Apparatus and process for the separation of gases using supersonic expansion and oblique wave compression
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United States of America Patent
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Jul 8, 2014
Grant Date -
Feb 14, 2013
app pub date -
Aug 12, 2011
filing date -
Aug 12, 2011
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Abstract
The disclosure provides an apparatus and method for gas separation through the supersonic expansion and subsequent deceleration of a gaseous stream. The gaseous constituent changes phase from the gaseous state by desublimation or condensation during the acceleration producing a collectible constituent, and an oblique shock diffuser decelerates the gaseous stream to a subsonic velocity while maintain the collectible constituent in the non-gaseous state. Following deceleration, the carrier gas and the collectible constituent at the subsonic velocity are separated by a separation means, such as a centrifugal, electrostatic, or impingement separator. In an embodiment, the gaseous stream issues from a combustion process and is comprised of N2 and CO2.
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