Institut Francais Du Pe'trole

Ifp Energies Nouvelles

Loic Rouleau

Sylvie Lacombe

Jean-Louis Paillaud

Eric Benazzi

Emmanuelle Guillon

Nicolas Bats

Philippe Caullet

Joël Patarin

Simone Goergen

John Leonello Casci

Fabio Alario

Jean-Louis Guth

Christophe Bouchy

Florent Guillou

Julia Magne-Drisch

Elisabeth Merlen

Laurent Simon

Delphine Bazer-Bachi

Joel Patarin

Franck Dumeignil

Bogdan Harbuzaru

Fr&eacute;d&eacute;ric Kolenda

Eric Lecolier

Pascal Blanchard

Edmond Payen

Nicolas Bais

Valentin Valtchev

Christine Lancelot

Sheena Maberly

Roland Patrick Henney

Stefania Cassiano Gaspar

Jerome Chevalier

Yves Jorand

Sébastien Royer

Frederic Kolenda

Virginie Harlé

Younès Bouizi

Frédéric Kolenda

A material is described in the form of a millimetric article constituted by coarse alumina particles with a median diameter in the range 10 to 200 &#x3bc;m, said coarse particles being at a distance, from one interface to another, of less than 10 &#x3bc;m, fine alumina particles with a median diameter in the range 0.5 to 10 &#x3bc;m, said fine particles being at a distance, from one interface to another, of less than 5 &#x3bc;m and being located in the space between the coarse particles, and a binder constituted by aluminium phosphate, said binder being located in the space between said fine and coarse particles, said material having a mesoporous volume, measured by mercury porosimetry, in the range 0.2 to 2 mL/g, a macroporous volume, measured by mercury porosimetry, in the range 0.05 to 0.2 mL/g and a BET specific surface area in the range 80 to 350 m/g.

Material based on alumina, with a multiscale structure, comprising an aluminium phosphate binder with good mechanical strength, and process for its preparation

A process for preparing a mesoporous alumina is described, comprising the following steps:

Process for preparing an alumina with controlled mesoporosity

The invention describes a porous composite material that comprises a porous substrate based on a refractory inorganic oxide in which said substrate has a zeolite crystal content that is less than 25% by mass, whereby said crystals are dispersed homogeneously in the pores of said substrate, and the distribution coefficient that is measured by Castaing microprobe is between 0.75 and 1.25, and in which the total pore volume of said substrate represents at least 40% of the initial total pore volume of the substrate, and the mean diameter of the pores represents at least 50% of the mean diameter of the pores of the initial substrate, its process for preparation and its use as catalyst in the hydrocarbon feedstock conversion reactions.

Zeolitic catalysts, their process for preparation and their applications

An EUO-structural-type zeolite that comprises at least one element X that is selected from among silicon and germanium and at least one element T that is selected from among aluminum, iron, gallium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese is described. It contains at least one alkyl quinuclidinium cation in its intracrystalline pores and has an N/X atomic ratio of more than 0.065, whereby N represents the nitrogen element. This invention also relates to a process for preparation of said zeolite and the use of the latter as an acidic solid in a process for conversion of hydrocarbon feedstocks.

EUO-structural-type zeolite containing the alkyl quinuclidinium structuring agent, process for preparation and use as catalyst

A preparation process is described for a porous composite material formed from an amorphous core based on at least one silicon oxide on which crystals of EU-1 zeolite are dispersed, said process comprising 1) the impregnation of a solid comprising a silicon oxide and an aluminum oxide with an aqueous solution comprising a hexamethonium cation, 2) the hydrothermal treatment, implemented in an autoclave of volume V (ml) under steam and at a temperature T comprised between 120 and 220&#xb0; C., of said solid from stage 1), the quantity of water introduced beforehand into said autoclave being strictly greater than a volumetric quantity equal to V*[23.48*10*T&#x2212;48*10*T+5*10*T&#x2212;0.002] and less than or equal to 0.25*V, and is such that said solid is not in direct contact with it, 3) the drying then calcination of the solid from stage 2). The preparation a catalyst from said material for its use in the isomerization of Caromatics is also described.

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The invention relates to a process for preparation of a zeolite that is selected from among the ZBM-30, ZSM-48, EU-2 and EU-11 zeolites, comprising the mixing in an aqueous medium of at least one source of at least one element X (Si and/or Ge) and at least one nitrogen-containing organic compound Q. Said nitrogen-containing organic compound Q is selected from among the compounds comprising at least one ether group and two terminal ammonium groups and their precursors.

Process for preparation of ZBM-30-type zeolites using a diammonium ether-type compound as an organic structuring agent

A new EUO-structural-type zeolite that comprises at least one tetravalent element X that is selected from among silicon, tin, titanium and germanium and optionally at least one trivalent element T that is selected from among aluminum, iron, boron, indium and gallium is described. This new zeolite is characterized in that it contains, in its crude synthesis form, the nitrogen-containing organic cation of formula N,N-dimethyl-N,N-di(3,3-dimethylbutyl)ammonium. A method for the preparation of this zeolite is also described.

EUO-structural-type zeolite that contains the N,N-dimethyl-N,N-di(3,3-dimethylbutyl)ammonium cation and its process for preparation

A zeolite crystalline solid, designated IM-9, having an X ray diffraction diagram according to FIG., has a chemical composition, expressed as the anhydrous base, in terms of moles of oxides, in accordance with the formula XO: mYO: pZO: qRO: sF, in which R represents one or more cation(s) with valency n, X represents one or more tetravalent element(s) other than germanium, Y represents germanium, Z represents at least one trivalent element and F is fluorine. The solid is useable, for example as an adsorbent or catalyst.

Solid crystalline IM-9, and a process for its preparation

The present invention concerns a process for preparing a zeolite with structure type EUO comprising at least one element X selected from silicon and germanium and at least one element T selected from iron, aluminium, gallium, boron, titanium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese, characterized in that seeds of at least one zeolitic material are used comprising at least one element X&prime; selected from silicon and germanium and at least one element T&prime; selected from iron, aluminium, gallium, boron, titanium, vanadium, zirconium, molybdenum, arsenic, antimony, chromium and manganese with a ratio X&prime;/T&prime; of less than 200, said seeds being different from the zeolite with structure type EUO being prepared. The present invention also concerns the use of the zeolite obtained as a catalyst in a process for converting hydrocarbon-containing feeds, as an adsorbent to control pollution and as a molecular sieve for separation, and more particularly as a catalyst in a process for isomerizing aromatic compounds containing 8 carbon atoms.

Process for preparing a zeolite with structure type EUO

The invention concerns IM-5 zeolite with a chemical composition with the following formula, expressed in terms of the mole ratios of the oxides for the anhydrous state: 100XO.sub.2,mY.sub.2 O.sub.3, pR.sub.2/n O where m is 10 or less; p is in the range 0 to 20; R represents one or more cations with valency n; X represents silicon and/or germanium; Y represents one or more of the following elements: aluminum, iron, gallium, boron and titanium. The zeolite is characterized by an Xray diffraction diagram, in its as synthesized state, which comprises the results shown in Table 1 of the description. The invention also concerns the preparation of the zeolite, any catalyst containing the zeolite and any catalytic process using such a catalyst.

IM-5 zeolite, a process for its preparation and catalytic applications

The invention concerns NU-88 zeolite, characterized by:

NU-88 zeolite, a process for its preparation and catalytic applications

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Charly, France

Loic Rouleau