Key Role of Reactor Internals in Hydroprocessing of Oil Fractions

Abstract

Several aspects of fixed-bed hydroprocessing reactor internals have been reviewed. Fundamentals of conventional and modern reactor internal hardware such as distributor trays and quench boxes are described, and examples of commercial systems are presented. The methods for detecting maldistribution and cases of successful revamping are also discussed. It was recognized that properly designed reactor internals improve substantially unit performance by increasing product quality and extending catalyst cycle length.