The Synthesis Of Functionalized Acidic Ionic Liquids And Their Applications In Preparation Of Oil

As the global energy shortage and environment deterioration trend growing, it is an important subject for energy researchers to develop the clean alternative fuel and renewable energy. Therefore, Development of low sulphur fuel oil and fuel oil desulfurization technology is conducive to environmental protection, which has become the core of the refining process in the worldwide. At the same time, because of its environmentally friendly, renewable and other advantages, biodiesel is expected to replace petroleum diesel fuel to meet people’s needs.Functionalized acidic ionic liquids are introducing acidic cation or anion of functional groups to the ionic liquids, which gives some special properties of ionic liquids. Functionalized ionic liquids are a kind of new catalytic material. In addition to the excellent catalytic properties, becase of its special physical and chemical properties, it is easy to separate from product and play a role in many important catalytic processes.In the present paper, acidic ionic liquid as the basic raw material was prepared by compound heteropoly acid ionic liquids, polymerization of ionic liquid, supported MOF ionic liquids as acidic catalyst material. Structural analysis was characterized by FTIR, NMR, SEM, XRD, N2 adsorption-desorption. Catalytic activity was tested through the catalytic reactions such as the preparation of biodiesel and catalytic oxidation desulfurization. The main results and innovations are as follows:(1) PSMIMHSO4 and Cs2.5 H0.5PW12O40 as the source of acid composite for compound ionic liquid Cs2.5H0.5PW12O40/PSMIMHSO4. Structural analysis was characterized by XRD, FTIR and NMR. In the reaction of biodiesel, the experiment of reaction temperature, time, dosage of catalyst and dosage of methanol were studied. And getting the optimum reaction conditions for: dosage of catalyst is 0.5 g, dosage of methanol is 60 g, reaction temperature is 70 ℃, reaction time is 3.5 hours. The conversion of biodiesel could reach 97.1%. In the desulfurization reaction, the experiment of reaction temperature, reaction time, dosage of catalyst and O/S mole ratio were studied. And getting the optimum reaction conditions for: dosage of catalyst is 0.5 g, n(H2O2)/n(S) = 6, reaction temperature is 40℃, the reaction time is 25 minutes. The rate of desulfurization could reach 97.4%.(2) 1-vinyl imidazole monomer ionic liquid was synthesized as the source of acid, then synthesis monomer to polymerization. Structural analysis was characterized by SEM, N2 adsorption-desorption, SEM, FTIR and NMR. In the reaction of biodiesel, the experiment of reaction temperature, time, dosage of catalyst and dosage of methanol were studied. And getting the optimum reaction conditions for: dosage of catalyst is 70 mg, dosage of methanol is 5 g, reaction temperature is 70 ℃, reaction time is 4 hours. The conversion of biodiesel could reach 94.2%. In the desulfurization reaction, the experiment of reaction temperature, reaction time, dosage of catalyst and O/S mole ratio were studied. And getting the optimum reaction conditions for: dosage of catalyst is 80 mg, n(H2O2)/n(S) = 5, reaction temperature is 50 ℃, the reaction time is 20 minutes. The rate of desulfurization could reach 95.5%.(3) N-methyl imidazole sulfonate ionic liquid was synthesized as the source of acid. Zirconium tetrachloride as metal precursor and terephthalic acids organic ligands via solvothermal method were to synthesize zirconium metal organic framework material. Structural analysis was characterized by SEM, XRD, N2 adsorption-desorption, FTIR and NMR. In the reaction of biodiesel, the experiment of reaction temperature, time, dosage of catalyst and dosage of methanol were studied. And getting the optimum reaction conditions for: dosage of catalyst is 50 mg, dosage of methanol is 5 g, reaction temperature is 70 ℃, reaction time is 6 hours. The conversion of biodiesel could reach 93.17%. In the desulfurization reaction, the experiment of reaction temperature, reaction time, dosage of catalyst and O/S mole ratio were studied. And getting the optimum reaction conditions for: dosage of catalyst is 400 mg, n(H2O2)/n(S) = 7, reaction temperature is 40℃, the reaction time is 20 minutes. The rate of desulfurization could reach 94.4%.(4) [C8H11N2O4]3PMo12O40·2CH3OH·H2O was synthesized. Structural analysis was characterized by X-ray crystallography, elemental analysis, FTIR and UV. In the reaction of biodiesel, the experiment of reaction temperature, time, dosage of catalyst and dosage of methanol were studied. And getting the optimum reaction conditions for: dosage of catalyst is 700 mg, dosage of methanol is 10 g, reaction temperature is 70 ℃, reaction time is 4 hours. The conversion of biodiesel could reach 95.1%. In the desulfurization reaction, the experiment of reaction temperature, reaction time, dosage of catalyst and O/S mole ratio were studied. And getting the optimum reaction conditions for: dosage of catalyst is 30 mg, n(H2O2)/n(S) = 6, reaction temperature is 50℃, the reaction time is 20 minutes. The rate of desulfurization could reach 88.3%.