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ABATEMENT OF EMISSIONS FROM SMALL-SCALE COMBUSTION OF BIOFUELS

Objective



Biofuels are an attractive alternative to the fossil fuels for heat and energy production. The main reasons is that the net contribution of CO2 to the atmosphere is zero and that different biofuels are available as cheap rest products in many areas of Europe. The increase of short rotation forestry is also in the interest in the European view due to the use of agricultural area for energy production.

By tradition and due to the cost of transportation of the bulky fuels large amounts of biofuels are used in local small-scale heating appliances (c 200 kWth). Small-scale boilers and stoves have in general high emissions of hydrocarbons and carbon monoxide and is some cases also NOx. The aim of this project is to improve the efficiency and environmental acceptability of biomass combustion for heat production. The focus will be on reduction of gaseous emissions e.g. VOC, carbon monoxide and NOx, but also emissions of tar, polyaromatic hydrocarbons and particles will be reduced. Both innovative catalytic methods and the design and operation of the combustor will be studied within the project group.

Independent of method for reducing emissions, the start-up period and refuelling results in the highest concentrations of unburned gases. This is due to low temperature during these periods. Therefore special attention will be focused on how to solve the problems connected with this.

Within the project, reduction of emissions by catalytic cleaning and combustion optimisation will be compared and the possibility of combining the two methods evaluated. An exploitation plan for the stoves will also be accomplished.

Coordinator

TPS TERMISKA PROCESSER AB
Address
Studsvik
611 82 Nyköping
Sweden

Participants (5)

AABO AKADEMI UNIVERSITY
Finland
Address
Biskopsgatan, 8
20500 Aabo
CRE GROUP LTD.
United Kingdom
Address
Common Road
NG17 2NS Nottingham
ECOLE NATIONALE SUPERIEURE DE SYNTHESE PROCEDE ET INGENIERIE CHIMIQUES D'AIX-MARSEILLE
France
Address
Av. Esc. Normandie Niemen
13397 Marseille
KUNGLIGA TEKNISKA HÖGSKOLAN
Sweden
Address
Teknikringen, 42
100 44 Stockholm
TECHNISCHE UNIVERSITÄT GRAZ
Austria
Address
Inffeldgasse, 25
8010 Graz