THE ROLE OF OXIDATIVE DESULFURIZATION IN AN EFFECTIVE ULSD STRATEGY

摘要

Oxidative desulfurization is an innovative technology that can be used to reduce the cost of producing ultra-low sulfur diesel (ULSD). The key to successful implementation of this technology in most refinery applications is effectively integrating the oxidative desulfurization unit with the existing diesel hydrotreating unit in a revamp situation. The economics of applying oxidative desulfurization technology are dependent on the operating pressure of the existing hydrotreating capacity. Two case studies have been developed to illustrate how this innovative new route can be effectively utilized. The first case study considered oxidative desulfurization as an alternative to revamping a 600 psig diesel hydrotreater, while the second case study examines a scenario where oxidative desulfurization can be used to reduce the operating cost of a 450 psig hydrotreater that has been revamped to produce ULSD.