CHICAGO SECTION AMERICAN CHEMICAL SOCIETY

摘要

Regulations to reduce the sulfur level in gasoline to less than 50 ppm by weight are in place or planned in many countries. The primary source of sulfur in gasoline is Fluid Catalytic Cracking (FCC) cat naphtha, which contributes approximately 50 wt% of gasoline pool volume but nearly 95% of gasoline sulfur. Critical to the economics of any gasoline desulfurization process is the ability to effectively remove sulfur due to the sulfur-containing mercaptans, thiophenes, and benzothiophenes in FCC naphtha without saturating the important high octane olefins present.