Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Anellotech, Inc.

Alexandre Pagot

Jean-Marc Zaccardi

Laurent Duval

Joana Fernandes

Benoist Thirouard

Frederic Bazer-Bachi

Abdelhakim Koudil

Eric Lemaire

Fabrice Deleau

Bertrand Fanget

Dominique Auclair

Romain Corroyer

Celine Bertino-Ghera

Vincent Coupard

Denis Uzio

Eric Sanchez

Jean-Francois Joly

Anne-Claire Dubreuil

Gérard Papon

Stéphane Venturi

Fabian Lambert

Gaetan Monnier

Romina Digne

Heloise Dreux

Pierre-Yves Martin

Pierre-Yves Le Goff

Charles Mitchel Sorensen

Julien Gornay

Bertrand Lecointe

Gaétan Monnier

Frédéric Jean-Michel Feugnet

Christophe Pierre

Cristina Ruiz Martinez

Marc François Philippe Jacquin

Eric Watel

Vanessa Vincent-Genod

Francois Sala

Joana Fernandez

The present invention relates to a device and a process for converting aromatic compounds, wherein: methyl-substituted aromatic compounds are extracted from a hydrocarbon feedstock () comprising aromatic compounds having at least 8 carbon atoms in an extraction unit (), to produce at least one effluent enriched in methyl-substituted aromatic compounds (A,B) and an effluent depleted in methyl-substituted aromatic compounds (); and C2+ alkyl chains of the aromatic compounds of the depleted effluent () are converted into methyl groups in a hydrogenolysis unit () placed downstream of the extraction unit (), to produce a hydrogenolysis effluent enriched in methyl-substituted aromatic compounds ().

Coupling of unit for extracting methyl-substituted aromatics with unit for hydrogenolysing alkyl-aromatics

The invention relates to a process for the production of C6-C7 aromatic compounds from a hydrocarbon feedstock of naphtha type comprising a step of fractionating () the feedstock in order to obtain an upper stream and a lower stream, a step of catalytic reforming of the upper stream () and of the lower stream (), a step of recombining () the reformate effluents obtained, a step of recontacting () and a step of stabilizing () the stabilized reformate effluents and a step of separating () the raffinate in order to recover C6 and C7 hydrocarbon compounds.

Process for improving the production of benzene and toluene

A process comprising separating from a biomass catalytic pyrolysis process effluent, a naphthalene-rich oil phase, a phenolic oil and a vapor phase containing off gas, water and BTX, whereby said vapor phase can be condensed to separate liquid water and liquid hydrocarbons from gaseous off gas and BTX.

Efficient recovery of valuable components from biomass catalytic pyrolysis effluent

The invention relates to a selective hydrogenolysis method for treating a feed rich in aromatic compounds having more than 8 carbon atoms, comprising transforming at least one alkyl group with at least two carbon atoms (ethyl, propyl, butyl, isopropyl, etc.) attached to a benzene ring into at least one methyl group. The invention also relates to the integration of the hydrogenolysis unit into an aromatic complex.

Method of hydrogenolysis for improved production of paraxylene

Process for the production of C6-C7 aromatic compounds from a hydrocarbon feedstock of naphtha type comprising the following stages:

Process for the production of aromatics with extraction before aromatization

The present invention describes a type of inclined bed reactor which permits a small quantity of catalyst to be employed. Application of the reactor to a regenerative reforming process.

Inclined bed reactor permitting a small quantity of catalyst to be employed

The present invention describes a type of radial bed reactor which can allow a small quantity of catalyst to be used. Application to a regenerative reforming process reactor.

Radial bed reactor allowing the use of a small quantity of catalyst

The present invention concerns a process for the treatment of a hydrocarbon feed containing hydrogen and hydrocarbons including Cto Chydrocarbons, employing a first and a second recontacting step and in which the gaseous effluent obtained from the second recontacting step is recycled to the first recontacting step. The process is of particular application to the treatment of a hydrocarbon feed obtained from catalytic reforming with a view to recovering hydrogen and Cand Chydrocarbons.

Process for the treatment of a hydrocarbon feed comprising hydrogen and C1 to C4 hydrocarbons

The present invention concerns a process for the production of light olefins and BTX using a catalytic cracking unit, NCC, processing a naphtha type feed, and an aromatics complex. It can be used to exploit the synergies between these two units. The thermal balance of the NCC, which is intrinsically deficient in coke, is resolved by the optimal use of heat from the reforming furnaces in order to preheat the feed for the NCC, and by introducing at least a portion of the raffinate obtained from the aromatics complex as a mixture with the naphtha.

Process for the production of light olefins and BTX using a catalytic cracking unit, NCC, processing a naphtha type feed, a catalytic reforming unit and an aromatics complex

The invention relates to a process for catalytic reforming of a naphtha hydrocarbon feedstock using a number of reaction zones in series, wherein the reaction zones contain a reforming catalyst bed. The process comprises comprising the following stages:

Reforming process with optimized distribution of the catalyst

The present invention relates to the FCC units processing heavy feedstocks enriched with hydrogen, such as for example a highly hydrotreated VGO, or the unconverted part at the end of hydrocracking this same type of VGO feedstock, feedstocks which have the characteristic of cracking to light olefins such as ethylene and propylene. The integration of an FCC with an aromatic complex allows the recovery by the aromatic complex of the BTX formed in the FCC, and the recovery by the FCC from the flow at the bottom of the column, of heavy aromatics from the aromatic complex.

Process for production of light olefins and BTX using an FCC unit processing a heavy feedstock of the highly hydrotreated VGO type, coupled with a catalytic reforming unit and an aromatic complex processing a naphtha-type feedstock

The present invention concerns a radial bed reactor comprising a vessel provided with a reaction zone with a moving catalyst bed. The reactor further comprises, inside the reaction zone:

Multi-tube radial bed reactor

A method for detection of abnormal combustion for internal combustion engines is disclosed. A physical model is chosen that describes, as a function of the angle &#x3b1; of rotation of the engine crankshaft, the development of pressure in the cylinder during combustion without any pre-ignition phenomenon. The cylinder pressure P(&#x3b1;) is estimated using this model and the intake pressure is measured. The beginning of abnormal combustion is detected by comparing a first value of a variable calculated using the measurement of the cylinder pressure, to a second value of the variable calculated using the estimation of the cylinder pressure. The amplitude of the pre-ignition is determined by repeating these steps for a defined number of crankshaft angles. Then the progress of the abnormal combustion detected in the combustion chamber is controlled as a function of the amplitude of the pre-ignition phenomenon.

Method for detection of abnormal combustion for internal combustion engines

An abnormal combustion detection method for spark-ignition internal-combustion engines, from combustion indicator distribution modelling is disclosed. At least one combustion indicator such as CA10 is determined. The distribution of N values of this indicator, acquired over N cycles preceding the cycle in progress, is modelled by determining coefficients of a theoretical distribution law. Modelling is repeated by removing extreme values from among the N values or for various working points of the engine, to obtain an evolution of the coefficients. At least one parameter characterizing evolution of at least one of these coefficients is determined. The start of an abnormal combustion is detected by comparing the parameter with a predetermined threshold, and the course of the abnormal combustion detected in the combustion chamber is controlled.

Abnormal combustion detection method for internal-combustion engines from combustion indicator distribution modelling

The present invention relates to a two-stage supercharging system for an internal-combustion engine () comprising at least one cylinder () with an intake distributor () and an exhaust manifold (), as well as a recirculation line () for recycling the exhaust gas to the intake of said engine, said system comprising a high-pressure supercharging stage () with a turbocharger including an expansion turbine () connected to a compressor () and a low-pressure supercharging stage () with a turbocharger including an expansion turbine () connected to a compressor (), and exhaust gas purification means arranged between exhaust outlet () and turbine () of the high-pressure turbocharger. According to the invention, the system comprises an exhaust gas bypass branch () going from outlet () of the engine exhaust and ending at turbine () of low-pressure turbocharger ().

Growing community of inventors

Rueil Malmaison, France

Alexandre Pagot