Adsorbent fractionator with system gas powered cycle control and process
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United States of America Patent
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-
Jun 3, 1980
Issued Date -
N/A
app pub date -
Nov 6, 1978
filing date -
Jul 18, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus are provided for adsorbing a first gas from a mixture thereof with a second gas, to reduce the concentration of the first gas in the mixture to below a desired maximum concentration, in which the adsorption cycle is timed according to the rate of fill through an orifice of a space of predetermined volume by withdrawing a portion of system gas, feeding such system gas portion into a space of predetermined volume through an adjustable orifice, accumulating the withdrawn system gas in the space, and discontinuing the adsorption cycle when the volume and/or pressure of accumulated system gas in the space reaches or exceeds a predetermined minimum, thereby making it possible to control the cycling independently of any external control or power source.
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