Process units in oil refineries and petrochemical plants

Abstract

Main process units and their functions in oil refineries and petrochemical plants are described. Among them are atmospheric and vacuum crude distillation, fluid catalytic cracking and hydrocracking, hydroprocessing (including hydrodesulfurization), and catalytic reforming (continuous catalytic regeneration and isomerization) units. Supporting units include amine treating, sulfur recovery, tail gas treatment, sour water stripper, and wastewater facilities. Three units at petrochemical plant (benzene-toluene-xylene; toluene and para-xylene; and phthalic anhydride) are described too.