Method for the purification of gases containing volatile organic compounds
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United States of America Patent
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May 22, 2018
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N/A
app pub date -
Jan 23, 2015
filing date -
Feb 3, 2014
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Abstract
The present invention relates to a method for purifying a gas comprising: a) feeding the gas (1) to an absorber (5) and bringing into contact said gas (1) with a stream (3) (or alternatively (3′)) to obtain a liquid (4) and a purified gas stream (2); b) feeding the liquid (4) to a conditioning tank (9) and adding a mineral nutrient medium (6) and a suitable amount of base (7) to the liquid (4) to obtain a liquid effluent (8); c) feeding the liquid effluent (8) to an anaerobic bioreactor (14) to obtain a biomethane stream (11) and a liquid stream (12); d) feeding the liquid stream (12) to a degasser (20) to obtain a gas stream (18) and a stream (3′); and e) recirculating the stream (3′) by feeding it to the absorber (5).
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