Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through substantially solid...
Reexamination Certificate
2008-09-05
2010-10-26
Greene, Jason M (Department: 1797)
Gas separation: processes
Selective diffusion of gases
Selective diffusion of gases through substantially solid...
C096S004000, C096S007000, C096S010000, C096S011000, C210S640000, C210S500210, C210S500220, C055S523000, C422S212000, C422S222000
Reexamination Certificate
active
07819944
ABSTRACT:
A dehydration method by which water is selectively separated from a water-containing mixture31with a separation membrane. The separation membrane is a DDR type zeolite membrane2. The dehydration method includes bringing the mixture31into contact with one side of the DDR type zeolite membrane2and causing a pressure difference between that side of the DDR type zeolite membrane2which is in contact with the mixture and the other side of the DDR type zeolite membrane2to thereby cause the water to selectively permeate and separate out. By the dehydration method, water can be selectively separated from a water-containing mixture without the need of a high energy cost. The separation membrane has excellent acid resistance.
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Nakayama Kunio
Niino Makiko
Tomita Toshihiro
Yajima Kenji
Burr & Brown
Greene Jason M
NGK Insulators Ltd.
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