Tar sands oil is some of the dirtiest oil in the world. One of the byproducts is petcoke, or petroleum coke. It's a coal-like substance that builds up in piles in refineries that process tar sands, and those petcoke piles pose major health risks to the communities that surround them. tar sands. Definition. A colloquial term for an oil reserve which are part of a natural mix of sand or clay, water, and a type of oil known as bitumen. Infographic: How Tar Sands Oil Is Produced High oil prices and technological advances have made it economically viable to ramp up oil production from Canada's tar sands. The oil pulled out of the ground is so thick and sticky that it needs complex, energy-intensive processing just to get it into a pipeline. Technically, both “tar sands” and “oil sands” are inaccurate. The substance in question is actually bituminous sand, a mixture of sand, clay, water and an extremely viscous form of petroleum called bitumen, which itself contains a noxious combination of sulphur, nitrogen, salts, carcinogens, heavy metals and other toxins. Additionally, the U.S. tar sands are hydrocarbon wet, whereas the Canadian oil sands are water wet. This difference means that U.S. tar sands will require different processing techniques. In this post, we’re focusing on tar sands, but we will explore the oil shale component in a future post.

Currently, the outlook on oil sands is a bit confusing. When oil prices are low they’re not a good option, but if prices rise then they become a viable source of oil. As liquid oil reserves deplete, however, the focus on oil sands is likely to increase. The Alberta tar sands comprise around 80% of the world’s oil sand reserves.

Tar pits are better known as oil sands, tar sands and bituminous sands, and they aren't only of interest to scientists -- they're also of great interest to energy  Oil sands or tar sands (also called oil-impregnated sandstones and bituminous sandstones) are, as the names imply, sandstones that are saturated or filled with   13 Dec 2012 Tar sands, also referred to as oil sands, are a combination of clay, sand, water, and heavy black viscous oil called bitumen. They can be extracted  24 Nov 2015 EXCLUSIVE / More than two thirds of European oil refineries are now equipped to process tar sands, research has found, raising fears the EU 

16 Aug 2012 The oil product extracted from Canada's tar sands isn't like conventional crude. Known as bitumen, it's sticky and so thick, it can't flow down a 

However, naturally occurring bitumen is chemically more similar to asphalt than to tar, and the term oil sands is now more commonly used by industry and in the  Tar pits are better known as oil sands, tar sands and bituminous sands, and they aren't only of interest to scientists -- they're also of great interest to energy  Oil sands or tar sands (also called oil-impregnated sandstones and bituminous sandstones) are, as the names imply, sandstones that are saturated or filled with   13 Dec 2012 Tar sands, also referred to as oil sands, are a combination of clay, sand, water, and heavy black viscous oil called bitumen. They can be extracted  24 Nov 2015 EXCLUSIVE / More than two thirds of European oil refineries are now equipped to process tar sands, research has found, raising fears the EU 

Oil sands, also known as "tar sands," are sediments or sedimentary rocks composed of sand, clay minerals, water, and bitumen. The oil is in the form of bitumen, 

Tar sands are a naturally occurring mixture of sand or clay, water and an extremely dense and viscous form of petroleum called bitumen. The process of 

Tar-sands development is already occurring in some places in the United States — and has taken off big in Alberta, Canada (a country also pondering oil-shale 

25 Sep 2014 As the name "tar sands", or oil sands, implies, the heavy crude is found mixed in with sand, clay, and water, which must be removed, then the  However, naturally occurring bitumen is chemically more similar to asphalt than to tar, and the term oil sands is now more commonly used by industry and in the  Tar pits are better known as oil sands, tar sands and bituminous sands, and they aren't only of interest to scientists -- they're also of great interest to energy 

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