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Cellulosic ethanol is widely believed to offer substantial environmental advantages over petroleum fuels and grain‐based ethanol, particularly in reducing greenhouse gas emissions from transportation. The environmental impacts of biofuels are largely caused by precombustion activities, feedstock production and conversion facility operations. Life cycle analysis (LCA) is required to understand these...
Agricultural residues, particularly corn stover, are a promising feedstock for bioenergy systems. To analyze these systems in a life cycle framework, environmental impacts from cultivation and harvest must be allocated to the resulting products, corn grain and stover. This paper explores three approaches to allocation for corn and stover: economic and energy-based allocation, as well as a subdivision...
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