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Published byLenard Douglas Modified over 9 years ago
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Crude Oil Oil directly from the ground which is thick liquid with variety of hydrocarbons, sulfur, oxygen, nitrogen
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35% of oil in deposits is removed Remaining 65% of oil is heavy crude oil – Too hard and expensive to remove and refine – If prices of oil continue to increase about 10% of oil will be flushed with water to remove Not efficient and requires 1/3 barrel of crude oil to get a full barrel of heavy crude oil
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Oil Drilling Negatives – Oil spills – Harmful effects due to use and extraction Positives – Technologies allow for Deeper drilling Fewer rigs Get to deeper oil
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Where is the oil OPEC (67%) Saudi Arabia, Iran, Iraq, Kuwait, Qatar, Libya, Nigeria, Venezuela, UAE, Algeria, and Indonesia, – Saudis 26% – Other Arab nations 40% – Latin America (Ven. 9%) – Russia et al 6 % – US 3% (Refining in gulf of Mexico)
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How long will supplies last? Believed to have world production peak between 2010+2030 – U.S. peaked in 1975 Estimates believe that at current usage oil supply will last between 45 and 100 years. Need to change primary energy source – Past energy timeline: wood coal oil ??? – Believe that by 2100 primary energy source will be natural gas + hydrogen
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Tar Sands Mixture of clay, sand, water, bitumen Majority too deep to mine for profit and few are able to be mined at surface 3-5x as much greenhouse gas as oil because of energy required to process Known as “world’s dirtiest oil”
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coal
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Lignite Brown coal Lowest quality coal with the most impurities and sulfur content Used as energy for steam power. 60% carbon content Inefficient in use as energy source
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Bituminus Coal Made of Bituminus – Naturally occurring byproduct of decomposition 60-80% carbon content Dark brown/gray in color
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Anthracite Highest Carbon content at about 98% Cleanest burning and least amount of impurities
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What is coal used for
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Coal usage / location Commercial energy = 21% Electricity = 62% 66% of known coal deposits are in U.S 11% are in China
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ProsCons Large supply exists High energy yield Cheap ~$.04 per kwhr Technology already exists Highly pollutant Land, water, air destruction Hard to transport
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