RECOVERY OF CO2 IN A PROCESS FOR SYNTHESIS OF METHANOL
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United States of America Patent
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Issued Date -
Dec 22, 2011
app pub date -
Mar 8, 2010
filing date -
Mar 13, 2009
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Abandoned
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Abstract
A process for producing methanol, where a hydrocarbon feedstock (1) is reformed and a make-up syngas is reacted in a synthesis loop, obtaining crude methanol which is further treated to obtain high-grade methanol, and where the carbon dioxide dissolved in the crude methanol is recycled to the reforming section in order to adjust the stoichiometric number of the make-up syngas. In a preferred embodiment, a flash gas (9) separated from the crude methanol (8) and light ends (10) coming from distillation are recycled to a compressor (106) and fed to a primary reformer (100); further carbon dioxide can be recycled from the flue gas (11).
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