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U Calgary study finds oil shale most energy intensive upgraded fuel followed by in-situ-produced bitumen from oil sands

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A team at the University of Calgary (Canada) has compared the energy intensities and lifecycle GHG emissions of unconventional oils (oil sands and oil shale) alongside shale gas, coal, lignite, wood and conventional oil and gas. Earlier post.). —Nduagu & Gates.

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

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Full-fuel-cycle GHG emissions estimates for reformulated gasoline pathways by LCA study. He found that the variation in oil sands GHG estimates is due to a variety of causes. These include oil sands, enhanced oil recovery, coal-to-liquids and gas-to-liquids synthetic fuels, and oil shale.

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EIA projects world energy use to increase 53% by 2035; oil sands/bitumen and biofuels account for 70% of the increase in unconventional liquid fuels

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Unconventional liquids become increasingly important in the total supply of liquid fuels, according to IEO2011. World oil prices remain high in the IEO2011 Reference case, but oil consumption continues to grow; both conventional and unconventional liquid supplies are used to meet rising demand. Click to enlarge.

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Researchers Suggest That Although CCS and Other Technologies Could Reduce Oil Sands GHG Emissions to Near Zero, That Strategy May Not Make Sense

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Examples of emerging oil sands related technologies and trade-offs. The paper is an examination of how various choices about the scale of the life cycle analysis applied to oil sands (i.e., The source material is neither oil nor tar but bitumen, but is most generally described as an example of ultraheavy oil.”.

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Researchers Say Mix of Policies and Current or Near-Term Technologies Could Phase Out US CO2 Emissions from Coal-Fired Power Plants by 2030

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Life-cycle GHG emissions from fossil and alternative sources of electricity. This global climate change problem becomes manageable only if society deals quickly with emissions of carbon dioxide from burning coal in electric power plants, they state. A first step is to remove fossil fuel subsidies. Click to enlarge.

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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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Life-cycle GHG emissions per MJ of fuel produced and combusted for both 100-year and 20-year time horizons. Gasoline section shows results for fuel derived from both conventional oil and oil sands. Expansion bars show the components of fuel production. Credit: ACS, Burnham et al. Click to enlarge.

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Fossil Fuel Production Up in 2008 Despite Recession

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World production of fossil fuelsoil, coal, and natural gas—increased 2.9% million tons of oil equivalent (Mtoe) per day, according to a Worldwatch Institute analysis. Energy prices reflected this shift: oil peaked at $144 per barrel in July, then fell to $34 per barrel in December. in 2008 to reach 27.4

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