Spilled pipeline dilbit
is a clean-up nightmare, and bringing more bitumen to market is difficult to justify in a country committed to doing its part to prevent climate warming beyond 1.
Critics say it would, but the petroleum industry and government scientists say regulations require all pipelined dilbit
to be less dense or heavy than freshwater or seawater, which means any spill would initially float.
Line 9 has been carrying imported conventional oil for over a decade, but if the reversal is approved, the pipeline will carry dilbit
Somewhere along the line, you're working with the elements of a story and suddenly realize you have something," White said, noting that the Dilbit
disaster series also won the James Aronson Award for Social Justice Journalism, and was a finalist in the environmental reporting category for the Scripps Howard Awards.
To make dilbit
, Tar Sands are thinned by a cocktail of chemicals, heated and put under pressure.
Gulf Coast refineries with Canadian oil-sands dilbit
and crude, using their existing pipelines and newly built extensions that run from Oklahoma into Texas.
Although common to any place where heavy oil is produced--Mexico, Colombia, Peru, Ecuador and Venezuela, for example the diluent problem is particularly severe in Canada where highly viscous bitumen produced from Alberta tar sands has to be converted to dilbit
(a bitumen blend that contains 30-40% of diluent by volume) in order to meet pipeline maximum viscosity specification.
Critics say that dilbit
is more corrosive than other forms of crude; Enbridge assures the public it is not, and cites studies by the National Academy of Sciences and Natural Resources Canada.
The cost of removing diluent once the dilbit
has arrived at its destination is another cost associated with pipelines, a cost which is vastly reduced in rail shipments, says Koshka.
The report states that "instability of DilBit
can render pipelines particularly susceptible to ruptures caused by pressure spikes.
While some refineries started planning for the Canadian dilbit
a few years ago and are now completing upgrading projects to run more heavy crude, refiners did not anticipate the surge in U.
28-35), there is a lot more to the industry than merely mining the resource and processing it into synthetic crude or dilbit
(unrefined diluted bitumen).