Word: tropsch
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Dates: during 1970-1979
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...amounts of hydrogen to coal at high temperatures and under very great pressure: it results in a rough equalization of the ratios of hydrogen and carbon molecules in coal. Frederich Bergius developed the process for turning coal into crude oil in Germany in 1913, and Franz Fischer and Hans Tropsch devised a catalytic process for converting coal directly into gasoline in 1925. During World War II the Bergius and Fischer-Tropsch processes supplied the Nazi government with petroleum, and in late 1945 several German liquefaction plants were dismantled and brought to the United States for study...