Coal liquefaction is the process of producing liquid fuels from coal. Coal liquifaction is a means of addressing the many energy applications that are suited for consuming liquids. The technology entails heating coal, often with various reagents such as hydrogen, which produces a liquid. The technologies can be controversial since they often generate large volumes of waste. The economic attractiveness of coal liquifaction is coupled to the price of petroleum. Related, competing technologies include coal gasification.
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Famous quotes containing the word coal:
“Writing is to descend like a miner to the depths of the mine with a lamp on your forehead, a light whose dubious brightness falsifies everything, whose wick is in permanent danger of explosion, whose blinking illumination in the coal dust exhausts and corrodes your eyes.”
—Blaise Cendrars (1887–1961)