Institut Francais Du Pe'trole

Nouvelles Applications Technologiques (nat)

Christophe Lermite

Joseph Y Larue

Alexandre Rojey

Jean-Claude Amande

Bernard Chambon

A method of separating a mixture of gases by the following stages:

Method of separating a mixture of gases by absorption

For the regeneration of a liquid desiccant, a stripping agent is used which is liquid at ambient temperature and pressure, and forms a heteroazeotrope with water, along with the following steps: (a) distillation of the water-laden liquid desiccant to form vapor and partially regenerated liquid desiccant; (b) reboil partially regenerated liquid desiccant; (c) stripping of partially regenerated liquid desiccant during (a) and (b), using vaporized stripping agent; (d) a condensing of vapor the exiting the distillation, the condensation producing two liquid phases, one mainly water and the other mainly stripping agent; (e) heating the stripping agent-rich liquid phase exiting step (d) to generate a vapor phase which is richer in water than said liquid phase and a water-depleted liquid phase; and (f) returning the vaporized liquid phase exiting step (e) to step (c).

Process for the regeneration of a desiccant

A process for the dehydration and/or desalination and simultaneous fractionation of a petroleum deposit effluent containing oil, associated gas and water which can be saline, which process comprises:

Process for dehydration and/or desalination and for simultaneous

A description is given of a process for the fractionation of oil and gas on a petroleum deposit effluent, including:

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Paris, France

Christophe Lermite