Ifp Energies Nouvelles

Total Research & Technology Feluy

Institut Francais Du Pe'trole

Eni S.p.a.

Total Refining & Technology Feluy

Ifb Energies Nouvelles

Sylvie Maury

Vincent Coupard

Nikolai Nesterenko

Delphine Bazer-Bachi

Jean-Pierre Dath

Delphine Minoux

Joseph Lopez

Nicolas Aribert

Colin Dupont

Thibault Heinz

Emmanuelle Guillon

Nicolas Cadran

Nadiya Danilina

Tom Vivien

Adrien Berliet

Walter Vermeiren

Alexandra Chaumonnot

Cindy Adam

Fabrice Diehl

Vincent Lecocq

Amandine Cabiac

Laurent Bournay

Lars Fischer

Philip De Smedt

Laure Brandhorst

Veronique Pugnet

Guillaume Duplan

Eszter Toth

Anne-Agathe Quoineaud

Bernadette Rebours

Isabelle Clemencon

Mohamed Bengrine

Frédéric Capuano

Karine Surla

Christele Legens

Brigitte Pigeat

Serge Drouet

Vincent Lecoq

A method for isomerising dehydration in the presence of a specific catalyst, to produce at least one alkene, carried out on a feedstock containing a non-linear primary monoalcohol, where the catalyst includes a zeolite having a series of 8MR channels and a binder having certain pore volume, which catalyst is multilobe-shaped and has characteristics including certain average mesopore volume Vm, and mesopores having a certain diameter, an average certain macropore volume VM, the macropores having a certain diameter, and certain average micropore volume V&#x3bc;, the micropores having a certain diameter, and the catalyst has a certain exposed geometric area.

Method for isomerising dehydration of a non-linear primary monoalcohol on a quadrilobed iron zeolite catalyst

Process for preparing a catalyst composition containing a modified crystalline aluminosilicate and a binder, wherein the catalyst composition comprises from 5 to 95% by weight of crystalline aluminosilicate as based on the total weight of the catalyst composition, the process being remarkable in that it comprises a step of steaming said crystalline aluminosilicate:

Catalyst composition comprising modified crystalline aluminosilicate for dehydration of alcohols

A process for the isomerizing dehydration of a feedstock including a primary monoalcohol, alone or as a mixture, of formula R&#x2014;CH&#x2014;OH, wherein R is a nonlinear alkyl radical of general formula CHwhere n is an integer between 3 and 20, the process taking place

Method for the isomerizing dehydration of a non-linear primary alcohol feedstock in the presence of water injection and a catalyst comprising a FER or MFS zeolite

Catalyst composition comprising modified crystalline aluminosilicate for dehydration

The invention relates to a process for dehydration of a mono-alcohol, or of a mixture of at least two mono-alcohols, having at least 2 carbon atoms and at most 7 carbon atoms into olefins having the same number of carbons, wherein the process uses a catalyst composition that comprises a modified crystalline aluminosilicate has an acidity between 350 and 500 &#x3bc;mol/g that comprises, and further wherein the catalyst composition is obtained by a process comprising the steps of providing a crystalline aluminosilicate having a Si/Al framework molar ratio greater than 10; and steaming said crystalline aluminosilicate, or said shaped and/or calcined crystalline aluminosilicate at a temperature ranging from 100&#xb0; C. to 380&#xb0; C.; and under a gas phase atmosphere, without liquid, containing from 5 wt % to 100 wt % of steam; at a pressure ranging from 2 to 200 bars; at a partial pressure of HO from 2 bars to 200 bars; and said steaming being performed during at least 30 min and up to 144 h.

Process for dehydration of mono-alcohol(s) using a modified crystalline aluminosilicate

The present invention relates to a catalyst composition comprising a modified crystalline aluminosilicate of the Framework Type FER having Si/Al framework molar/ratio greater than 20 characterized in that in said modified crystalline aluminosilicate the ratio between the strong acid sites and the weak acid sites, S/W, is lower than 1.0 and having the extra framework aluminum (EFAL) content lowered to less than 10 wt % preferably 5 wt % even more preferably less than 2 wt % measured by 27Al MAS NMR. The present invention further relates to a process for producing olefins from alcohols in presence of said catalyst composition.

Modified crystalline aluminosilicate for dehydration of alcohols

The present invention is a process for dehydrating an alcohol to prepare corresponding olefin(s), comprising:

Process for preparing olefins by dehydrating alcohols with less side effects comprising addition of organic acids

The invention has as its object a method for preparation of catalysts based on cobalt substrates, implementing a concatenation of stages for impregnation, drying and calcination under particular conditions. The invention also relates to the use of said catalysts in Fischer-Tropsch synthesis methods.

Method for preparing cobalt-based catalysts

The present invention relates to a catalyst composition comprising a modified crystalline aluminosilicate of the Framework Type FER having Si/Al framework molar ratio greater than 20 characterized in that in said modified crystalline aluminosilicate the ratio between the strong acid sites and the weak acid sites, S/W, is lower than 1.0 and having the extra framework aluminum (EFAL) content lowered to less than 10 wt % preferably 5 wt % even more preferably less than 2 wt % measured by 27 Al MAS NMR. The present invention further relates to a process for producing olefins from alcohols in presence of said catalyst composition.

The present invention is a process for dehydrating an alcohol to prepare a corresponding olefin, comprising: The component introduced at step (a) can be chosen from the group consisting of thiols, sulfides, disulfides.

Process for preparing olefins by dehydrating alcohols with less side effects comprising addition of sulfur containing compounds

Isomerizing dehydration of feedstock containing a primary alcohol substituted in position 2 by an alkyl group in which the feedstock is heated to the reaction temperature by indirect heat exchange then vaporization by mixing with a diluent effluent, the diluted and vaporized feedstock being dehydrated in at least one dehydration reactor operating in gas phase at an inlet temperature comprised between 250 and 375&#xb0; C., at a pressure comprised between 0.2 MPa and 1 MPa and at a WHSV comprised between 1 and 18 h, in the presence of a catalyst comprising a zeolite having at least one series of channels the opening of which is defined by a ring with 8 oxygen atoms (8MR) and a binder, the catalyst being coked beforehand in-situ or ex-situ, so as to produce a dehydration effluent, the latter being treated and separated into a diluent effluent, an alkenes effluent and a heavy hydrocarbons effluent.

Process for the isomerizing dehydration of a primary alcohol feedstock substituted in position 2 by an alkyl group on a catalyst comprising an iron-type zeolite

Production of a mixture of ethylene and propylene from a mixture containing ethanol and isopropanol and having a water content between 30 and 75 wt. % is obtained by a process comprising:

Method for dehydrating a mixture containing ethanol and isopropanol

The present invention relates to a process for the production of a mixture of ethylene and propylene from a mixture containing ethanol and n-propanol and having a water content comprised between 30 and 75% by weight with respect to the total weight of the mixture.

Method for dehydrating a mixture containing ethanol and n-propanol

Process for simultaneous dehydration and skeletal isomerization of a feedstock that comprises at least one Cmonoalcohol and that contains between 0.5 and 50% water, for the purpose of producing Calkenes, with said process operating at a temperature of between 250 and 550&#xb0; C., under a pressure of between 0.1 and 1 MPa, with an hourly volumetric flow rate of between 0.1 and 10 h, characterized in that it uses a catalyst that comprises at least one non-zeolitic aluminosilicate-type solid.

Method for dehydrating and isomerising alcohols using a non-zeolite aluminosilicate solid

A catalyst with a mixed zinc and aluminum oxide base having a spinel structure surstoichiometric in zinc, in which part of the Zn atoms are in the octahedral position, a process for preparation of the same and use of the same in a process for preparation of a compound of linear monocarboxylic acid alcohol esters with 6-26 carbon atoms from a vegetable or animal oil, neutral or acid, virgin or recycled, with monoalcohols of 1-18 carbon atoms allowing an ester that can be used as a motor fuel or a heating fuel and a pure glycerine to be obtained directly in one or more steps.

Heterogeneous catalyst of the zinc aluminate spinel type surstoichiometric in zinc and use thereof in a process for preparation of alcohol esters from triglycerides and alcohols

Growing community of inventors

Saint Maurice d'Argoire, France

Sylvie Maury