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In page Synthetic fuel:
"The process of direct conversion of coal to synthetic fuel originally developed in Germany.[1] Friedrich Bergius developed the Bergius process, which received a patent in 1913. Karl Goldschmidt invited Bergius to build an industrial plant at his factory, the Th. Goldschmidt AG (part of Evonik Industries from 2007), in 1914.[2] Production began in 1919.[3][citation needed]
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