Methods
The liquefaction processes are classified as direct conversion to liquids processes and indirect conversion to liquids processeses. Direct processes are carbonization and hydrogenation.
Read more about this topic: Coal Liquefaction
Famous quotes containing the word methods:
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—Crystal Eastman (1881–1928)
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—Germaine Greer (b. 1939)
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—Antonin Artaud (1896–1948)