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Real-time in situ multi-parameter TDLAS sensing in the reactor core of an entrained-flow biomass gasifier
RISE - Research Institutes of Sweden, Bioekonomi, ETC Energy Technology Center.ORCID-id: 0000-0003-2253-6845
RISE - Research Institutes of Sweden, Bioekonomi, ETC Energy Technology Center.ORCID-id: 0000-0002-6473-7090
Umeå University, Sweden.
RISE - Research Institutes of Sweden, Bioekonomi, ETC Energy Technology Center.ORCID-id: 0000-0002-9395-9928
Vise andre og tillknytning
2017 (engelsk)Inngår i: Proceedings of the Combustion Institute, ISSN 1540-7489, E-ISSN 1873-2704, Vol. 36, nr 3, s. 4541-4548Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Tunable diode laser absorption spectroscopy (TDLAS) was employed to measure several important process parameters at two different locations inside the reactor of an atmospheric air-blown 0.1 MW biomass gasifier. Direct TDLAS at 2298 nm was employed for CO and water calibration-free scanned wavelength modulation spectroscopy at 1398 nm for H2O and gas temperature and direct TDLAS at 770 nm for gaseous elemental potassium K(g) under optically thick conditions which correspond the first in situ measurements of K(g) and temperature in a reactor core and in biomass gasification respectively. Actual average temperatures in the reactor core were significantly higher than the uncorrected thermocouple measurements in the gas stream. The CO concentrations at the lower optical access port were comparable to those obtained by GC at the exhaust. In gasification mode similar H2O values were obtained by the two different TDLAS instruments. The reaction time was faster for peat than for stem wood.

sted, utgiver, år, opplag, sider
2017. Vol. 36, nr 3, s. 4541-4548
Emneord [en]
Biomass gasification, Carbon monoxide, Gas temperature, Potassium, Tunable diode laser absorption spectroscopy, Absorption spectroscopy, Biomass, Gas chromatography, Molecular spectroscopy, Peat, Reactor cores, Semiconductor lasers, Soot, Thermocouples, Equilibrium calculation, Measurement campaign, Optical path lengths, Soot volume fraction, Thermocouple measurements, Gasification
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Identifikatorer
URN: urn:nbn:se:ri:diva-31081DOI: 10.1016/j.proci.2016.07.011Scopus ID: 2-s2.0-85002619768OAI: oai:DiVA.org:ri-31081DiVA, id: diva2:1137799
Merknad

 Funding details: Energimyndigheten; Funding details: Kempestiftelserna; Funding details: VR, Vetenskapsrådet; Funding text: The authors acknowledge financial support from the Swedish Research Council, the Swedish Energy Agency, the Kempe Foundations, the Swedish strategic research program Bio4Energy and the Swedish Center for Gasification.

Tilgjengelig fra: 2017-09-01 Laget: 2017-09-01 Sist oppdatert: 2020-01-29bibliografisk kontrollert

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Sepman, AlexeyÖgren, YngveWiinikka, Henrik

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