Process for separating carbon monoxide having substantially constant purity
CA 1300522 C · Owner: Kawasaki Steel Corporation · Inventors: Kawata, Kyoichi; Matsui, Shigeo; Koizumi, Susumu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided an improved process for forming high purity carbon monoxide wherein a product of substantially uniform purity is obtained. A waste gas containing at least CO, CO2 and N2 is treated by pressure swing adsorption in two stages to remove CO2 and CO, respectively. The CO content of at least the feed gas and the second stage product gas are monitored and an amount of second stage product gas is recycled to the feed gas and/or the first stage product gas sufficient to assure substantially uniform CO content in the second stage product gas withdrawn from the system.
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 May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 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.