February 1998

Special Report: Fuels and Feedstocks

FCCU main fractionator revamp for CARB gasoline production

Here is one refiner's experience with a major project to produce clean gasoline

Hanson, D. W., Process Consulting Services, Inc.; Hartman, E. L., Koch-Glitsch, Inc.; Weber, B., Ultramar Diamond shamrock Corp.

In June 1996, gasoline retail stations in California began selling a new reformulated gasoline. This was the result of a program conducted by the California Air Resources Board (CARB) and refining companies. It required the production of a gasoline that would reduce emissions from gasoline motor vehicles as well as attenuate the health risks originated by these emissions. This reformulated gasoline (RFG) is known in the U. S. refining industry as CARB gasoline. Emissions reductions targeted by CARB specifications comprised volatile organic compounds, nitrogen oxides, carbon monoxide and sulfur dioxide. Therefore, some of the affected gasoline properties included: olefins content, be

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