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Clean Coal Technologies
Beginning of essay
Coal is the most abundant fossil fuel and also regarded, as the dirtiest not only is coal inherently impure by composition by the fact that it contains ash and sulfur; coal is also difficult to burn completely. Many techniques to combust coal have been developed since the late 1800's. "The first in ....
Middle of essay
....d 13,000 Btu's per pound. It can be found in the western parts of the states. Lignite the lowest carbon content then the others "it usually has a brownish-black in color and often shows a distinct woody structure"(Encarta 97) The heat value of lignite ranges between 4,000 and 8,300 Btu's. As with Bituminous, Lignite is also used to generate electricity (Bartow 1).
What are ? is a new way that allows coal to be burned more efficiently, with reduced emissions of sulfur and nitrogen oxides, while .... |
| Number of words: 1551 |
Approximate pages: 6 |
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