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It refers to making emmissions "cleaner" than would otherwise be before any type of filtering/reusing of the emission that is to be "whitenned".
Arrrrhhgg!
First answer by ID3669569718. Last edit by ID3669569718. Question popularity: 31 [recommend question]
Answers.com > Wiki Answers > Categories > Science > Environmental Issues > Pollution > What does the term 'whiten the barrel' mean in oil refining?
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Whiten the barrel? What is oil refining? How do you refining oil into petrol? Whitening the barrel in the refining? How long refining one barrel of oil take? In oil refining what does the term whiten the barrel mean?
