Liquid purification or separation – Processes – Chemical treatment
Reexamination Certificate
2006-10-24
2010-06-08
Hruskoci, Peter A (Department: 1797)
Liquid purification or separation
Processes
Chemical treatment
C208S391000, C210S765000, C210S766000, C423S438000
Reexamination Certificate
active
07731857
ABSTRACT:
A method for treating a process water from a bitumen recovery process in order to obtain carbon dioxide from the process water, which method includes lowering the pH of the process water, thereby causing carbon dioxide to evolve from the process water as evolved carbon dioxide gas. The evolved carbon dioxide gas may be collected and compressed, and water vapour associated with the evolved carbon dioxide gas may be separated from the evolved carbon dioxide gas. After the carbon dioxide has been obtained from the process water, the process water and the water vapour separated from the evolved carbon dioxide gas may be recycled back to the bitumen recovery process. The evolved carbon dioxide gas may be stored for future use or sale. The method may also include heating the process water in order to reduce the solubility of carbon dioxide in the process water.
REFERENCES:
patent: 2132607 (1938-10-01), Davis et al.
patent: 3692634 (1972-09-01), Othmer
patent: 4414117 (1983-11-01), Yong et al.
patent: 5085782 (1992-02-01), Gallup et al.
patent: 5273661 (1993-12-01), Pickett et al.
patent: 5645714 (1997-07-01), Strand et al.
patent: 5780678 (1998-07-01), Baniel et al.
patent: 6521365 (2003-02-01), Song
patent: 6667273 (2003-12-01), Cullen et al.
patent: 6863819 (2005-03-01), Maree
patent: 7037434 (2006-05-01), Myers et al.
patent: 2005/0103323 (2005-05-01), Engdahl
patent: 1022098 (1977-12-01), None
patent: 2030934 (1992-05-01), None
patent: 2124199 (1992-06-01), None
patent: 2123076 (1998-11-01), None
patent: 2520110 (2005-09-01), None
patent: 10033938 (1998-02-01), None
patent: 11243985 (1999-09-01), None
Somers John M.
Strand William L.
Bitmin Resources Inc.
Hruskoci Peter A
Kuharchuk Terrence N.
Rodman & Rodman
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