| 摘要 |
<p>A process for purifying a synthesis gas containing at least 50% of a mixture of CO and of H2 and from 10% to 50% of acidic gases is described herein. In an embodiment the process for purifying a gas comprises at least 50% by volume of a mixture of CO and of H2 and from 10% to 50% by volume of an acidic gas chosen from CO2, H2S and a mixture of CO2 and of H2S, comprising a step (a) consisting in contacting the gas with a washing solvent so as to absorb acidic gas in the washing solvent, and a step (b) consisting in recovering, on the one hand, a purified gas stream, and, on the other hand, the spent washing solvent, the washing solvent comprising at least one compound of formula CH3—(OCH2)n-O—CH3, n being between 1 and 20.</p> |
