Why is crude oil dark?
These towers separate the crude into a number of fraction, from the light gases (ethane, propane, butane) , naphtha (gasoline range), kerosene, diesel, gas oils, and asphalts. The heavier cuts contain higher levels of sulfur and color bodies (the things that make oil dark).
Is light crude better than heavy?
Any oil with an API gravity below 22 is considered “heavy oil.” Less dense, or “light oil” has an API gravity of greater than 31. Light oil is preferable to heavy oil because a higher percentage of the hydrocarbons are converted into things like gasoline. That’s why light oil trades at a premium to heavy oil.
Does the earth make oil?
By most estimates, there’s enough natural gas to produce about 1.6 trillion barrels of oil. … Still, the figure offers a hint at the extent of the world’s reserves: more than all the petroleum ever consumed — roughly 830 billion barrels — and enough to fuel the world for some 60 years at current rates of consumption.
What would crude oil do to a body?
Breathing the fumes from crude oil are known to cause chemical pneumonia, irritation of the nose, throat, and lungs, headache, dizziness, drowsiness, loss of coordination, fatigue, nausea, and labored breathing. Chronic exposure can result in irregular heartbeats, convulsions, and coma.