Ifp Energies Nouvelles

Axens

Frederic Feugnet

Jean-Francois Joly

Mai Phuong Do

Thierry Gauthier

Catherine Laroche

Francois Hugues

Annick Pucci

Patrick Briot

Hugues Dulot

Romina Digne

Heloise Dreux

Romain Roux

Nicolas Lopes Ferreira

Nicolas Lambert

Jean-Michel Besnault

Eric Lemaire

Isabelle Merdrignac

Jean-Francois Le Coz

Natacha Touchais

Slavik Kasztelan

Jan Verstraete

Damien Hudebine

Pierre-Antoine Bouillon

Joao Marques

Jerome Majcher

Matthieu Dreillard

François Hugues

Geoffrey Dubin

Thomas Bruneau

Isabelle Medrignac

Jean-François Lecoz

Digne Romina

Device and process for converting a feedstock of aromatic compounds, in which the feedstock is notably treated using a fractionation train (-), a xylenes separating unit () and an isomerization unit (), and in which a pyrolysis unit () treats a second hydrocarbon-based feedstock, produces a pyrolysis effluent feeding the feedstock, and produces a pyrolysis gas comprising CO, CO2 and H2; an RWGS reverse water gas shift reaction section () treats the pyrolysis gas and produces an RWGS gas enriched in CO and in water; a fermentation reaction section () treats the RWGS gas enriched in CO and in water and produces ethanol; and an aromatization reaction section () converts the ethanol into a mixture of aromatic and paraffinic compounds feeding the feedstock.

Production of aromatics by reverse water gas shift, fermentation and aromatization

Device and process for converting a feedstock of aromatic compounds, in which the feedstock is notably treated using a fractionation train (-), a xylenes separating unit () and an isomerization unit (), and in which a pyrolysis unit () treats a second hydrocarbon-based feedstock, produces a pyrolysis effluent feeding the feedstock, and produces a pyrolysis gas comprising CO, CO2 and H2; a WGS water gas shift reaction section () suitable for treating the pyrolysis gas and for producing a WGS gas enriched in CO2 and in hydrogen; a CO2 aromatization reaction section () suitable for: at least partly treating the WGS gas to produce a hydrocarbon effluent comprising aromatic compounds, and feeding the feedstock with the hydrocarbon effluent.

Production of aromatics by pyrolysis, water gas shift and aromatization of CO2

Device and process for the conversion of a feedstock of aromatic compounds, in which the feedstock is treated notably by means of a fractionation train (-), a xylene separation unit () and an isomerization unit (), and in which a pyrolysis unit () treats a second hydrocarbon feedstock, produces a pyrolysis effluent feeding the feedstock, and produces a pyrolysis gas comprising CO, COand H; a reverse water gas shift RWGS reaction section () treats the pyrolysis gas and produces an RWGS gas enriched in CO and in water; a fermentation reaction section () treats the RWGS gas enriched in CO and in water, to produce ethanol and recycle the ethanol to the inlet of the pyrolysis unit.

Production of aromatics by reverse water gas shift, fermentation and recycling to pyrolysis

The invention concerns a method for converting heavy hydrocarbon feedstocks of which at least 50% by weight boils at a temperature of at least 300&#xb0; C., and in particular vacuum residues. The feedstocks are subjected to a first step a) of deep hydroconversion, optionally followed by a step b) of separating a light fraction, and a heavy residual fraction is obtained from step b) of which at least 80% by weight has a boiling temperature of at least 250&#xb0; C. Said fraction from step b) or the effluent from step a) is then subjected to a second step c) of deep hydroconversion. The overall hourly space velocity for steps a) to c) is less than 0.1 h. The effluent from step c) is fractionated to separate a light fraction. The heavy fraction obtained, of which 80% by weight boils at a temperature of at least 300&#xb0; C., is sent to a deasphalting step e). The deasphalted fraction DAO is then preferably converted in a step f) chosen from ebullated bed hydroconversion, fluidised bed catalytic cracking and fixed bed hydrocracking.

Method for converting residues incorporating deep hydroconversion steps and a deasphalting step

Apparatus and process for converting aromatic compounds, comprising/using: a fractionating train (-) suitable for extracting at least one benzene-comprising fraction (), one toluene-comprising fraction () and one fraction () comprising xylenes and ethylbenzene from the feedstock (); a xylene separating unit () suitable for treating the fraction comprising xylenes and ethylbenzene and producing a para-xylene-comprising extract () and a raffinate () comprising ortho-xylene, meta-xylene and ethylbenzene; an isomerizing unit () for treating the raffinate and producing a para-xylene-enriched isomerizate (), which is sent to the fractionated train; and an alkylating reaction section () for treating at least part of the benzene-comprising fraction with an ethanol source () and producing an alkylation effluent () comprising ethylbenzene, which is sent to the isomerizing unit.

Apparatus and process for converting aromatic compounds by benzene alkylation with ethanol

A device and process for the conversion of aromatic compounds, includes/uses: a unit for the separation of the xylenes suitable for treating a cut comprising xylenes and ethylbenzene and producing an extract comprising para-xylene and a raffinate; an isomerization unit suitable for treating the raffinate and producing an isomerate enriched in para-xylene which is sent to a fractionation train; a pyrolysis unit suitable for treating biomass, producing a pyrolysis effluent feeding, at least partially, the feedstock, and producing a pyrolysis gas comprising CO and H; a Fischer-Tropsch synthesis reaction section suitable for treating, at least in part, the pyrolysis gas, producing a synthesis effluent sent, at least in part, to the pyrolysis unit.

Device and process for the production of aromatics from a biomass pyrolysis gas

Apparatus and process for converting aromatic compounds, comprising/using: a fractionating train (-) suitable for extracting at least one benzene-comprising fraction (), one toluene-comprising fraction () and one fraction () comprising xylenes and ethylbenzene from the feedstock (); a xylene separating unit () suitable for treating the fraction comprising xylenes and ethylbenzene and producing a para-xylene-comprising extract () and a raffinate () comprising ortho-xylene, meta-xylene and ethylbenzene; an isomerizing unit () for treating the raffinate and producing a para-xylene-enriched isomerizate (), which is sent to the fractionating train; and an alkylating reaction section () for treating at least part of the benzene-comprising fraction with an ethylene source () and producing an alkylation effluent () comprising ethylbenzene, which is sent to the isomerizing unit.

Apparatus and process for converting aromatic compounds by benzene alkylation with ethylene

A process is described for producing a BTX cut from biomass comprising at least one step of catalytic pyrolysis of said biomass in a fluidized-bed reactor in which a stream comprising at least one oxygenated compound selected from alcohols having 2 to 12 carbon atoms, alcohol acids having 2 to 12 carbon atoms, diols having 2 to 12 carbon atoms, carboxylic acids having 2 to 12 carbon atoms, ethers having 2 to 12 carbon atoms, aldehydes having 2 to 12 carbon atoms, esters having 2 to 12 carbon atoms and glycerol, alone or mixed, is fed into the catalytic pyrolysis reactor.

Process for producing BTX by catalytic pyrolysis from biomass with injection of oxygenated compounds

A process for producing BTX and alcohols from biomass, comprising at least a) catalytic pyrolysis of said biomass in a fluidized-bed reactor producing a gaseous pyrolysis effluent; b) separation of said gaseous pyrolysis effluent into at least one BTX fraction and a gaseous effluent comprising at least carbon monoxide and carbon dioxide, c) recycling at least part of said gaseous effluent comprising at least carbon monoxide and carbon dioxide into the reactor of said step a), d) purging said gaseous effluent recycled according to step c) to produce a purge effluent, e) sending at least part of said purge effluent from step d) into a fermentation step producing a liquid fermentation stream comprising at least one stream comprising at least one oxygenated compound chosen from alcohols, diols, acid alcohols, carboxylic acids, aldehydes, ketones and esters, alone or as a mixture.

Process for producing BTX by catalytic pyrolysis from biomass without recycling oxygenated compounds

A process is described for producing BTX and alcohols from biomass, by a) catalytic pyrolysis of the biomass in a fluidized-bed reactor producing a gaseous pyrolysis effluent; b) separation of said gaseous pyrolysis effluent into at least one BTX fraction and a gaseous effluent containing at least carbon monoxide and carbon dioxide, c) sending all of the gaseous effluent from separation b) into fermentation producing a liquid fermentation stream containing at least one stream containing at least one oxygenated compound chosen from alcohols, diols, acid alcohols, carboxylic acids, aldehydes, ketones and esters, d) separating the fermentation stream obtained on conclusion of c) into at least the stream containing at least one oxygenated compound, an aqueous fraction, and an unreacted gaseous effluent, e) recycling at least part of unreacted gaseous effluent into the catalytic pyrolysis a).

Process for producing BTX and alcohols by catalytic pyrolysis of biomass and fermentation of the gaseous pyrolysis effluent

The present invention describes a process for heating the reboiler of the propane/propylene separation column situated downstream of an FCC unit and fed with the Ccut from said FCC unit, a process consisting of heating the water in a hot water circuit by means of one or more process fluids originating from units placed upstream and/or downstream of the FCC unit and called hot fluids, one of these fluids being constituted by the overhead vapours from the fractionation column connected to the mild hydrocracking unit.

Process for heating the column for distillation of the C3 fraction from an FCC unit by means of a circuit of water heated by streams belonging to units placed upstream and/or downstream of the FCC unit

The present invention describes a process for the production of gasoline using a catalytic cracking unit, processing conventional heavy cuts in a wide Conradson carbon range from 0.1 to 0.8, said process comprising a preheating of the combustion air downstream of the air compressor by heat exchange with the combustion fumes originating from the regeneration section, said fumes being collected between the waste heat boiler and the economizer.

Catalytic cracking process allowing improved upcycling of the calories from the combustion fumes

A process for desulfurizing a cracked naphtha containing organic sulfur compounds: The process further includes providing heat to the distillation column by an intermediate reboiler powered with a heat source having a temperature lower than that one of the bottom reboiler.

Process for desulfurizing cracked naphtha

The present invention describes a process for the conversion of a heavy feed which can be used to improve the selectivity for middle distillate. The process employs a catalytic cracking unit followed by one or more units for the oligomerization of C2 to C9 olefins which can preferentially produce an additional cut termed the middle distillate. The light portion of the oligomerate produced which cannot be incorporated into the middle distillate cut is recycled to the FCC unit for cracking into light olefins which are returned to the oligomerization units as a supplement to the olefins of the feed in order to preferentially form heavy oligomerates which can be incorporated into the middle distillate cut.

Process for converting a heavy feed into middle distillate

Process for converting a heavy hydrocarbon feedstock with initial boiling point of at least 300&#xb0; C. comprising: a) hydroconverting at least part of said feedstock; b) separating the effluent from stage a) to obtain light and heavy liquid fractions; c) at least two stages of deasphalting in series at least part of the heavy liquid fraction originating from stage b), allowing to separate at least one fraction of asphalt, at least one fraction of heavy deasphalted oil (heavy DAO) and at least one fraction of light deasphalted oil (light DAO), at least one deasphalting stage being carried out using a mixture of at least one polar solvent and at least one apolar solvent, said deasphalting stages being under subcritical conditions of the mixture of solvents; d) recycling at least part of said heavy deasphalted oil cut from stage c) upstream of hydroconverting a) and/or of the inlet of separating b).

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Lyons, France

Frederic Feugnet