Исследование каталитического крекинга продуктов деасфальтизации гудрона

Abstract

Within the frames of research on expanding of the Fluid Catalytic Cracking Process (FCC) feedstock base, a product of vacuum residue de-asphalting using n-pentane has been obtained. The properties of deasphalted oil have been analyzed: fractionaland hydrocarbon content, density, Conradson coking capacity, sulfur, nitrogen, vanadium and nickel content. For comparison, the estimation of the industrial product of propane de-asphalting has been performed according to the specified parameters. Both products as potential components of the FCC feedstock have been processed in a fluidized bed catalytic cracking unit.Indicators of the degree of conversion and yields of gaseous and liquid transformation products have been established. It is proved that propane deasphalted oil by its characteristics is a promising feedstock for the fluid catalytic cracking process. The productof vacuum residue de-asphalting with n-pentane can also be used as a feedstock component of the FCC process, but it is advisable to use it in a mixture with traditional types of feedstock such as vacuum gas oil.