Ifp Energies Nouvelles

Axens

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Thyssenkrupp Industrial Solutions Ag

Total Raffinage Chimie

Avril

Bionext

Centre National De La Recherche Scientifique

David Chiche

Delphine Bazer-Bachi

Olivier Ducreux

Joseph Lopez

Patrick Euzen

Norbert Ullrich

Tom Frising

Thomas Serres

Marc Antoine Lelias

Damien Leinekugel Le Cocq

Arnaud Baudot

Laurent Bournay

Nicolas Boudet

Christophe Geantet

Priscilla Avenier

Jean-Philippe Heraud

Anne Claire Pierron

Jean Christophe Viguie

Stéphane Fedou

Guillaume Boissonnet

Michael Hecquet

Anne Claire Lucquin

Jean-Christophe Viguie

Vincent Girard

Julien Rousseau

Raphael Lemaire

Christine Bounie

The present invention relates to a process for depolymerizing a polyester feedstock comprising opaque PET, which comprises: a) a conditioning step; b) a step of glycolysis, operated at between 180 and 400° C., a residence time of from 0.1 to 10 h in the presence of diol; c) a diol separation step, at a temperature of between 100 and 250° C., a pressure lower than that of step b) and producing a diol effluent and an effluent rich in monomers; d) a step of separating into a heavy impurities effluent and a prepurified monomers effluent, at a temperature of less than 250° C. and a pressure of less than 0.001 MPa and a residence time of less than 10 min; e) a step of decolourizing the prepurified monomers effluent, by adsorption of a mixture comprising between 20% and 90% by weight of the prepurified monomers effluent and a solvent, at a temperature of between 100 and 200° C., a pressure of between 0.1 and 1.0 MPa and in the presence of at least one adsorbent.

Method for obtaining a purified diester effluent by depolymerising a polyester comprising opaque polyethylene terephthalate

The invention relates to a method for preparing a solid comprising the mixture of a set of compounds comprising at least one Cu(OH)COpowder, one metal oxide powder selected from the group of metals consisting of copper, zinc, iron, manganese and mixtures thereof, and at least one binder as well as the use of the solid prepared by means of this method.

Method for preparing solids from a mixture of at least one malachite powder and an oxide powder and the use of said solids

The invention relates to a method for preparing a solid comprising a step of mixing a set of compounds comprising at least two Cu(OH)COpowders of different particle sizes and at least one binder and the use of the solid prepared by means of this method.

Method for preparing solids from a mixture of at least two malachite powders

The invention relates to a process for purifying synthesis gas, comprising at least one stage for separating the crude synthesis gas to be treated into at least two effluents, namely a first part and a complementary part, in which the said first part is subjected to a carbon monoxide conversion stage with steam and the said complementary part is subjected to a COS and HCN catalytic hydrolysis stage, the two gas flows, namely the first part and complementary part, are then each treated separately in two stages intended to remove acid gases such as COand HS, by washing with aqueous solutions of specific amines, before a recombination stage of the two treated effluents.

Process for purifying synthesis gas by washing with aqueous solutions of amines

A process for capturing sulphur impurities present in gas feeds containing Hand/or CO:

Process for capturing sulphur impurities using specific retaining materials

The present invention concerns an integrated process for the production of liquid hydrocarbons starting from a feed containing at least one fraction of biomass and optionally at least one fraction of another feed, said process comprising at least one pre-treatment step, a gasification step, a step for conditioning synthesis gas, a water scrubbing step, a step for eliminating acid gases, a final purification step, and a catalytic Fischer-Tropsch synthesis reaction step.

Process for the conversion of a feed containing biomass for the production of hydrocarbons, by Fischer-Tropsch synthesis

The invention concerns a process for preparing a solid comprising ZnO and a binder comprising the following steps: pre-mixing powders comprising at least one ZnO powder and at least one binder (step a), mixing the paste obtained (step b), extruding (step c) the paste obtained in step b), drying the extrudates, and calcining (step d) in a stream of gas comprising oxygen.

Preparation of a solid based on zinc oxide for use in purifying a gas or a liquid

The invention relates to a process for finally removing sulphur-containing, nitrogen-containing and halogen-containing impurities contained in a synthesis gas, said process including: The synthesis gas purified in accordance with the process of the invention contains less than 10 ppb by weight, less than 10 ppb by weight of nitrogen-containing impurities and less than 10 ppb by weight of halogen-containing impurities.

Process for removing sulphur-containing, nitrogen-containing and halogen-containing impurities contained in a synthesis gas

Growing community of inventors

Lyons, France

David Chiche