Ifp Energies Nouvelles

Total Sa

Institut Francais Du Pe'trole

Prosernat

Prosternat

Axens

Gauthier Perdu

Julia Magne-Drisch

Christian Streicher

Pascal Alix

Claire Weiss

Philippe Beard

Jean Elgue

Manel Fourati

Benoit Mares

Damien Roquet

Nicolas Laloue

Viep Hoang Dinh

Agnes Leroy

Jean-Paul Cousin

Christina Streicher

Anne-Claire Lucquin

Sebastien Gonnard

Emile Fillatre

Vincent Carlier

Clément Salais

Maxime Fournie

Thomas Maubert

Agnès Leroy

The present invention relates to a gas-redirecting device presenting an upper plane and a plurality of gas-redirecting tubes comprising an inlet end and an outlet end. For each gas-redirecting tube, the orthogonal projections of the inlet end and the outlet end onto the upper plane have an over-lapping area of at most 50% of the total area of the upper plane covered by the orthogonal projections. Also provided is a liquid-gas contacting column comprising a gas-redirecting device, a floating support comprising a liquid-gas contacting column, at least two packed beds and a method for improving the efficiency of a liquid-gas contacting column which is based on redirecting the gas from a wetted zone of a lower packed bed to a wetted zone of the higher packed bed.

Gas redirecting device for liquid-gas contacting column

The present invention is directed to a process for the removal of aromatic hydrocarbons from a lean acid gas containing less than 20 mol. % of HS, comprising:

Removal of aromatic hydrocarbons from lean acid gas feed for sulfur recovery

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

The invention provides a method of extracting the hydrogen sulfide contained in a gas comprising aromatic hydrocarbons, wherein the following stages are carried out: a) contacting said gas with an absorbent solution so as to obtain a gas depleted in hydrogen sulfide and an absorbent solution laden with hydrogen sulfide, b) heating and expanding the hydrogen sulfide-laden absorbent solution to a predetermined temperature and pressure so as to release a gaseous fraction comprising aromatic hydrocarbons and to obtain an absorbent solution depleted in aromatic hydrocarbons, said temperature and pressure being so selected that said gaseous fraction comprises at least 50% of the aromatic hydrocarbons and at most 35% hydrogen sulfide contained in said hydrogen sulfide-laden absorbent solution, c) thermally regenerating the absorbent solution depleted in aromatic hydrocarbon compounds so as to release a hydrogen sulfide-rich gaseous effluent and to obtain a regenerated absorbent solution.

Method of extracting the hydrogen sulfide contained in a hydrocarbon gas

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Suresnes, France

Gauthier Perdu