Gas separation: processes – Solid sorption – Inorganic gas or liquid particle sorbed
Reexamination Certificate
2005-06-21
2005-06-21
Spitzer, Robert H. (Department: 1724)
Gas separation: processes
Solid sorption
Inorganic gas or liquid particle sorbed
C095S139000, C095S148000, C096S154000, C423S230000, C502S405000
Reexamination Certificate
active
06908497
ABSTRACT:
New low-cost CO2sorbents are provided that can be used in large-scale gas-solid processes. A new method is provided for making these sorbents that involves treating substrates with an amine and/or an ether so that the amine and/or ether comprise at least 50 wt. percent of the sorbent. The sorbent acts by capturing compounds contained in gaseous fluids via chemisorption and/or physisorption between the unit layers of the substrate's lattice where the polar amine liquids and solids and/or polar ether liquids and solids are located. The method eliminates the need for high surface area supports and polymeric materials for the preparation of CO2capture systems, and provides sorbents with absorption capabilities that are independent of the sorbents' surface areas. The sorbents can be regenerated by heating at temperatures in excess of 35° C.
REFERENCES:
patent: 2818323 (1957-12-01), Haensel
patent: 4786294 (1988-11-01), Jonqueres et al.
patent: 4810266 (1989-03-01), Zinnen et al.
patent: 5061455 (1991-10-01), Brose et al.
patent: 5087597 (1992-02-01), Leal et al.
patent: 5231063 (1993-07-01), Fukumoto et al.
patent: 5366719 (1994-11-01), van Wingerden et al.
patent: 5376614 (1994-12-01), Birbara et al.
patent: 5492683 (1996-02-01), Birbara et al.
patent: 5609842 (1997-03-01), Tsybulevski et al.
patent: 5876488 (1999-03-01), Birbara et al.
patent: 5882622 (1999-03-01), Easley et al.
patent: 6004522 (1999-12-01), England
patent: 6364938 (2002-04-01), Birbara et al.
patent: 6429170 (2002-08-01), Dodwell
patent: 6500237 (2002-12-01), Winchester et al.
patent: 6547854 (2003-04-01), Gray et al.
patent: 2002/0083833 (2002-07-01), Nalette et al.
patent: 2002/0178915 (2002-12-01), Shore et al.
patent: 2003/0032555 (2003-02-01), Dodwell
patent: 2003/0075050 (2003-04-01), Kato et al.
“Reversible Adsorption of Carbon Dioxide on Amine Surface-Bonded Silica Gel”, Elsevier Science S. A, 184-189 Leal, et al.,Mar. 1995.
Alwan Joy
Anderson Thomas G.
Gottlieb Paul A.
Spitzer Robert H.
The United States of America as represented by the Department of
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