Methods for using hydrophobic liquid to compress steam

Distillation: processes – separatory – And recovering heat by indirect heat exchange – Utilizing recovered heat for heating feed

Reexamination Certificate

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Details

C062S116000, C062S501000, C159S024100, C159S024200, C159S024300, C203S026000, C203S100000, C203SDIG004, C203SDIG008

Reexamination Certificate

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06846390

ABSTRACT:
Methods for using a hydrophobic liquid, such as mineral oil, to compress steam include using a compressor to compress a mixture of steam and the hydrophobic liquid. One embodiment includes the steam to be compressed coming from a boiling aqueous solution in an evaporator. The steam compressed with a hydrophobic liquid is routed to a heat exchanger which thermally communicates with the evaporator to create more steam. The resulting mixture of condensed steam and hydrophobic liquid from the heat exchanger is routed to a water/hydrophobic liquid separator. The hydrophobic liquid is also recycled to the compressor from the water/hydrophobic liquid separator.

REFERENCES:
patent: 1961211 (1934-06-01), Graham
patent: 4030985 (1977-06-01), Barba et al.
patent: 4186060 (1980-01-01), Katz et al.
patent: 4282070 (1981-08-01), Egosi
patent: 4820542 (1989-04-01), de Mathan
patent: 6350351 (2002-02-01), Popov et al.
patent: 6365005 (2002-04-01), Schleiffarth

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