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Influence of process parameters on the performance of an oxygen blown entrained flow biomass gasifier
RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Energy Technology Center. Luleå University of Technology, Sweden.ORCID-id: 0000-0003-2890-3546
RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Energy Technology Center. Luleå University of Technology, Sweden.ORCID-id: 0000-0002-9395-9928
RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Energy Technology Center.
RISE., SP – Sveriges Tekniska Forskningsinstitut, SP Energy Technology Center. RISE Research Institutes of Sweden, Bioekonomi och hälsa, Bioraffinaderi och energi.ORCID-id: 0009-0004-9996-8659
Vise andre og tillknytning
2015 (engelsk)Inngår i: Fuel, ISSN 0016-2361, E-ISSN 1873-7153, Vol. 153, s. 510-519Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Pressurized, O2 blown, entrained flow gasification of pulverized forest residues followed by methanol production is an interesting option for synthetic fuels that has been particularly investigated in the Nordic countries. In order to optimize gasification plant efficiency, it is important to understand the influence of different operating conditions. In this work, a pressurized O2 blown and entrained flow biomass gasification pilot plant was used to study the effect of four important process variables; (i) the O2 stoichiometric ratio (λ), (ii) the load of the gasifier, (iii) the gasifier pressure, and (iv) the fuel particle size. Commercially available stem wood fuels were used and the process was characterized with respect to the resulting process temperature, the syngas yield, the fuel conversion and the gasification process efficiency. It was found that CH4 constituted a significant fraction of the syngas heating value at process temperatures below 1400 °C. If the syngas is intended for catalytic upgrading to a synthetic motor fuel where CO and H2 are the only important syngas species, the process should be optimized aiming for a process temperature slightly above 1400 °C in order to reduce the energetic losses to CH4 and C6H6. This resulted in a cold gas efficiency (based only on CO and H2) of 70%. The H2/CO ratio was experimentally determined within the range 0.45-0.61. Thus, the syngas requires shifting in order to increase the syngas composition of H2 prior to fuel synthesis.

sted, utgiver, år, opplag, sider
Elsevier Ltd , 2015. Vol. 153, s. 510-519
Emneord [en]
Biomass, Cold gas efficiency, Entrained flow reactor, Gasification, Oxygen blown, Wood, Automotive fuels, Efficiency, Fuels, Methanol fuels, Oxygen, Particle size, Pilot plants, Synthesis gas, Synthetic fuels, Wood fuels, Biomass Gasification, Different operating conditions, Entrained flow gasification, Influence of process parameters, Oxygen-blown, Stoichiometric ratio, Chemical Reactors
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Identifikatorer
URN: urn:nbn:se:ri:diva-43893DOI: 10.1016/j.fuel.2015.03.041Scopus ID: 2-s2.0-84965130874OAI: oai:DiVA.org:ri-43893DiVA, id: diva2:1395326
Tilgjengelig fra: 2020-02-21 Laget: 2020-02-21 Sist oppdatert: 2024-05-17bibliografisk kontrollert

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