Sulfur, Octane, and Petrochemicals

摘要

This presentation covers the important topic of upgrading FCC gasoline. Many refiners recover propylene from the light ends of the FCC, but are ignorant of the commercial process to recover aromatics or other products from the naphtha stream. Coincident with product upgrading opportunities is the need to reduce sulfur to very low levels, which this same technology accomplishes nicely. Traditional technologies use selective hydrodesulfurization, which results in an objectionable octane loss in the gasoline.