Conception of a New System for Pollution Abatement for Small Scale Wood Appliance

Abstract

Increase the part of renewable energy in the primary energy consumption is an interesting resolution to lower CO2 emissions of human activities. Utilization of wood for combustion represents an important contribution for this objective: in France the potential of 9,5MTep for energy is growing with the expansion of forest on the territory. To improve the environmental impact of wood combustion, some advance need to be achieved in term of undesirable emissions of carbon monoxide (CO), volatile organic compounds (VOC), polycyclic aromatic compounds (PAC), and particles. Emissions measurement on an old technology wood stove confirms no negligible emissions rates for CO, VOC and particles. The goal of this project is to create a new technology efficient for both gaseous and solid emissions abatement. This technology will also have to be affordable, compact and self generated to be of interest for consumers. Catalysis science can help to treat gaseous emissions. Some tests on catalyst with high redox properties showed promising results for CO and methane CH4 total oxidation. Experiences on a very simple filtration technique indicate 50% abatement for particles smaller than 2.5µm (PM2.5). Regeneration and optimization of these different techniques are ongoing.