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Dive into the research topics where Sophie Dorge is active.

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Featured researches published by Sophie Dorge.


Bioresource Technology | 2010

Thermogravimetric analysis and emission characteristics of two energy crops in air atmosphere: Arundo donax and Miscanthus giganthus

Mejdi Jeguirim; Sophie Dorge; Gwenaelle Trouvé

The aim of this work was to study the thermal behavior of two herbaceous crops (Miscanthus giganthus, Arundo donax) obtained from energy plantations. Thermogravimetric analyses were performed at 5 degrees C min(-1) under air atmosphere. The thermal degradation rates in devolatilization and combustion steps, the initial degradation temperature, and the residual weight were determined. The gas emissions and Particle Matter (PM) were also quantified. The thermal behavior of energy crops depends on the chemical composition. In fact, the initial degradation temperature for A. donax under air atmosphere was lower than for M. giganthus. However, the thermal degradation rate was higher for M. giganthus. Kinetic expressions for the degradation rate in devolatilization and combustion steps have been obtained for both energy crops. The comparison of the gas and PM emissions showed the same order of magnitude for both energy crops. In fact, 26.8 mmol/g of CO, CO(2), VOC and 1.8 x 10(13) particles/g were mainly emitted.


International Journal of Green Energy | 2010

Devolatilization kinetics of Miscanthus straw from thermogravimetric analysis.

Mejdi Jeguirim; Sophie Dorge; Angélique Loth; Gwenaelle Trouvé

The thermal degradation, reactivity, emission characteristics, and kinetics of Miscanthus straw under inert atmosphere were studied using thermogravimetric analysis (TGA) at different heating rates. The thermal decomposition of Miscanthus straw occurs within a temperature ranging between 180°C and 600°C. Miscanthus has the highest reactivity compared to different agriculture residues tested in the same sequence. Assuming the addition of three independent parallel reactions corresponding to three pseudocomponents linked to the hemicellulose, cellulose, and lignin, three-pseudocomponent models were used to simulate the Miscanthus straw devolatilization. The presented data may have a contribution in developing energy recovery systems using Miscanthus straw as a feedstock.


Bioresource Technology | 2013

Experimental investigation on gaseous emissions from the combustion of date palm residues in laboratory scale furnace

Yassine El may; Mejdi Jeguirim; Sophie Dorge; Gwenaelle Trouvé; Rachid Said

Emissions characteristics from the combustion of five date palm residues, DPR, (Date Palm Leaflets, Date Palm Rachis, Date Palm Trunk, Date Stones and fruitstalk prunings) in a laboratory scale furnace were investigated. Release of gaseous products such as CO2, CO, VOC, NOx and SO2 were measured at 600-800°C. The main goal was to analyze thermal behaviors and gaseous emissions in order to select the most convenient biofuel for an application in domestic boiler installations. Regards to biofuel characteristics, date stone have the highest energy density (11.4GJ/m(3)) and the lowest ash content (close to 1.2%). Combustion tests show that among the tested date palm residues, date stone may be the promising biofuel for the design of combustion processing system. However, a special attention to the design of the secondary air supply should be given to prevent high emissions of CO and volatile matters.


Energy | 2012

Study on the thermal behavior of different date palm residues: Characterization and devolatilization kinetics under inert and oxidative atmospheres

Yassine El may; Mejdi Jeguirim; Sophie Dorge; Gwenaelle Trouvé; Rachid Said


Waste and Biomass Valorization | 2011

Thermal degradation of Miscanthus pellets: kinetics and aerosols characterization

Sophie Dorge; Mejdi Jeguirim; Gwenaelle Trouvé


Comptes Rendus Chimie | 2015

Activated carbon prepared by physical activation of olive stones for the removal of NO2 at ambient temperature

Imen Ghouma; Mejdi Jeguirim; Sophie Dorge; Lionel Limousy; Camelia Matei Ghimbeu; Abdelmottaleb Ouederni


Fuel Processing Technology | 2016

Formation and role of Cu+ species on highly dispersed CuO/SBA-15 mesoporous materials for SOx removal: An XPS study

Pierrick Gaudin; Philippe Fioux; Sophie Dorge; Habiba Nouali; Matthieu Vierling; Emmanuel Fiani; Michel Molière; Jean-François Brilhac; Joël Patarin


Energy | 2014

Impregnation of olive mill wastewater on dry biomasses: Impact on chemical properties and combustion performances

Nesrine Kraiem; Mejdi Jeguirim; Lionel Limousy; Marzouk Lajili; Sophie Dorge; Laure Michelin; Rachid Said


Applied Catalysis B-environmental | 2016

CuO/SBA-15 materials synthesized by solid state grinding: Influence of CuO dispersion and multicycle operation on DeSOX performances

Pierrick Gaudin; Sophie Dorge; Habiba Nouali; Matthieu Vierling; Emmanuel Fiani; Michel Molière; Jean-François Brilhac; Joël Patarin


Applied Catalysis A-general | 2015

Synthesis of Cu-Ce/KIT-6 materials for SOx removal

Pierrick Gaudin; Sophie Dorge; Habiba Nouali; Damaris Kehrli; Laure Michelin; Ludovic Josien; Philippe Fioux; Loïc Vidal; Michel Soulard; Matthieu Vierling; Michel Molière; Jean-François Brilhac; Joël Patarin

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Mejdi Jeguirim

Centre national de la recherche scientifique

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Habiba Nouali

University of Strasbourg

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Joël Patarin

University of Strasbourg

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Pierrick Gaudin

Centre national de la recherche scientifique

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Laure Michelin

Centre national de la recherche scientifique

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Ludovic Josien

Centre national de la recherche scientifique

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Lucia Blas

Centre national de la recherche scientifique

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Patrick Dutournié

Centre national de la recherche scientifique

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