| http://www.w3.org/ns/prov#value | - U.S. Pat. No. 4,197,095 discloses the adsorption of component(s) from a gas feed using a dual bed adsorption process in which operating conditions including the flow rate, inlet and outlet temperatures, inlet and outlet pressures and regenerating pressures are sensed; the quantity of purge flow required to regenerate the bed calculated; the purge flow rate under the operating conditions calculated
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