C - Chemistry – Metallurgy – 10 – J
Patent
C - Chemistry, Metallurgy
10
J
48/7
C10J 3/48 (2006.01) C10F 7/00 (2006.01)
Patent
CA 1174852
SOLUBILIZING AND OXIDIZING OF PEAT ABSTRACT OF THE DISCLOSURE Methane is produced from peat by solubilizing the phenolic polymers therein, and oxidizing the solute to produce short chain molecules. The short chain molecules are fermented to produce a gas that this scrubbed to remove CO2 to produce methane. Solubilizing takes place in a vertically oriented pressurized vessel that is circular in cross-section and divided into a number of regular vertically elongated compartments, each comprising a circular sector in cross-section, and extending the majority the height of the vessel. Slurried peat is fed into the top of one compartment while another compartment is being emptied from the bottom, the compartment being filled or emptied being progressively changed in response to rotation of a central shaft in the vessel. Oxidation of solubilized peat takes place in a structure that transports the solubilized peat in a substantially vertical wave path from an inlet to an outlet with oxygen being introduced at the bottoms of segments of the wave path, and CO2 being withdrawn from the tops of segments of the wave path while the solubilized peat is maintained at a pressure above atmospheric. Coolant is circulated around the wave path to remove the exothermic heat of reaction, and the coolant is flashed into steam used elsewhere in the process.
379995
Elmore Carl L.
Funk Erwin D.
Poulin Ted M.
Goudreau Gage Dubuc
Kamyr Inc.
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