Process and Apparatus for the Separation of Methane from a Gas Stream
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United States of America Patent
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Issued Date -
Oct 22, 2009
app pub date -
Feb 27, 2009
filing date -
Feb 29, 2008
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Abstract
Processes for conversion of a carbonaceous composition into a gas stream comprising methane are provided, where an energy-efficient process and/or apparatus is used to separate methane out of a gas stream comprising methane, carbon monoxide, and hydrogen. Particularly, methane can be separated from hydrogen and carbon monoxide using novel processes and/or apparatuses that generate methane hydrates. Because hydrogen and carbon monoxide do not readily form hydrates, the methane is separated from a gas stream. The methane can be captured as a substantially pure stream of methane gas by dissociating the methane from the hydrate and separating out any residual water vapor.
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