Catalysts and Selective Hydrotreating Processes of Catalytic Cracking Gasoline

Abstract

In Russian blended gasoline content of gasoline catalytic cracking (GCC) is greater than 30 %, with most the sulfur of from the permitted standard Euro 5 ten ppm in commercial gasoline was with GCC. The high sulfur content of the GCC makes it impossible to use them without prior hydrotreating, inevitably reducing the octane rating of gasoline. There was considered the nature of sulfur compounds making the major contribution in the octane rating. There was providing overview modern technological processes and catalysts for hydrotreating of GCC. There was shown that modern gasoline desulfurization based on pre-fractionation and separate purification of heavy and light fractions, which makes them technologically complex and energy intensive. Boreskov Institute of Catalysis together with JSC “Gazpromneft-MOR” developed of catalyst and a single stage hydrotreating process of GCC. Developed catalyst allows the selective hydrotreating all GCC fractions without pre-fractionation obtain gasoline with a sulfur content of no more than 10 ppm, and drop the octane rating of not more than one point.