Capture of carbon dioxide (CO2) from air
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United States of America Patent
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May 6, 2014
Grant Date -
Dec 6, 2012
app pub date -
Apr 17, 2008
filing date -
Apr 17, 2007
priority date (Note) -
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Abstract
Disclosed is a method for removing carbon dioxide from a gas stream, comprising placing the gas stream in contact with a resin, wetting the resin with water, collecting water vapor and carbon dioxide from the resin, and separating the carbon dioxide from the water vapor. The resin may be placed in a chamber or a plurality of chambers connected in series wherein the first chamber contains resin that was first contacted by the gas, and each successive chamber contains resin which has been wetted and carbon dioxide collected from for a greater period of time than the previous chamber, and so on, until the last chamber. Secondary sorbents may be employed to further separate the carbon dioxide from the water vapor.
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