Process for separating carbon dioxide from an oxygenate-to-olefin effluent stream
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United States of America Patent
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Nov 14, 2006
Grant Date -
Dec 30, 2004
app pub date -
Jun 25, 2003
filing date -
Jun 25, 2003
priority date (Note) -
Expired
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Abstract
The present invention is a process for removal of carbon dioxide from a reactor effluent stream comprising water, carbon dioxide and olefin(s), where a portion of the carbon dioxide is removed in a quenching step with a quench medium and more carbon dioxide is removed by contacting the quenched effluent stream with an alkaline stream. A portion of the alkaline stream is added to the quench medium.
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