Relation:
Patent File Date: 31 Mar 1993
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; CHLOROFLUOROCARBONS; ELECTROLYSIS; HAZARDOUS MATERIALS; POLLUTION CONTROL EQUIPMENT; DESIGN; CORROSION PROTECTION; DECOMPOSITION; OPERATION; CHEMICAL REACTIONS; EQUIPMENT; LYSIS; MATERIALS; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC FLUORINE COMPOUNDS; ORGANIC HALOGEN COMPOUNDS 540120* -- Environment, Atmospheric-- Chemicals Monitoring & Transport-- (1990-)