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.
- 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-)