Power plants – Motive fluid energized by externally applied heat – Process of power production or system operation
Reexamination Certificate
2004-07-16
2008-09-30
Nguyen, Hoang M (Department: 3748)
Power plants
Motive fluid energized by externally applied heat
Process of power production or system operation
C060S671000
Reexamination Certificate
active
07428816
ABSTRACT:
A process for recovering waste heat which comprises: (a) passing a liquid phase working fluid through a heat exchanger in communication with a process which produces the waste heat; (b) removing a vapor phase working fluid from the heat exchanger; (c) passing the vapor phase working fluid to an expander, wherein the waste heat is converted into mechanical energy; and (d) passing the vapor phase working fluid from the expander to a condenser, wherein the vapor phase working fluid is condensed to the liquid phase working fluid. The preferred working fluid is an organic Rankine cycle system working fluid comprising compounds having the following general structure:where x, y, z, and m are each selected from the group consisting of: fluorine, hydrogen, Rf, and R, wherein R and Rfare each an alkyl, aryl, or alkylaryl of 1 to 6 carbon atoms, and wherein Rfis partially or fully fluorinated.
REFERENCES:
patent: 3707843 (1973-01-01), Conner et al.
patent: 3714273 (1973-01-01), Tullock
patent: 3753345 (1973-08-01), Cassidy et al.
patent: 4080791 (1978-03-01), Nadler et al.
patent: 4541943 (1985-09-01), Powell et al.
patent: 4590384 (1986-05-01), Bronicki
patent: 4628869 (1986-12-01), Symsek et al.
patent: 4736045 (1988-04-01), Drakesmith et al.
patent: 4876855 (1989-10-01), Yogev et al.
patent: 5118360 (1992-06-01), Li et al.
patent: 5254755 (1993-10-01), Li et al.
patent: 5272879 (1993-12-01), Wiggs et al.
patent: 5618781 (1997-04-01), Magid et al.
patent: 5705716 (1998-01-01), Li
patent: 6076355 (2000-06-01), Ven et al.
patent: 6248823 (2001-06-01), Hrivnak et al.
patent: 6365289 (2002-04-01), Lee et al.
patent: 6374907 (2002-04-01), Tousignant et al.
patent: 6423673 (2002-07-01), Owens et al.
patent: 6598397 (2003-07-01), Hanna et al.
patent: 6883328 (2005-04-01), Bronicki
patent: 6991744 (2006-01-01), Mahler et al.
patent: 7189884 (2007-03-01), Mukhopadhyay et al.
patent: 7208099 (2007-04-01), Minor et al.
patent: 2004/0119047 (2004-06-01), Singh et al.
patent: 2005/0151110 (2005-07-01), Minor et al.
patent: 2005/0151113 (2005-07-01), Minor et al.
patent: 2005/0241805 (2005-11-01), Singh et al.
patent: 2005/0262842 (2005-12-01), Claasen et al.
patent: 2759286 (1979-07-01), None
patent: WO98/06791 (1998-02-01), None
patent: WO 2004/033859 (2004-04-01), None
Hulse Ryan
Singh Rajiv R
Wilson David P
Zyhowski Gary J
Honeywell International , Inc.
Nguyen Hoang M
Szuch Colleen D.
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