Gas separation: processes – Solid sorption – Inorganic gas or liquid particle sorbed
Reexamination Certificate
2005-11-01
2005-11-01
Spitzer, Robert H. (Department: 1724)
Gas separation: processes
Solid sorption
Inorganic gas or liquid particle sorbed
C095S126000, C095S900000, C095S901000, C096S122000, C096S128000, C096S130000, C096S135000, C096S142000, C096S144000, C096S153000
Reexamination Certificate
active
06960243
ABSTRACT:
A method and apparatus for the extraction of water from a gas stream, such as atmospheric air. The method includes contacting the gas stream with a porous adsorbent material having a surface modifying agent adsorbed on the surface of a porous support. The surface modifying agent creates a hydrophilic surface for the adsorption of the water. After the water is adsorbed into the pores, the surface modifying agent is selectively desorbed from the surface. The water then evaporates from the pore and can be collected in a condenser. The method and apparatus of the present invention advantageously operate in a substantially isothermal manner, thereby reducing the size and power consumption of the device. The device can advantageously be used to extract potable drinking water from atmospheric air.
REFERENCES:
patent: 3296773 (1967-01-01), Hemstreet
patent: 3400515 (1968-09-01), Ackerman
patent: 3791910 (1974-02-01), Bowser
patent: 4219341 (1980-08-01), Hussmann
patent: 4285702 (1981-08-01), Michel et al.
patent: 4299599 (1981-11-01), Takeyama et al.
patent: 4304577 (1981-12-01), Ito et al.
patent: 4342569 (1982-08-01), Hussmann
patent: 4344778 (1982-08-01), Matsuoka et al.
patent: 4345917 (1982-08-01), Hussmann
patent: 4365979 (1982-12-01), Takeyama et al.
patent: 4377398 (1983-03-01), Bennett
patent: 4661128 (1987-04-01), Bachhofer et al.
patent: 4711645 (1987-12-01), Kumar
patent: 4726817 (1988-02-01), Roger
patent: 5233843 (1993-08-01), Clarke
patent: 5281257 (1994-01-01), Harris
patent: 5401706 (1995-03-01), Fischer
patent: 5435958 (1995-07-01), Dinnage et al.
patent: 5817167 (1998-10-01), DesChamps
patent: 5846296 (1998-12-01), Krumsvik
patent: 5989314 (1999-11-01), Schaub et al.
patent: 6059860 (2000-05-01), Larson
patent: 6156102 (2000-12-01), Conrad et al.
patent: 6251172 (2001-06-01), Conrad
patent: 6331351 (2001-12-01), Waters et al.
patent: 6336957 (2002-01-01), Tsymerman
patent: 6344071 (2002-02-01), Smith et al.
patent: 6453684 (2002-09-01), Spletzer et al.
patent: 6511525 (2003-01-01), Spletzer et al.
Ahmed M. Hamed, “Parametric Study of the Absorption-Desorption System Producing Water from Ambient Air”, International Journal of Renewable Energy Engineering, vol. 2, No. 3, Dec. 2000 (Abstract Only).
Wim J. J. Welters et al., “Fast Electrically Switchable Capillary Effects”, Langnuir, 14 (7), 1538, 1998.
Markus Tuller et al., “Absorption and Capillary Condensation in Porous Media: Liquid Retention and Interfacial Configurations in Angular Pores”, Water Resources Research, vol. 35, No. 7, pp. 1949-1964, Jul. 1999.
Nicholas L. Abbott et al. “Active Control of Wetting Using Applied Electrical Potentials and Self-Assembled Monolayers” Langmuir, vol. 11, No. 1, pp. 16-18, 1995.
Dusenbury James S.
Smith Douglas M.
Warren William L.
Marsh & Fischmann & Breyfogle LLP
Nanopore, Inc.
Spitzer Robert H.
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