Assessment of well-to-wheel energy use and greenhouse gas emissions of Fischer-Tropsch diesel.

Wang, M.

doi:10.2172/820529

Cited by 5 publications

(3 citation statements)

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“…In the case of Cerrado grassland conversion to cropland with a high soybean yield, life-cycle GHG emissions increased to 1.3 times those of conventional jet fuel; in the case of tropical rainforest conversion and a low soybean yield, life-cycle GHG emissions increased to 8 times those of conventional jet fuel (see Appendix B 6 In the scenario modeled by Searchinger et al (2008), the ethanol production level appears to be significantly higher than the legal mandate and expected trends in U.S. corn ethanol production. Though critics have pointed out that this scenario might not be entirely realistic (Wang, 2008), a sensitivity study (provided in the same paper) that assumed a much smaller increase in ethanol production of about 8 billion gallons above projected levels in 2016 showed a reduction in average GHG emissions from land-use changes of only about 2 percent (343 tonnes CO 2 e per hectare [ha]) compared to the original scenario (351 tonnes CO 2 e/ha). This shows that land-use-change emissions arising from ethanol production at the range examined in the paper (an 8-billion to 15-billion gallon increase) do not vary significantly with the scale of production.…”

Section: Well-to-wake Greenhouse-gas Emissionsmentioning

confidence: 99%

Near-Term Feasibility of Alternative Jet Fuels

2009

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density, high volatility, and high flash points, pose operational and safety issues that make them inappropriate for use in aircraft. Similarly, biodiesel and biokerosene, because they may break down during storage or operations and because of their high freezing temperatures, are also inappropriate for use in aviation.Regarding the benefits derived from producing and using alternative jet fuels, the study found that the economic benefits of producing alternative liquid fuels extend to all petroleum users. In particular, producing alternative liquid fuels yields benefits to commercial aviation, whether or not those fuels are used in aviation. Finally, moving to an ultralow-sulfur (ULS) specification for Jet A would reduce aviation's impact on air quality.From its findings, the research team recommends the following:Preface v manufacturers, and decisionmakers at the federal, regional, state, and local levels who are responsible for energy and environmental policy with respect to commercial aviation. This report draws on a 50-plus-year history of research and analysis performed by MIT and RAND on alternative fuel resources for aviation and the effects of fuel use on operations. Examples of this previous work include the following:

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Section: Well-to-wake Greenhouse-gas Emissionsmentioning

confidence: 99%

Near-Term Feasibility of Alternative Jet Fuels

2009

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“…The FFC accounting approach has been widely used in transportation energy analysis, where it is often referred to as "well-to-wheels" analysis (Wang 2002). Many of these applications use the Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) model developed at Argonne National Laboratories (Wang 1999;ANL 2011), which provides a comprehensive source of information on fuel cycles for vehicles.…”

Section: Introductionmentioning

confidence: 99%

“…Many of these applications use the Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) model developed at Argonne National Laboratories (Wang 1999;ANL 2011), which provides a comprehensive source of information on fuel cycles for vehicles. Life-cycle analysis (LCA) is similar to well-to-wheels analysis, with some important conceptual differences.…”

Section: Introductionmentioning

confidence: 99%