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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

Green Car Congress

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). fuel combustion) comprises 64?74% Xs show comparative results from literature.

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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. 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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Study Finds Water Use for Switchgrass Ethanol Production Approximately the Same as for Gasoline

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Consumptive freshwater use for ethanol and petroleum gasoline production. The production of both bio and petroleum feedstocks and fuels requires substantial water input. In many cases, the Argonne team noted, crude oil production is increasingly water dependent. Data: Wu, ANL/ESD/09-1. Click to enlarge.

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UC Davis ITS researchers take a detailed look at water consumption and withdrawal requirements for ethanol

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Water consumption intensity of ethanol from corn grain and crop residue and the avoided/displaced water use credits assigned to coproducts: DGS and electricity. In their paper, Mishra and Yeh analyze the lifecycle water requirement consumption and withdrawal requirements of ethanol produced from corn and from crop residue.

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New Toyota Highlander turbocharged engine offers more torque and fewer emissions

Green Car Congress

Fuel efficiency is also improved for this higher-torque engine with an EPA-estimate of up to 25 MPG combined. The new engine, standard across all gasoline grades, is also more environmentally conscious, with more than a 50% reduction in NO x and NMOG compared to the outgoing V6 engine. liter V6 engine’s 263 lb-ft (357 N·m).

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Using Ozone-Generated Bubbles to Remove Oil Sheen and Contaminants from Water

Green Car Congress

A University of Utah engineer has developed an inexpensive new method to remove oil sheen by repeatedly pressurizing and depressurizing ozone gas, creating microscopic bubbles that attack the oil so it can be removed by sand filters. Water from mining of oil sands and oil shale. Heavy metals in soil.

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State Department issues Draft Supplemental Environmental Impact Statement on Keystone XL Pipeline: climate change impacts

Green Car Congress

The US Department of State (DOS) has released its Draft Supplemental Environmental Impact Statement (SEIS) in response to TransCanada’s May 2012 application for the Keystone XL pipeline that would run from Canada’s oils sands in Alberta to Nebraska. The pipeline would primarily transport crude oil from the WCSB and Bakken regions.