Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Commissariat a L'energie Atomique

Institute Francais Du Petrole

Nicolas Boudet

Eric Lenglet

Fabrice Giroudiere

Frédéric Hoffmann

Dominique Casanave

Alexandre Rojey

Olivier Ducreux

Eric Lemaire

Elsa Jolimaitre

Matthieu Rolland

David Chiche

Reynald Bonneau

Jean Christophe Viguie

Helene Rodeschini

Marc-Antoine Lelias

Jean-Marie Seiler

Marc Antoine Lelias

Mathieu Rolland

Frédéric Hoffman

Sylvie Rouge

Eric Lemarie

Hélène Rodeschini

Jean-Christophe Viguie

Jean-Marie Seller

Fabrice Giroudière

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

The process of the invention describes a set of steps for preparing a solid lignocellulosic biomass type feed, alone or mixed with a liquid hydrocarbon phase with a view to supplying a unit for gasification of said feed. The various steps include drying, torrefaction, milling and constituting a suspension of particles of biomass in a hydrocarbon cut.

Process for preparing a feed containing biomass intended for subsequent gasification

Process for the production of high-purity hydrogen from an ethanol or higher-alcohol feedstock, employing a steam reforming unit, a carbon monoxide conversion unit and a membrane separation unit and comprising intense thermal integration that is obtained by combustion under the control of an effluent of the process so as to provide the calories that are necessary to the steam reforming reaction.

Process for the production of hydrogen with very high purity from alcohols that comprise at least two carbon atoms

The process that is the object of the invention describes a process whose purpose is to produce a purified synthesis gas from lignocellulosic biomass that includes a pyrolysis stage, a purification stage placed upstream from the partial oxidation stage, and a cooling stage.

Method for producing a purified synthesis gas from a biomass including a purification step upstream from the partial oxidation

The invention relates to a process for co-generating electricity and hydrogen that comprises a stage a for steam reforming in the presence of water and oxygen of a hydrocarbon feedstock in which the O/C molar ratio is to be between 0.003 and 0.2, and the HO/C molar ratio is to be between 2 and 5, followed by a stage b for the production of electricity in a fuel cell that uses the hydrogen-rich gas that is obtained from stage a as a power source.

Process for generating electricity and hydrogen that comprises a hybrid reformer

This invention describes a new hydrogen purification process that employs a combination of at least three membrane separation units. This process allows non-stationary operations and is particularly suitable for the production of hydrogen for the purpose of its use in a fuel cell.

Hydrogen purification process that uses a combination of membrane separation units

Process for the production of liquid hydrocarbons from a feedstock that comprises at least one elementary feedstock from the group of biomass, coal, lignite, petroleum residues, methane, and natural gas, comprising: at least one stage a) for gasification of the feedstock by partial oxidation and/or steam reforming to produce a synthesis gas SG; a stage b) for separating CO2 from SG and a portion of the effluent of the subsequent stage c); the mixing of a portion of the CO2 that is separated with a gas of an H2/CO ratio of more than 3; a stage c) for partial conversion with hydrogen, thermal or thermocatalytic, of the CO2 that is present in said first mixture according to the reaction: CO2+H2&#x2192;CO+H2O in a specific reaction zone that is separated from said gasification zone or zones; a stage d) for Fisher-Tropsch synthesis on a synthesis gas that comprises at least a portion of SG and at least a portion of the CO that is produced by the conversion of CO2 into hydrogen.

Process for the production of synthesis gas with conversion of CO2 into hydrogen

Described are a reactor for carrying out a chemical conversion process in a catalytic bed with mechanism for supplying heat integrated into the reactor, and with a very compact reaction zone, combined with efficient use of the catalyst, and a process for converting a feed, such as a hydrocarbon feed, undergoing an endothermic reaction using the disclosed reactor.

Reactor for chemical conversion of a feed with added heat, and crosswise flow of feed and catalyst

A reactor with integrated heat for carrying out a chemical conversion process in the presence of a gaseous diluent supplied through one or more ports at the upper and/or lower ends of a catalytic bed through which a feed moves substantially horizontally, and a process for converting a feed, such as a hydrocarbon feed in the reactor.

Reactor for chemical conversion of a feedstock in the presence of a diluent, with heat inputs and feedstock/catalyst cross-circulation

The invention concerns a process for converting hydrocarbons using at least one globally endothermic chemical reaction, in which a hydrocarbon feed successively traverses at least two reaction zones each containing at least one solid catalyst and comprising between said reaction zones an intermediate step, in a non catalytic zone, for reheating the stream (ST) from the first of the two reaction zones prior to its introduction into said second reaction zone, and in which said reheating is carried out in a heat exchanger, with heat transfer essentially by convection using a thermal fluid TF with a coking sensitivity index CS that is less than that of the stream ST, the difference in temperature &#x394;T between the temperature of the fluid TF at the inlet to the exchanger and the temperature of the stream ST at the heat exchanger outlet being less than 250&#xb0; C. The invention also concerns the use of said process for converting hydrocarbons and a unit for carrying out the process.

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Chaponost, France

Nicolas Boudet