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Thread: Exxon cleans up Arkansas oil spill; Keystone plan assailed

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    Advisor WWGWD's Avatar
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    Re: Exxon cleans up Arkansas oil spill; Keystone plan assailed

    Quote Originally Posted by Juggernaut View Post
    The API gravity on the heaviest Canadian crude is 19-20. Certain South American crudes are in the same gravity range and have been moved through US pipelines for years. LOOP's minimum operating API requirement is >20. The oil industry is no stranger to these crude consistencies. 20 API crude is still a liquid, much like pancake syrup. Unless there are other hazards besides consistency, the clean up of canadian crude will be the same as other crudes.


    LOOP Information Portal - Distribution Information | Louisiana Offshore Oil Port Information Central


    CrudeMonitor.ca - Canadian Crude Quality Monitoring Program
    I will totally admit that I haven't looked into API, but as I understand it, tar sands is what will move through the Keystone Pipeline. I'm not sure it falls into the category, because it's a viscous material. It has weight. So when it encounters water, the sand sinks, making it imposible to skim. I don't know of any other way to clean oil out of water, not using skimmers and boom.

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    User Juggernaut's Avatar
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    Re: Exxon cleans up Arkansas oil spill; Keystone plan assailed

    Quote Originally Posted by WWGWD View Post
    I will totally admit that I haven't looked into API, but as I understand it, tar sands is what will move through the Keystone Pipeline. I'm not sure it falls into the category, because it's a viscous material. It has weight. So when it encounters water, the sand sinks, making it imposible to skim. I don't know of any other way to clean oil out of water, not using skimmers and boom.
    Tar sands oil when steam extracted maybe heavier than water (<10 API) at the point of extraction. From there, the "tar" will be upgraded and sand will be removed at the processing plant. In order to meet pipeline minimum operating API gravity it has to be thinned with lighter hydrocarbons (natural gas condensate), blended with lighter crude oil or processed into synthetic crude oil.


    “According to Keystone, the following are a list of crude oils that could be transported through the proposed pipeline:

    Synthetic crude oil, produced from the Alberta oil sands in Canada
    Dilbit, produced from the Alberta oil sands
    Synbit, produced from the Alberta oil sands
    Dilsynbit, produced from the Alberta oil sands
    Conventional light crude oil, produced from the Bakken Formation in Montana and North Dakota


    Just The Facts | Keystone XL Pipeline

    In the case of open pit mining tar sands, it is extracted in solid form, crushed, mixed with water, and pumped to a processing facility. Any leak/spill of the the tar sand/water slurry in that process would be difficult to clean with traditional methods But, those would be localized spills at the mine or processing plant.
    Last edited by Juggernaut; 04-06-13 at 05:34 PM.

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