Walter Rittman, US chemical engineer

Walter Rittman, US chemical engineer

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Caption: Walter Frank Rittman (1883-1954), US chemical engineer, at his desk. Rittman obtained his doctorate from Columbia University in 1914. He worked in research for the oil industry, and was employed by the United States Bureau of Mines. In 1916, he discovered a revolutionary process for cracking petroleum. This increased the amount of gasoline distilled from crude oil. He presented his findings to a special committee of leaders and members of Congres­s and the Cabinet. Photographed by Harris and Ewing in 1915.

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