Systems-Level Analysis of Energy and Greenhouse Gas Emissions for Coproducing Biobased Fuels and Chemicals: Implications for Sustainability
| Autor: | George G. Zaimes, Steven P. Crossley, Daniel E. Resasco, Andrew W. Beck, Vikas Khanna, Anthony J. O’Brien |
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| Rok vydání: | 2018 |
| Předmět: |
Waste management
Renewable Energy Sustainability and the Environment business.industry 020209 energy General Chemical Engineering Fossil fuel 02 engineering and technology General Chemistry 010501 environmental sciences Biorefinery Torrefaction 01 natural sciences Renewable energy Biofuel Greenhouse gas Biochar 0202 electrical engineering electronic engineering information engineering Environmental Chemistry Environmental science business Life-cycle assessment 0105 earth and related environmental sciences |
| Zdroj: | ACS Sustainable Chemistry & Engineering. 6:5826-5834 |
| ISSN: | 2168-0485 |
| Popis: | In light of advances in the simultaneous production of biobased fuels and chemicals, a prospective well-to-wheel lifecycle assessment (LCA) model of a two-step multistage torrefaction biorefinery is constructed to quantify both lifecycle greenhouse gas (GHG) emissions and energy return on primary fossil energy investment (EROIfossil) for a transportation-range biofuel product. Coproducts—including cyclopentanone (CPO), biochar, and a potential net electricity export—are handled via six coproduct scenarios, evaluated across both market-based allocation and displacement methods. Process-scale performance metrics and product distributions are compared across cases to evaluate trade-offs between process and environmental performance; carbon flows are visualized to better explain patterns of carbon yield and waste. LCA results include median GHG values spanning from −30.8 to +36.1 g CO2e/MJ-fuel and median EROIfossil values ranging from 1.6 to 12.8 MJ-fuel/MJ-PEfossil. Sensitivity results for the Market CPO ca... |
| Databáze: | OpenAIRE |
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