Gas separation: processes – Selective diffusion of gases – Selective diffusion of gases through substantially solid...
Reexamination Certificate
2006-03-21
2006-03-21
Spitzer, Robert H. (Department: 1724)
Gas separation: processes
Selective diffusion of gases
Selective diffusion of gases through substantially solid...
C096S007000, C096S010000, C096S011000, C055S524000
Reexamination Certificate
active
07014680
ABSTRACT:
A DDR type zeolite membrane formed on a substrate includes silica as a main component. The DDR type zeolite membrane separates at least one type of a gas component from a mixed gas containing at least two types of gases selected from a group consisting of carbon dioxide (CO2), hydrogen (H2), oxygen (O2), nitrogen (N2), methane (CH4), normal butane (n-C4H10), isobutane (i-C4H10), sulfur hexafluoride (SF6), ethane (C2H6), ethylene (C2H4), propane (C3H8), propylene (C3H6), carbon monoxide (CO), and nitrogen monoxide (NO). Each single gas permeance at room temperature and 100° C. are different, respectively, in order to separate at least one selected gas component from the mixed gas.
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Nakayama Kunio
Suzuki Kenji
Tomita Toshihiro
Yajima Kenji
Yoshida Manabu
Burr & Brown
NGK Insulators Ltd.
Spitzer Robert H.
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