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Researchers propose framework for CCS infrastructure optimization to reduce GHG emissions from oil sands extraction and processing

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CCS infrastructure for six key CO 2 emission prices. The width of the pipeline network (green lines) is proportional to CO 2 flow; the largest CO 2 flow is approximately 36 MtCO 2 / yr for the $155/tCO 2 scenario (pipeline leaving the Athabasca oil sands area). Sources are red and sinks are blue. Costs are in $US 2011.

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Oil sands GHG lifecycle study using operating data finds lower emitting oil sands cases outperform higher emitting conventional crude cases; a call for more sophisticated tools and reporting

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Well-to-wheel (WTW) greenhouse gas emissions for in situ SAGD and surface mining pathways generated employing GHOST/TIAX/ GHGenius combination and comparison with SAGD, mining and conventional crude oil literature pathways (all results are on a HHV basis). WTW emissions for pathways vary by more than ±10% (e.g.,

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Shell to proceed with Quest carbon capture and storage (CCS) project in the oil sands

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Shell will proceed with the first carbon capture and storage (CCS) project for an oil sands operation in Canada. billion Quest project will be built on behalf of the Athabasca Oil Sands Project joint venture owners (Shell, Chevron and Marathon Oil) and with support from the Governments of Canada and Alberta.

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U. Calgary analysis of energy balances and emissions of SAGD oil sands production finds need for improved processes; some operations not thermally efficient or net generators of energy

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Plot of cumulative steam-to-oil ratio (cSOR) vs. ratio of energy produced in form of chemical energy contained in bitumen if combusted to energy injected in form of steam (75% efficient steam generation). One of the key challenges in producing bitumen and heavy oil is their high, variable viscosity. From Gates and Larter (2013).

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New study finds GHG emissions from palm oil production significantly underestimated; palm oil biofuels could be more climate-damaging than oil sands fuels

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When peat swamps are drained for agriculture, the peat begins to decompose, and is an enormous source of carbon emissions. Mha (20%) of the peatlands of Peninsular Malaysia, Sumatra and Borneo in 2010, surpassing the area of Belgium and causing an annual carbon emission from peat decomposition of 230–310 Mt CO 2 e.

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Shell launches commercial operation of Quest carbon capture and storage in Alberta oil sands

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Shell marked the official opening of the Quest carbon capture and storage (CCS) project in Alberta, Canada, and the start of commercial operations there. Quest is designed to capture and safely store more than one million tonnes of CO 2 each year—equal to the emissions from about 250,000 cars.

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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. 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.

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