Ifp Energies Nouvelles

Aurelie Wender

Thierry Huard

Bruno Delfort

Julien Grandjean

Dominique Le Pennec

Armelle Nigon

Laetitia Giraudon

Catherine Lefebvre

Jean Kittel

Francois Grosjean

Nicolas Laloue

Aurelie Mouret

Xavier Courtial

Abdelkader Lettat

Antoine Nicola

Karine Gaillard

Marie Dehlinger

The present invention relates to a process for removing acid compounds contained in a gaseous effluent which consists in bringing a gaseous effluent into contact, in the absorption column, with an absorbent solution comprising water, between 20% and 28% by weight of pentamethyldipropylenetriamine and between 5% and 35% by weight of N-methyldiethanolamine.

Method for removing acid compounds from a gaseous effluent using a tertiary amine-based absorbent solution

The invention relates to an absorbent solution and to a method using this solution for removing acid compounds contained in a gaseous effluent, comprising water and at least one diamine with general formula (I) as follows: 

Absorbent solution based on hydroxyl derivatives of 1,6-hexanediamine and method for eliminating acid compounds from a gaseous effluent

The invention concerns novel polyamines having formula (I) obtained from the reaction between a polyol diglycidylether and piperazine: in which n is a whole number between 0 and 30, Rhas different forms, Rhas formula (g), and Rhas formula (g) when n=0  The invention also concerns their preparation method and their use in an absorbing solution based on amines in order to selectively eliminate HS from a gaseous effluent containing HS and CO.

Polyamines, synthesis process thereof and use of same for the selective elimination of HS from a gaseous effluent comprising CO

The invention relates to novel nitrogen compounds belonging to the family of tertiary diamines of general formula (I) below, wherein R is an alkanediyl radical &#x2014;(CH)n- with n=2, 3, 4, 5 or 6. The compound according to the invention is for example N,N,N',N&#x2032;-(tetramethyl)-1,6-diamino-2,5-hexanediol or N,N,N&#x2032;,N&#x2032;-(tetramethyl)-1,8-diamino-2,7-octanediol. The invention also relates to the method for preparing them and to their use for removing acid compounds contained in a gaseous effluent.

Beta-hydroxylated tertiary diamines, a process for their synthesis and their use for eliminating acid compounds a gaseous effluent

The invention relates to an absorbent solution for absorbing acid compounds, such as hydrogen sulfide and carbon dioxide, in a gaseous effluent, containing water and a mixture of amines comprising 1,2-bis-(2-dimethylaminoethoxy)-ethane and 2-[2-(2-dimethylaminoethoxy)-ethoxy]-ethanol, of respective formulas (I) and (II) below, and to a method of removing acid compounds contained in a gaseous effluent using this solution. 

Absorbent solution containing a mixture of 1,2-bis-(2-dimethylaminoethoxy)-ethane and of 2-[2-(2-dimethylaminoethoxy)-ethoxy]-ethanol, and method of removing acid compounds from a gaseous effluent

An absorbent solution is provided for removing acid compounds contained in a gaseous effluent and a method of removing acid compounds contained in a gaseous effluent contacts the gaseous effluent with the absorbent solution. The absorbent solution includes at least one of the following two nitrogen compounds belonging to the family of tertiary diamines:  and water.

Absorbent solution based on beta-hydroxylated tertiary diamines and method of removing acid compounds from a gaseous effluent

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Rueil-Malmaison, France

Aurelie Wender