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Study finds methane emissions from coal mines ~50% higher than previously thought

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The amount of methane released into the atmosphere as a result of coal mining is likely approximately 50% higher than previously estimated, according to research presented at the recent annual meeting of the American Geophysical Union. The study is one of the first to account for methane leaking from old, abandoned mines.

Coal 321
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Study finds high sodium bicarbonate concentrations in water from coal-bed natural gas production harms aquatic life; water treatment can mitigate effects

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Produced water from coal-bed natural gas (CBNG) production may contain sodium bicarbonate (NaHCO 3 ) at concentrations that can harm aquatic life, according to a new study by the US Geological Survey; Montana Fish, Wildlife and Parks; the Bureau of Land Management and the US Environmental Protection Agency.

Sodium 218
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SAF company DG Fuels closes investments with two Japanese companies

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These facilities typically use approximately one ton of coal to produce one BBL of hydrocarbons, with a life cycle CO 2 emissions calculation that is slightly worse than equivalent fuels derived from conventional oil refining. DGF replaces the coal gasification used by others with biomass gasification and natural gas reforming.

Companies 370
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USGS/BOEM study identifies method to differentiate between natural seepage and produced oils in waters off Southern California

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Resource managers now have a method to determine the source of oil found in the waters off Southern California and differentiate between naturally seeped oils and those produced by offshore oil and gas production.

Oil 199
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Updated NETL study provides more detailed economic and environmental assessment of coal-to-liquids and CTL with modest biomass

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The National Energy Technology Laboratory (NETL) has released a follow-on study to its 2009 evaluation of the economic and environmental performance of Coal-to-Liquids (CTL) and CTL with modest amounts of biomass mixed in (15% by weight) for the production of zero-sulfure diesel fuel. Earlier post.). —White and Gray.

Coal 225
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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. This is not the same as crude oil occurring naturally in shales, as in the Bakken.

Oil-Sands 150
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Argonne Oleo Sponge for cleaning oil spills successful in real-world conditions off California coast

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The Oleo Sponge, a patent-pending technology to clean oil spills invented at the US Department of Energy’s (DOE) Argonne National Laboratory, performed successfully in an experiment conducted off the coast of Southern California. After the oil is wrung out, Oleo Sponge can be used again.

Oil 170