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Multiscale Reactor Network Simulation of an Entrained Flow Biomass Gasifier: Model Description and Validation
Luleå University of Technology, Sweden.
Luleå University of Technology, Sweden.
Luleå University of Technology, Sweden.ORCID-id: 0000-0003-1806-4187
Luleå University of Technology, Sweden.
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2017 (Engelska)Ingår i: Energy Technology, ISSN 2194-4288, Vol. 5, s. 1-12Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

This paper describes the development of a multiscale equivalent reactor network model for pressurized entrained flow biomass gasification to quantify the effect of operational parameters on the gasification process, including carbon conversion, cold gas efficiency, and syngas methane content. The model, implemented in the commercial software Aspen Plus, includes chemical kinetics as well as heat and mass transfer. Characteristic aspects of the model are the multiscale effect caused by the combination of transport phenomena at particle scale during heating, pyrolysis, and char burnout, as well as the effect of macroscopic gas flow, including gas recirculation. A validation using experimental data from a pilot-scale process shows that the model can provide accurate estimations of carbon conversion, concentrations of main syngas components, and cold gas efficiency over a wide range of oxygen-to-biomass ratios and reactor loads. The syngas methane content was most difficult to estimate accurately owing to the unavailability of accurate kinetic parameters for steam methane reforming.

Ort, förlag, år, upplaga, sidor
2017. Vol. 5, s. 1-12
Nyckelord [en]
Aspen Plus, Biomass, Entrained flow gasification, Equivalent reactor network modeling, Kinetics, Computer software, Efficiency, Enzyme kinetics, Flow of gases, Mass transfer, Methanation, Methane, Reforming reactions, Steam reforming, Synthesis gas, Biomass Gasification, Cold gas efficiency, Gasification process, Heat and mass transfer, Operational parameters, Reactor network, Gasification
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URN: urn:nbn:se:ri:diva-29204DOI: 10.1002/ente.201600760Scopus ID: 2-s2.0-85015226098OAI: oai:DiVA.org:ri-29204DiVA, id: diva2:1086481
Tillgänglig från: 2017-04-03 Skapad: 2017-04-03 Senast uppdaterad: 2019-06-27Bibliografiskt granskad

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Furusjö, ErikWeiland, Fredrik

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