Oil and Natural Gas typically form in what environment? - marine life preserved at the bottom of deep
lakes
Hydrocarbons refer to which two elements? - hydrogen and carbon
Which of the fossil fuels are regional commodities with regional prices? - coal and natural gas
Coal is formed in what enviornment? - plants in a humic, swamp environment
Which fossil fuel contains ash? - coal
How many ranks of coal are there? - four
Which coal rank has the highest heating value? - anthracite
What two methods are used to mine coal? - deep mining and mountaintop removal
A proximate analysis shows that a certain lignite coal is 10% moisture, 30% volatiles, and 10% ash. What
is the % fixed carbon? - 1 - .10 - .30 - .10 = 0.5 or 50% carbon
Which coal rank has the highest percentage of volatiles? - lignite
Convert a coal price of $90/ton to $/MMBtu - $3.46/MMBtu
90/26 = 3.46
Which is more expensive, $100/ton of coal or$3/MCF of natural gas? - 100/26 = $3.85/MMBtu
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