Pollution control system and method for the removal of sulfur oxides
CA 1104792 A · Owner: Foster Wheeler Energy Corporation · Inventors: Steiner, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pollution control system and method in which sulfur oxides in flue gases are adsorbed by activated char in a gas-solid contacting device. The saturated char is regenerated in an integrated desorption-reduction vessel to, which crushed coal and combustion-supporting air are supplied. A portion of the crushed coal is burned to provide the heat for the regeneration of the char, resulting in the formation of sulfur dioxide and carbon dioxide gases and the chemical, consumption of a portion of the char. The remaining crushed coal reduces the sulfur dioxide to gaseous sulfur and, results in a material having a porous system suitable for use in the adsorption of sulfur oxides. The remaining …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 14, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.