| Title: | Mitigation of Secondary Organic Aerosol Formation from Log Wood Burning Emissions by Catalytic Removal of Aromatic Hydrocarbons |
| Author(s): | Pieber SM; Kambolis A; Ferri D; Bhattu D; Bruns EA; Elsener M; Krocher O; Prevot ASH; Baltensperger U; |
| Address: | "Paul Scherrer Institute , Laboratory of Atmospheric Chemistry , 5232 Villigen , Switzerland. Empa, Laboratory for Air Pollution and Environmental Technology , 8600 Duebendorf , Switzerland. Paul Scherrer Institute , Bioenergy and Catalysis Laboratory , 5232 Villigen , Switzerland. Ecole polytechnique federale de Lausanne (EPFL) , 1015 Lausanne , Switzerland" |
| ISSN/ISBN: | 1520-5851 (Electronic) 0013-936X (Linking) |
| Abstract: | "Log wood burning is a significant source of volatile organic compounds including aromatic hydrocarbons (ArHC). ArHC are harmful, are reactive in the ambient atmosphere, and are important secondary organic aerosol (SOA) precursors. Consequently, SOA represents a major fraction of the sub-micron organic aerosol pollution from log wood burning. ArHC reduction is thus critical in the mitigation of adverse health and environmental effects of log wood burning. In this study, two Pt-based catalytic converters were prepared and tested for the mitigation of real-world log wood burning emissions, including ArHC and SOA formation, as well as toxic carbon monoxide and methane, a greenhouse gas. Substantial removal of mono- and polycyclic ArHC and phenolic compounds was achieved with both catalysts operated at realistic chimney temperatures (50% conversion was achieved at 200 and 300 degrees C for non-methane hydrocarbons in our experiments for Pt/Al(2)O(3) and Pt/CeO(2)-Al(2)O(3,) respectively). The catalytically cleaned emissions exhibited a substantially reduced SOA formation already at temperatures as low as 185-310 degrees C. This reduces the sub-micron PM burden of log wood burning significantly. Thus, catalytic converters can effectively reduce primary and secondary log wood burning pollutants and, thereby, their adverse health impacts and environmental effects" |
| Keywords: | "Aerosols *Air Pollutants *Hydrocarbons, Aromatic Particulate Matter Wood;" |
| Notes: | "MedlinePieber, Simone M Kambolis, Anastasios Ferri, Davide Bhattu, Deepika Bruns, Emily A Elsener, Martin Krocher, Oliver Prevot, Andre S H Baltensperger, Urs eng Research Support, Non-U.S. Gov't 2018/10/24 Environ Sci Technol. 2018 Nov 20; 52(22):13381-13390. doi: 10.1021/acs.est.8b04124. Epub 2018 Nov 5" |
