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Recently, two types of new gasoline detergents had been developed in our laboratory namely 2-hydroxyl-3-para- polyisobutylphenoxy propyl amines and parapolyisobutyl- phenoxyethyl amines using polyisobutyl(Mw=815, 995)phenol, epoxy chloropropane, 1,2-dibromoethane, diamine and triamine. In current investigation, studies were focused on their performances, their thermal stability and their effects on gasoline physicochemical properties. The fuel oxidation reactor test was performed which results showed that deposits formed 0.84 mg/cm2 from unadditized gasoline decreased to 0.30 ∼ 0.48 mg/cm2 when 300 μg/g(ppm) of 2-hydroxyl-3-parapoly- isobutylphenoxy propyl amine was added during 35 hours oxidation at 110°C, while deposits formed 0.84 mg/cm2 from unadditized gasoline decreased to 0.34 ∼ 0.52mg/cm2 when 300μg/g of parapolyisobutylphenoxy- ethyl amine was added during tests. Also, reduction patterns of deposit formation with increase of their dosage were investigated.

The paper deals with China's phased research objectives of alcohol fuel according to China's energy characteristics. It is concluded that the short term project is to study and apply metyanol-gasoling wity low ratio of metyanol, especiaooy M3 and M5. At the same time, some oppinions are given on what researchwork should be done in order to really commercialize methanol-gasoline with low ratio of methanol.