From in situ to operando

SSCI-VIDE+ECI2D+CGEInternational audienceNon

From in situ to operando

SSCI-VIDE+ECI2D+CGEInternational audienceNon

Hydrogenation processes in the thermochemical routes for the production of 1G, 2G and 3G biofuels or chemicals

SSCI-VIDE+ECI2D:CGEInternational audienc

Nanotechnology and Catalysis : interlinked sciences

International @ RAFFINAGE+CGEInternational audienceNon

comprehensive two-dimensional gas chromatography applied to hydrotreating and hydroconversion products.

RMN+ECI2D+CLO:CGEInternational audienceAnalytical multidimensional gas chromatography (MDGC) and more recently comprehensive GC (GCxGC) provide a unique understanding of complex matrix such as fuels. The approach to GC×GC was introduced and pioneered by Phillips et al.[1] in the mid 90’s. Since that time, tremendous developments have been made in the development of modulators (cryogenic or micro-fluidic) and coupling with many types of detectors leading to a unique description of complex mixtures such as oil, fuels, fragrance, flavours, … In the field of petroleum industries, companies developed many applications and are now using GCxGC as a routine technique [2]. We will summarize selected applications of GCXGC linked to hydrotreatments or desulfurization processes as well as hydroconversion. After a brief introduction on the fundamentals of GXGC, we will illustrate here the benefit of this technique for kinetics and the characterization of light fuels (gas oil, gasoline …) during desulfurization (HDS of SRGO, co processing HDO/HDS, OATS) or cetane improvement by SRO

Polyaromatic compounds in heavy fractions characterized by capillary flow GCxGC FID

RMN+ECI2D+CLO:CGEInternational audienceComprehensive two-dimensional GC is a powerful technique that can be used to separate very complex mixtures such as those found in the hydrocarbon processing, perfums, . Petroleum industry is an important application area for GCxGC. It is now routinely applied in R&D refining groups for the characterization of ligh fuels (gasoline, gas oil). In addition, flow modulation offers a viable alternative to thermal modulation without the burdens imposed by cryogenic requirements for comprehensive GCxGC. If cryogenic trapping is the reference technique for volatile and semi volatile compounds, it may be a drawback for heavy molecules such as polycyclic aromatic hydrocarbons on long chains alkanes which are difficult to volatilize after cryo trapping. We have enlarged the field of application of GC X GC using the differential flow modulator (DFM) to work on heavier feddstocks. The first results obtained were first under normal GC conditions were in good agreement with data coming from a cryogenic system. The differential flow modulator was installed on a GC FID 7890A Agilent for High Temperature GC. Acquisition and treatment of the detector signal were performed with the Agilent Chemstation, the data were transferred to GC-Image software (ZOEX) for data processing. The calibration of the system with paraffinic compounds demonstrates that paraffins up to C60 can be analyzed. Thus DFM GCxGC- FID technique was applied to the characterization of atmospheric residues, converted atmospheric residues or coal liquids. The GCxGC technique allowed discriminating between saturated and aromatic compounds with well identified families from mono- up to pentaromatic compounds

Présentation du projet RafbioAlg

SSCI-VIDE+ECI2D+DLA:CGEInternational audienceLe projet RafbioAlg financé par l'ANR propose d'évaluer le développement d'une filière de production de biocarburants à partir de micro-algues. Les 5 partenaires du projet ont chacun un rôle bien défini: CEA Cadarache pour la production et sélection des micro-algues, le CEA Liten à Grenoble pour la conversion des micro-algues par HTL, l'IRCELYON pour la coordination du projet et la conversion catalytique des bio-huiles algales, le CORIA de Rouen pour l'étude de la combustion des biocarburants et le LBE INRA Narbonne pour une analyse de cycle de vie (LCA)