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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). 74% of WTW emissions in our oil sands pathways. Click to enlarge.

Oil-Sands 287
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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.

Oil-Sands 255
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Imperial to construct major renewable diesel complex at Strathcoma refinery in Alberta

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The project is expected to realize about 3 million tonnes per year in emissions reductions in the Canadian transportation sector. Renewable diesel production will source blue hydrogen (hydrogen produced from natural gas with carbon capture and storage) to reduce greenhouse gas emissions relative to conventional hydrogen production.

Renewable 243
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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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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). This reduces the relative importance of transport costs compared to nonintegrated transport systems.

Oil-Sands 225
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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. Earlier post.).

Oil-Sands 314
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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).

Oil-Sands 337
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Understanding the variability of GHG life cycle studies of oil sands production

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In a paper published in the ACS journal Environmental Science & Technology , Stanford University assistant professor Adam Brandt reviews a number of recent life cycle assessment (LCA) studies calculating greenhouse gas (GHG) emissions from oil sands extraction, upgrading, and refining pathways—the results of which vary considerably.

Oil-Sands 225