Journal
BIORESOURCE TECHNOLOGY
Volume 102, Issue 10, Pages 6167-6177Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.02.009
Keywords
Life cycle analysis (LCA); Wood pellets; British Columbia; District heating; Gasification
Funding
- Agriculture Canada
- UBC
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The replacement of natural gas combustion for district heating by wood waste and wood pellets gasification systems with or without emission control has been investigated by a streamlined LCA. While stack emissions from controlled gasification systems are lower than the applicable regulations, compared to the current base case, 12% and 133% increases are expected in the overall human health impacts for wood pellets and wood waste, respectively. With controlled gasification, external costs and GHG emission can be reduced by 35% and 82% on average, respectively. Between wood pellets and wood waste, wood pellets appear to be the better choice as it requires less primary energy and has a much lower impact on the local air quality. (C) 2011 Elsevier Ltd. All rights reserved.
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