Ifp Energies Nouvelles

Centre National De La Recherche Scientifique

Ifp Emergies Nouvelles

University Claude Bernard - Lyon 1

Cnrs

Amandine Cabiac

Emmanuelle Guillon

Damien Delcroix

Nadine Essayem

Catherine Pinel

Franck Rataboul

Flora Chambon

Alexandra Chaumonnot

Sylvie Maury

Christophe Vallee

Etienne Girard

Nicolas Cadran

Antoine Hugon

Laurent Simon

Marc Jacquin

Vincent Lecocq

Cecile Thomazeau

Audrey Bonduelle-Skrzypczak

Alexandre Chambard

Etienne Girel

Emilie Brule

Vincent Zozaya

The invention relates to a method for hydroprocessing a hydrocarbon feed, operated at a temperature of between 180&#xb0; C. and 450&#xb0; C., in the presence of a catalyst comprising i) a composite material comprising a compound based on at least one crystalline aluminium solid and carbon, the deposited carbon content being between 1 and 25 wt. % of the total mass of the composite material, and ii) at least one element of group VIB and at least one element of group VIII, in the sulfide form thereof, said catalyst being produced by a method comprising at least: a) a step of bringing a carbon precursor into contact with a compound based on at least one crystalline aluminium solid, b) a step of thermally treating the solid produced by step a), c) repeating steps a) and b) until the desired deposited carbon content is reached, d) depositing at least one element of group VIB and at least one element of group VIII on the surface of the solid produced by step c), and e) a step of sulfidisation of the solid produced in step d).

Hydroprocessing of hydrocarbon feeds with a catalyst comprising an aluminium material comprising carbon

A catalyst comprising gold and a porous support containing at least one refractory oxide, in which the gold content is in the range 0.01% to 5% by weight with respect to the total weight of catalyst, and in which the particles of gold are distributed homogeneously through said porous support and have a dimension, measured by transmission electron microscopy, in the range 0.5 to 5 nm.

Catalyst comprising gold homogeneously dispersed in a porous support

The invention concerns a method for converting a feedstock selected from sugars or sugar alcohols, alone or in a mixture, into mono- or polyoxygenated compounds, wherein the feedstock is contacted with at least one heterogeneous catalyst comprising a support selected from perovskites of formula ABO, in which A is selected from the elements Mg, Ca, Sr and Ba and B is selected from the elements Fe, Mn, Ti and Zr, and the oxides of elements selected from lanthanum, neodymium, yttrium and cerium, alone or in a mixture, which oxides can be doped with at least one element selected from alkali metals, alkaline earths and rare earths, in a reducing atmosphere, at a temperature of 100&#xb0; C. to 300&#xb0; C. and at a pressure of 0.1 MPa to 50 MPa.

Method for transforming sugars and sugar alcohols into mono- and poly-oxidized compounds in the presence of a heterogeneous catalyst

The invention concerns a process for the transformation of lignocellulosic biomass or cellulose into mono- or poly-oxygenated compounds, in which the lignocellulosic biomass or the cellulose is brought into simultaneous contact with a catalytic system comprising a combination of one or more homogeneous catalysts and one or more heterogeneous catalysts, in the same reaction chamber, in the presence of at least one solvent, said solvent being water alone or as a mixture with at least one other solvent, in a reducing atmosphere, and at a temperature in the range 80&#xb0; C. to 250&#xb0; C. and at a pressure in the range 0.5 MPa to 20 MPa.

Process for the transformation of lignocellulosic biomass into mono- or poly-oxygenated molecules

Disclosed are a catalyst, its preparation and use in selective hydrogenation, which catalyst has a porous support grain on which are deposited palladium and silver, and at least one alkali and/or alkaline earth metal; the porous support contains a refractory silica, alumina and/or silica-alumina oxide, where at least 80 wt. % of the palladium is distributed in a crust at the periphery of the support, and at least 80 wt. % of the silver is distributed in a crust at the periphery of the support, the local content of palladium at each point along the diameter of the grain follows the same course as the local content of silver.

Catalyst comprising palladium and silver, and its application for selective hydrogenation

A catalyst comprising gold, palladium, and a porous support, in the form of at least one grain, in which:

Catalyst comprising dispersed gold and palladium, and its use in selective hydrogenation

Process for transformation of a feedstock of lignocellulosic biomass and/or the carbohydrates, into mono-oxidized or poly-oxidized compounds, wherein the feedstock is contacted, simultaneously, with a catalytic system that comprises one or more homogeneous catalysts selected from Br&#xf8;nsted acids and heterogeneous catalysts comprising at least one metal selected from groups 6 to 11 and 14 of the periodic table, and a substrate selected from perovskites of formula ABO, in which A is Mg, Ca, Sr, Ba, and La, and B is selected from Fe, Mn, Ti and Zr, oxides of lanthanum, neodymium, yttrium, cerium, and niobium, or mixtures thereof, and mixed oxides of aluminates of zinc, copper, and cobalt, or mixtures thereof, in the same reaction chamber, with at least one solvent, being water or water with at least one other solvent, under reducing atmosphere, and temperature of 50&#xb0; C. to 300&#xb0; C., and pressure of 0.5 MPa to 20 MPa.

Process for transformation of a feedstock comprising a lignocellulosic biomass using an acidic homogeneous catalyst in combination with a heterogeneous catalyst comprising a specific substrate

The invention relates to a process for transformation of lignocellulosic biomass or cellulose using in a simultaneous manner an original combination of at least two homogeneous catalysts and one or more heterogeneous catalyst(s). The use of these catalysts makes it possible to obtain mono-oxidized or poly-oxidized upgradable products directly and to limit the formation of non-upgradable products. Non-upgradable products are defined as soluble and non-soluble humins, i.e., products of high molecular weight obtained from undesirable condensation reactions of sugars and their derivatives.

Method for the conversion of lignocellulosic biomasses into mono-oxygenated or poly-oxygenated molecules

The invention relates to a process for transformation of lignocellulosic biomass or cellulose using stable non-zeolitic heterogeneous catalysts that are based on tin and/or antimony, preferably dispersed on a substrate. The use of these catalysts makes it possible to obtain directly lactic acid with high selectivity while limiting the production of oligosaccharides and soluble polymers.

Process for converting cellulose or lignocellulosic biomass using stable non-zeolite solid Lewis acids based on tin or antimony alone or as a mixture

The invention relates to a process for transformation of lignoceliulosic biomass or cellulose that uses tungsten-oxide-based heterogeneous catalysts that are dispersed on an oxide-based substrate, preferably with a base of oxide(s) of aluminum and/or zirconium and/or titanium and/or niobium and containing an element in the particular metallic state. The use of these catalysts makes it possible to obtain directly upgradable products containing three carbon atoms, in particular hydroxyacetone and propylene glycol with high selectivity.

Process for transformation of lignocellulosic biomass or cellulose by tungsten-oxide-based solid lewis acid catalysts and a metal that is selected from groups 8 to 11

The invention relates to a process for transformation of lignocellulosic biomass or cellulose using heterogeneous catalysts that are based on tin oxide and/or antimony oxide, dispersed on a substrate and containing at least one element in the particular metal state. The use of these catalysts makes it possible to obtain directly upgradable products, in particular hydroxyacetone and propylene glycol with high selectivity.

Process for transformation of lignocellulosic biomass or cellulose by catalysts based on tin oxide and/or antimony oxide and a metal that is selected from the groups 8 to 11

A catalyst that comprises at least one binder and at least one crystallized material with hierarchized and organized porosity in the fields of microporosity and mesoporosity is described, whereby said crystallized material consists of at least two elementary spherical particles, each of said particles comprising a mesostructured silicon-oxide-based matrix that has a mesopore diameter of between 1.5 and 30 nm and that has microporous and crystallized walls with a thickness of between 1 and 60 nm, whereby said elementary spherical particles have a maximum diameter of 200 microns. Said catalyst is used in a process for oligomerization of an olefinic feedstock that contains hydrocarbon molecules that have 2 to 12 carbon atoms per molecule.

Catalyst based on a crystallized material with hierarchized and organized porosity and its use in oligomerization of light olefins

A catalyst is described which comprises at least one IZM-2 zeolite and at least one matrix, said zeolite having a chemical composition expressed as the anhydrous base in terms of moles of oxides by the following general formula: XO: aYO: bMO, in which X represents at least one tetravalent element, Y represents at least one trivalent element and M is at least one alkali metal and/or alkaline-earth metal, a and b respectively representing the number of moles of YOand MO; and a is in the range 0.001 to 0.5, b is in the range 0 to 1 and n is in the range 1 to 2. Said catalyst is used in various processes for the transformation of hydrocarbon feeds.

Catalyst comprising at least one IZM-2 zeolite, and its use in the transformation of hydrocarbon feeds

A catalyst is described which comprises at least one IZM-2 zeolite, at least one matrix and at least one metal selected from metals from groups VIII, VIB and VIIB, said zeolite having a chemical composition expressed as the anhydrous base in terms of moles of oxides by the following general formula: XO:aYO:bMO, in which X represents at least one tetravalent element, Y represents at least one trivalent element and M is at least one alkali metal and/or alkaline-earth metal with valency n, a and b respectively representing the number of moles of YOand MO; and a is in the range 0.001 to 0.5 and b is in the range 0 to 1.

Catalyst comprising an izm-2 zeolite and at least one metal, and its use in the transformation of hydrocarbons

The invention relates to a process for transformation of lignocellulosic biomass or cellulose that uses tungsten-based heterogeneous catalysts that are dispersed on an oxide-based substrate, preferably with a base of oxide(s) of aluminum and/or zirconium and/or titanium and/or niobium. The use of these catalysts makes it possible to obtain directly lactic acid with high selectivity while limiting the production of oligosaccharides and soluble polymers.

Growing community of inventors

Givors, France

Amandine Cabiac