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Hydrocarbons. Fossil Fuels Oil, Natural Gas, and Coal Account for 88% of energy used in the world Not renewable: –1500 – 250 yrs of coal –120 – 70 yrs.

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Presentation on theme: "Hydrocarbons. Fossil Fuels Oil, Natural Gas, and Coal Account for 88% of energy used in the world Not renewable: –1500 – 250 yrs of coal –120 – 70 yrs."— Presentation transcript:

1 Hydrocarbons

2 Fossil Fuels Oil, Natural Gas, and Coal Account for 88% of energy used in the world Not renewable: –1500 – 250 yrs of coal –120 – 70 yrs of natural gas –60 – 45 yrs of oil – where? Produces CO 2

3 Natural Gas Mostly methane (CH 4 ) –Ethane, propane and butane are removed Highest energy/mass Burns the cleanest ~100 year supply Less CO 2 /unit of energy ½ of homes in US heated with natural gas

4 Natural Gas Sometime will have to be replace with gas from coal Another source is methane hydrate crystals –Huge amounts but difficult to get Sour gas? –Contains H 2 S which must be removed

5 Petroleum First discovered: –1859 – Pennsylvania –1908 – Middle East – Iran Mixture of hydrocarbons – straight chain

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7 Petroleum First discovered: –1859 – Pennsylvania –1908 – Middle East – Iran Mixture of hydrocarbons – straight chain ½ of consumption for 500 million vehicles –1 billion vehicles by 2030 Will need other mobile fuels

8 Petroleum Also used for raw materials Less than ½ recovered – economics Demand will outstrip supply in this decade

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10 Petroleum Also used for raw materials Less than ½ recovered – economics Demand will outstrip supply in this decade –Price? Why is OPEC keeping the price of oil so low?

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12 H11 – C4 14 - 16, 18 - 21, 23 - 25, 27, 29, 51, 52


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