Process for treating combustion gases
CA 1107037 A · Owner: Turton, Charles F. · Inventors: Turton, Charles F.; Nelms, William M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is provided for the removal of sulphur dioxide from a combustion gas stream containing said SO2 and particulate solids including flyash, in a wet scrubber having an aqueous slurry-containing sump zone. The process includes the first steps of: (a) passing the gas stream through the wet scrubber to effect SO2 removal. The second step is (b) separately and directly injecting a calcium-containing reactant into the wet scrubber to mix with the aqueous slurry in the sump zone to form, inter alia, calcium sulphite and calcium sulphate the slurry having a pH maintained in the range of approximately 6.0 to 8.5. The third step is (c)discharging at least a portion of the slurry from the wet …
Read the whole patent
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 August 18, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 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.