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3 results on '"Erns, A."'

1. Inherent process variations between fast pyrolysis technologies: A case study on Eucalyptus grandis

Author

R. Stahl, Jan-Erns Joubert, Nicolaus Dahmen, Marion Carrier, Johannes H. Knoetze, Carrier, Marion, Laboratoire d'Application de la Chimie à l'Environnement (LACE), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, [SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering, General Chemical Engineering, Condensation, Energy balance, Energy Engineering and Power Technology, Raw material, Pulp and paper industry, 7. Clean energy, 6. Clean water, Coolant, Fuel Technology, Scientific method, medicine, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Mineral oil, Chemical composition, Pyrolysis, ComputingMilieux_MISCELLANEOUS, medicine.drug
Abstract

Fast pyrolysis of Eucalyptus grandis was carried out using different reactor configurations and scale setups, a 0.1 kg/h bubbling fluidised bed (BFB) reactor, a 1 kg/h BFB reactor and a 10 kg/h twin-screw reactor. The influence of lignocellulosic composition, process configuration (reactor configuration, separation and condensation system) and their feed capacity on yields and quality of pyrolysis products was discussed. The increasing reactor scale study had constraints such as the availability of biomass feedstock with inherent changes in the chemical composition and the practicality of the condensation chain. Although the methods employed for phase separation and liquid collection differ from plant to plant limiting the repeatability of results, it was clearly identified that the implementation of efficient solid separation and use of mineral oil as the coolant system were crucial aspects of the mass production of organics. These results suggest that yields and quality of fast pyrolysis at a larger scale are all process-related rather than feedstock conditioned. A comparison of energy balances indicated that fast pyrolysis retained the same energy yield at scales of 1 and 10 kg/h.

Published
2015

2. Impact of the lignocellulosic material on fast pyrolysis yields and product quality

Author

Marion Carrier, Johannes H. Knoetze, Jan-Erns Joubert, Stephen Danje, Thomas Hugo, Johann F. Görgens, Laboratoire d'Application de la Chimie à l'Environnement (LACE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Carrier, Marion, Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon

Subjects
Hot Temperature, Environmental Engineering, [SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering, 020209 energy, Biomass, Bioengineering, 02 engineering and technology, Raw material, Lignin, Trees, chemistry.chemical_compound, Biochar, 0202 electrical engineering, electronic engineering, information engineering, Organic chemistry, [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering, Char, Cellulose, Waste Management and Disposal, Eucalyptus, Renewable Energy, Sustainability and the Environment, General Medicine, 021001 nanoscience & nanotechnology, Saccharum, chemistry, Chemical engineering, Biofuel, Biofuels, Charcoal, Thermogravimetry, 0210 nano-technology, Oils, Porosity, Pyrolysis, Biotechnology
Abstract

International audience; The paper describes the fast pyrolysis conversion of lignocellulosic materials inside a bubbling fluidizedbed. The impact of biopolymers distribution in the biomass feed, namely hemicelluloses, cellulose, andlignin, on the yields and properties of pyrolytic bio-oils and chars was investigated.Although it is not possible to deconvoluate chemical phenomena from transfer phenomena using bubblingfluidized bed reactors, the key role of hemicelluloses in biomass feedstocks was illustrated by (i) itsinfluence on the production of pyrolytic water, (ii) its impact on the production of organics, apparentlydue to its bonding relationship with the lignin and (iii) its ability to inhibit the development of charsporosity, while the cellulose appeared to be the precursor for the microporous character of the biochars.These results are of interest in the selection of suitable feedstocks aimed at producing bio-oil and char asfuels and soil amendment, respectively.

Published
2013

3. From Archaeomedes to Archaedyn

Author

NUNINGER , Laure, Tourneux , François-Pierre, Favory , François, Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), European laboratory for Modelling of Landscapes and Territories over the Long Term (LEA MODELTER), Centre National de la Recherche Scientifique (CNRS)-ZRC SAZU-Université de Franche-Comté (UFC), Maison des Sciences de l'Homme et de l'Environnement Claude Nicolas Ledoux (MSHE), Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Théoriser et modéliser pour aménager (UMR 6049) (ThéMA), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB), ArchaeDyn I (2005-2007): 'Spatial dynamic of se,lement pa,erns and natural resources: toward a long‑term integrated analysis from Prehistory to the Middle Ages' (Action Concertée Incitative - ACI Spaces and Territories of French Ministry of Research and New Technologies, contract ET28), coordination F. Favory and L. Nuninger., A. Posluschny, K. Lambers et I. Herzog, European Project, Favory, François, Archaeomedes I (1992–1994). CEU DG XII (Contract EV5V-0021), Archaeomedes II (1996–1999) CEU DG XII - VALID, Laboratoire Chrono-environnement ( LCE ), Université Bourgogne Franche-Comté ( UBFC ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), European laboratory for Modelling of Landscapes and Territories over the Long Term ( LEA MODELTER ), ZRC SAZU-Centre National de la Recherche Scientifique ( CNRS ), Maison des Sciences de l'Homme et de l'Environnement Claude Nicolas Ledoux ( MSHE ), Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), Théoriser et modéliser pour aménager ( ThéMA ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ) -Université de Franche-Comté ( UFC ), ZRC SAZU-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Maison des Sciences de l'Homme et de l'Environnement Claude Nicolas Ledoux (UAR 3124) (MSHE), Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB)-Université de Franche-Comté (UFC), Laboratoire Chrono-environnement (UMR 6249) (LCE), and Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC)

Subjects
[SHS.ARCHEO] Humanities and Social Sciences/Archaeology and Prehistory, spatial archaeology, Roman Antiquity, [SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory, [SHS.GEO] Humanities and Social Sciences/Geography, [SHS.GEO]Humanities and Social Sciences/Geography, GIS, territories, Europe, models, [ SHS.ARCHEO ] Humanities and Social Sciences/Archaeology and Prehistory, Archaedyn, Archaeomedes, France, Middle Ages, settlement system, ComputingMilieux_MISCELLANEOUS, Protohistory
Abstract

International audience

Published
2007

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