DescriptionCharles J Plank and Edward Rosiniski describing their invention, Feb 1979.jpg
English: While researching catalysts for Mobil Oil in the 1950s, Charles Plank (right) and his chemical engineer partner Edward Rosinski (left) came up with the idea to use zeolite, a porous clay-like material that contains microscopic channels approximately the same size as the desired hydrocarbon length for gasoline. The superior activity and selectivity of the zeolite catalysts led to dramatically higher gasoline yields.
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Taken shortly before Rosinski (on left) and Plank (right) were inducted as the 30th and 31st members of the National Inventors Hall of Fame for US Patent No. 3,140,249, Catalytic Cracking of Hydrocarbons with a Crystalline Zeolite Catalyst Composite.