Fremgangsmåte for avsyring av gass ved absorpsjon i et lösemiddel

In a process for treating a gas containing acid gases, the gas is contacted with a methanol-containing aqueous phase and is then contacted in an absorption column with a mixture of solvents including mehtanol, water and a solvent heavier than methanol. Then, the mixture of solvents is at least partl...

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Bibliographic Details
Main Authors VILTARD, JEANARLES, LEMAIRE, ERIC
Format Patent
LanguageNorwegian
Published 27.03.2002
Edition7
Subjects
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Summary:In a process for treating a gas containing acid gases, the gas is contacted with a methanol-containing aqueous phase and is then contacted in an absorption column with a mixture of solvents including mehtanol, water and a solvent heavier than methanol. Then, the mixture of solvents is at least partly regenerated through pressure reduction and/or heating. The treated gas is cooled by producing at least a methanol-containing aqueous phase that is at least partly recycled. The mixture of solvents flowing out at the bottom of the absorption column is cooled, then re-introduced at a higher level of the absorption column so as to control the temperature in the absorption column.
Bibliography:Application Number: NO20010004647