Ifp Energies Nouvelles

Sebastien Gonnard

Bruno Delfort

Gauthier Perdu

Laetitia Giraudon

Nicolas Laloue

Agnes Leroy

Aurelie Mouret-Henriques

Agnès Leroy

Method of decarbonating a hydrocarbon gas, a natural gas for example, by washing with a solvent. Said gas is contacted with an absorbent solution so as to obtain a CO-depleted gas and a CO-laden absorbent solution. The CO-laden absorbent solution is then heated and expanded at a predetermined pressure and temperature so as to release a hydrocarbon-containing gaseous fraction and to obtain a hydrocarbon-depleted absorbent solution, said pressure and temperature being so selected that said gaseous fraction comprises at least 50% of the hydrocarbons contained in said CO-laden absorbent solution and at most 35% of the COcontained in said CO-laden absorbent solution. Finally, the hydrocarbon-depleted absorbent solution is thermally regenerated so as to release a CO-rich gaseous effluent and to obtain a regenerated absorbent solution.

Hydrocarbon gas decarbonation method

Growing community of inventors

Grezieu La Varenne, France

Sebastien Gonnard