Method for processing waste or biomass material
CA 2255218 A1 · Owner: Droan B.V. · Inventors: Jungk, Klaus; Lotens, Jan Pieter; Hazewinkel, Jacob Hendrik Obbo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for processing waste or biomass material into valuable products such as for example, combustible gases, which is characterized in that, (a) the waste or biomass material is subjected to a pyrolysis at a temperature of 350-650°C, advantageously 450-550°C; (b) the gas released in the course of the pyrolysis is subjected -without condensation - to a cracking treatment at a temperature of 1100-1600°C advantageously 1200-1400°C, under the influence of oxygen-rich gas introduced from outside and possibly of steam; (c) the residue liberated in the course of the pyrolysis is gasified under a pressure of 0.5-1.5 bar, advantageously 0.8-1.2 bar at a temperature of, …
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 December 3, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 3, 2020.
- 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.