Delayed coking — Innovations and trends: 1993 update

Abstract

Delayed coking has an increasingly important role to play in the integration of modem petroleum refineries because of its ability to convert heavy vacuum residues to lighter distillates and petroleum coke. The flexibility of operation inherent in delayed coking permits refiners to process a wide variety of crude oils including those containing heavy, high sulfur residues. These crudes are frequently bought at a discount and if economically convertible to light distillates by Delayed Coking can be a substantial factor in the refiner's cash flow development. The purpose of this article is to provide a perspective on the considerations that go into the specification of new Delayed Cokers and provide complementary operating insights.