New processes for gasoline sulfur reduction

Worldwide effort has been made to lower the sulfur level of gasoline significantly as part of continuing effort to reduce air pollution. New processes for gasoline desulfurization were briefly reviewed in which adsorption desulfurization is an attractive technology for its low investment and operation costs. In accordance to the composition of domestic gasoline, FCC naphtha should be highlighted to reduce sulfur content. Direct desulfurization in FCC process and adsorption desulfurization, etc. are proposed to reduce the sulfur level in FCC naphtha for meeting the requirement of new formulation gasoline.