Method for treating toxic compounds-containing gas by non-thermal plasma
US6395144B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2000 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Jul 12, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/708
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a non-thermal plasma method for treating a toxic compounds-containing gas; the method comprising the steps of: filling alkali earth metal catalysts and dielectrics within a plasma reactor; the alkali earth metal catalysts being made by substituting alkali earth metal cations for cations of aluminum/silicon molecular sieves used as carriers; introducing a toxic compounds-containing gas into the plasma reactor; and supplying AC power or pulse power to the plasma reactor generating a non-thermal plasma and thus decomposing or oxidizing the toxic compounds. Also to stabilize the plasma more during the non-thermal plasma process and to enhance treatment efficiency of the toxic compounds, the catalysts substituted by the alkali earth metal are filled together with the well-known dielectrics within the plasma reactor; the alkali earth metal catalysts being electrically less conductive and inexpensive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.