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Understanding the variability of GHG life cycle studies of oil sands production

Green Car Congress

Full-fuel-cycle GHG emissions estimates for reformulated gasoline pathways by LCA study. Nominal value of 70 g CO 2 /MJ for combustion emissions is applied evenly across all studies. He found that the variation in oil sands GHG estimates is due to a variety of causes. Credit: ACS, Brandt 2012. Click to enlarge.

Oil-Sands 225
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Argonne study finds shale gas GHG lifecycle emissions 6% lower than natural gas, 23% lower than gasoline and 33% lower than coal; upstream methane leakage a key contributor

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Gasoline section shows results for fuel derived from both conventional oil and oil sands. The study found that shale gas (SG) well completion and workover emissions are a much more significant factor as compared to a conventional natural gas (NG) pathway. Expansion bars show the components of fuel production.

Gas 284
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New petroleum refining lifecycle model finds the variability in GHG emissions from refining different crudes as significant as magnitude expected in upstream operations

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Comparison of GHGenius, JACOBS, TIAX, and the new PRELIM gasoline greenhouse gas (GHG) estimates using base case estimates and variations from the scenario analysis. A paper on PRELIM and the scenario study is published in the ACS journal Environmental Science & Technology. Credit: ACS, Abella and Bergerson. Click to enlarge.

Oil-Sands 236
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Researchers describe the “where” and “when” of life cycle emissions from gasoline and ethanol in the US

Green Car Congress

Researchers from the University of Minnesota have produced a spatially and temporally explicit life cycle inventory (LCI) of air pollutants from gasoline, ethanol derived from corn grain, and ethanol from corn stover for the contiguous US (the lower 48 states). Credit: ACS, Tessum et al. Click to enlarge. the contiguous US).

Gasoline 236
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PHEV's and Water Consumption

Plug In Partners

Water Supply, Researcher Says By Jennifer Bogo Popular Mechanics March 7, 2008 "A 30-mile commute in a gasoline-powered car would require the withdrawal of 18.9 gallons of water, according to a study he co-authored this week in the journal Environmental Science & Technology. And what about the water used to refine gasoline?

Water 100
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HEI report identifies potential health consequences from new vehicle fuels and technologies; recommended actions

Green Car Congress

The new SCET report reviews a range of new technologies and fuels, from improved internal combustion engines, to hybrid and other electric drive technologies, to existing and new bio- and other types of fuels. Hybrid, all-electric drive, and fuel cell technologies are likely to see substantial market penetration by the end of this decade.

Fuel 170
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National Academies Report Examines Hidden Cost of Energy Production and Use in US; Estimates $120B in 2005

Green Car Congress

A new report from the National Research Council examines and, when possible, estimates, “hidden” costs of energy production and use—such as the damage air pollution imposes on human health—that are not reflected in market prices of coal, oil, other energy sources, or the electricity and gasoline produced from them.

2005 246