Method and system for purifying exhaust gas
CA 1296865 C · Owner: Miura, Yoshimasa · Inventors: Miura, Yoshimasa; Kobayashi, Yoshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
According to the dry method of the invention for purifying an exhaust gas, fine particles of a Ca-type absorbent such as dolomite are sprayed into the exhaust gas and the absorbent particles absorbing acid harmful substances from the gas are collected by a dust collector along with other particles in the exhaust gas. The collected particles are divided by a classifier into a portion of coarse particles chiefly containing fly ash and a portion of absorbent particles not larger than a predetermined size and the latter portion only is supplied to a hydration reactor. The absorbent particles in the reactor are hydrated with superheated water vapor and thereby expanded whereby an inactive shell …
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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 March 10, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 10, 2009.
- 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.