Short description
(German)
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Vergasungsversuche, Holz, Altholz, chikenliter, Kafesatz
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Final report
(English)
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Through several R&D projects, the Xylowatt team has demonstrated the technical feasibility of the combined heat power production by wood gasification. An industrial plant of 60 kWe is presently installed in a large sawmill in Bulle (CH).The aim of this project was to test and evaluate other biomass than clean wood into a small gasifier with a biomass consumption of about 1 kg/h of biomass. The system composed by a reactor and a gas treatment system was developed at the Indian Institute of Science (IISc) in Bangalore (India) and adapted by Xylowatt for the test program. The tests were carried out within the scope of a project sponsored by the Swiss Federal Office of Energy (OFEN).The program test was constituted by seven test of the following biomass (or biofuel):test 1 - native wood chips, test 2 - urban waste wood, test 3 - pecan nuts shells,test 4 - crushed oak briquettes,test 5 - wood pellets,test 6 - coffee hull pellets,test 7 - chicken litter pellets.The tests were done in the workshop of Xylowatt at Châtel-St-Denis in two periods during June and September 2001. The fist period was composed by the native wood ships (1), wood pellet (5) and urban waste wood (2) done respectively in June 24th, 25th and 26th. The second period was composed by the coffee hull pellets (6), crushed oak briquettes (4), pecan nuts shells (3) and chiken litter pellets done respectively in September 3rd, 4th, 5th and 6th. Xylowatt SA has mandated Verenum in Zurich to carry out measurements of particles, tar and some inorganic species present in the raw and clean producer gas of the small open-top downdraft gasifier. For each of the 7 biofuels, measurements for tar and particles were made both in the raw gas and in the clean gas after the gas cleaning system. Beside particles and tar, some inorganic species were measured using both gas phase adsorption (Dräger tubes) and conventional wet chemical absorption methods (impingement in acqeous solutions).
Auftragnehmer/Contractant/Contraente/Contractor:
Xylowatt SA
Autorschaft/Auteurs/Autori/Authors:
Hasler,Philipp
Giordano,Pasquale
Dasappa,S.
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