Two stage hydroprocessing and stripping in a single reaction vessel
CA 2423533 C · Owner: Gupta, Ramesh · Inventors: Gupta, Ramesh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hydrocarbonaceous feed is hydroprocessed in a single stage vessel containing two reaction stages represented by (14) and (18) and a stripping stage. The feed is fed into the first reaction stage (14) to produce a vapor and liquid effluent which are separated in a separator (16) and the liquid stripped. The , stripped liquid is passed as feed into the second stage (18) in which it , meets with fresh hydrogen to produce a hydroprocessed liquid product and a hydrogen-rich vapor. The vapor (38) is passed into the first stage (14) to provide the hydrogen for that stage. The use of a single vessel provides an efficient and economical addition to, or replacement for a vessel for an , …
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
- Filed October 9, 2001 and granted July 5, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 9, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2023.
- 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.