Abstract: MTBE is an impotent additive of gasoline product and manufactured from refined LPG. The sulfur remained in the refined LPG influence the sulfur content of MTBE. It is found that the sulfur in refined LPG mainly comes from oxidized sulfonated cobalt phthalocyanine where the sulfide is in the form of disulfide and/or polysulfide. Based on these findings, the sulfur removal technologies from LPG and MTBE are tentatively proposed, respectively. Sulfur can be effectively removed from oxidized sulfonated cobalt phthalocyanine by organic solvent extraction to decrease the sulfur content in refined LPG and the MTBE with less than 10 ?g/g sulfur can be produced by distillation.