Gas separation: processes – With control responsive to sensed condition – Concentration sensed
Reexamination Certificate
2005-08-02
2005-08-02
Spitzer, Robert H. (Department: 1724)
Gas separation: processes
With control responsive to sensed condition
Concentration sensed
C095S022000, C095S096000, C095S127000, C095S130000, C096S111000, C096S113000, C096S130000, C096S143000
Reexamination Certificate
active
06923844
ABSTRACT:
A gas separation method and apparatus that recovers efficiently principal gas components from a feed gas that includes a plurality of components, and enables supplying the product gases continuously at a stable flow rate and component concentration. A first separation step using a first adsorption column and a second separation step using a second adsorption column are provided, a circulating feed gas, consisting of the recovered exhaust gases discharged in each of the steps and the feed gas, is used as a gas to be separated. The outflow rate and component concentration of a second gas product are maintained constant by controlling the outflow rate of the first gas product.
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Kawai Masato
Nagasaka Tooru
Nakamura Akihiro
Urakami Tatsushi
Spitzer Robert H.
Taiyo Nippon Sanso Corporation
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