Fossil_Fuel_Resources_and_Use

Fossil_Fuel_Resources_and_Use - Fossil Fuel Resources and...

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Fossil Fuel Resources and Use
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Coal Produced by decomposition of ancient organic matter under high temperature and pressure lfur from the decomposition of Sulfur from the decomposition of Hydrogen Sulfide (H 2 S) by anaerobic bacteria became trapped in coal
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Extraction-Purification Surface mining and underground mining Prepared by removing foreign material, screening for size, crushing, and washing remove contaminants. to remove contaminants. Solid coal may also be turned into a gas or liquid fuel through clean-coal technologies
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Three Types of Coal Lignite: brown coal is the softest and has lowest heat content Bituminous: soft with high sulfur content, constitutes 50% of U.S. reserves Anthracite: hard with high heat content and low sulfur content, makes up 2% of U.S. reserves
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Coal Use Peat is pre-coal used in some countries but has low heat content Coal supplies 25% of world’s energy – hina and U.S. consume most China and U.S. consume most 87% of coal is used to produce electricity
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Coal Emissions The Clean Air Act requires up to 90% reduction in release of sulfur-containing gases leaning (washing) coal prior to burning Cleaning (washing) coal prior to burning Redesigning boilers ( fluidized bed combustion ) Scrubbing or adding limestone into effluent
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Coal Reserves Best estimates show that coal reserves are expected to last 300 years at current rates of consumption argest reserve of coal is in China Largest reserve of coal is in China
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Fossil_Fuel_Resources_and_Use - Fossil Fuel Resources and...

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