Total Sa

Total Se

Denis Chretien

Claire Weiss

Salim Azzi

Phuc-Tien Thierry

Aneke Igwume

A method for treating a natural gas containing carbon dioxide using membrane modules which are assigned to a first treatment stage or a second treatment stage and are fluidically connected to a retentate mode or a permeate mode. When evolution in the operating conditions results in one of the processing levels requiring less membrane surface for gas processing and the other processing level requiring more membrane surface for gas processing, then the method allows for reassignment of needed membrane modules assigned from one processing level requiring less membrane surface to another processing level requiring more membrane surface.

Process for treating a natural gas containing carbon dioxide

The invention relates to a method for the treatment of natural gas containing carbon dioxide, methane and paraffins. The method comprising: a step of extracting the paraffins from the natural gas in a paraffin-removal column, and a step of separating the carbon dioxide and the methane in a distillation column. The operation of the two columns being provided by means of the thermal coupling of said two columns using a thermal coupling heat exchanger.

Method and unit for separating the light and heavy components of natural gas

A unit for establishing contact between a liquid and a gas includes: a chamber having a vertical axis; a first series of contact sections disposed along the length of the vertical axis of the chamber; a second series of contact sections disposed along the length of the vertical axis of the chamber, alternated with the contact sections of the first series; and a liquid circulation system designed to circulate a liquid in the contact sections of the first series and in the contact sections of the second series in a separate manner.

Unit for establishing contact between a gas and a liquid for a floating platform

The subject of the invention is a method for treating a natural gas containing ethane, comprising the following stages: Installation for implementing this method.

Method for adjusting the high heating value of gas in the LNG chain

Disclosed is a process for the treatment of gas containing mercaptans and acid gases, including the following steps: (1) separating the acid gases from the said gas and obtaining a sweetened gas and the flow of acid gases containing HS; (2) reacting the HS thus obtained in step (1) according to the Claus reaction; (3) concentrating the mercaptans in at least one cut of the said sweetened gas; (4) extracting the mercaptans of the said cut; and further comprising: (5) transforming the mercaptans into dialkyl-disulfide (DSO); (6) hydrogenating DSO into HS; and (7) reacting the HS thus obtained at step (6) according to the Claus reaction. An installation for carrying out this procedure is also described.

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Paris, France

Denis Chretien