Refrigeration – Cryogenic treatment of gas or gas mixture – Solidification
Reexamination Certificate
2006-03-21
2006-03-21
Hruskoci, Peter A. (Department: 1724)
Refrigeration
Cryogenic treatment of gas or gas mixture
Solidification
C062S617000, C095S039000, C095S288000, C585S015000
Reexamination Certificate
active
07013673
ABSTRACT:
Processes and apparatus are disclosed for separating and purifying aqueous solutions such as seawater by causing a substantially impermeable mat of gas hydrate to form on a porous restraint. Once the mat of gas hydrate has formed on the porous restraint, the portion of the mat of gas hydrate adjacent to the restraint is caused to dissociate and flow through the restraint, e.g., by lowering the pressure in a collection region on the opposite side of the restraint. The purified or desalinated water may then be recovered from the collection region. The process may be used for marine desalination as well as for drying wet gas and hydrocarbon solutions. If conditions in the solution are not conductive to forming hydrate, a heated or refrigerated porous restraint may be used to create hydrate-forming conditions near the restraint, thereby causing gas hydrates to form directly on the surface of the restraint.
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Fagin, Esq. Kenneth M.
Hruskoci Peter A.
Marine Desalination Systems L.L.C.
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