Method and composition for neutralizing acidic components in petroleum refining units
CA 1202264 A · Owner: Betzdearborn Canada Inc. · Inventors: Niu, Joseph H.Y.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and compositions are disclosed for neutralizing acidic components in petroleum refining units. The neutralizing agent comprises a member selected from the group of dimethylaminoethanol and dimethylisopropanolamine. The neutralizing agent may be added directly to the charge, in a reflux line or directly to the, overhead line of the refining unit. In those instances in which sour crude is to be refined, it is desirable that dimethylisopropanolamine be used in conjunction with the dimethylaminoethanol. The neutralizing agents are added in an amount sufficient to elevate the pH of the condensate (as measured at the accumulator) to within the pH range of 4.5-7.
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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 25, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 25, 2003.
- 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.