Photocatalytic Denitrogenation over Modified Waste FCC Catalyst

来源 :China Petroleum Processing & Petrochemical Technology | 被引量 : 0次 | 上传用户:shuangdei
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The strontium modified waste FCC catalyst was prepared by magnetic stirring method and characterized by Xray diffractometry(XRD),UV-Vis diffuse reflectance spectrometry(DRS),X-ray photoelectron spectroscopy(XPS)and scanning electron microscopy(SEM).Meanwhile,its photocatalytic denitrogenation performance was evaluated in terms of its ability to degrade the N-containing simulation oil under visible light.A mixture of strontium nitrate solution(with a concentration of 0.5 mol/L)and waste FCC catalyst was calcined at 400℃for 5 h prior to taking part in the photocatalytic denitrogenation reaction.The test results showed that the photocatalytic degradation rate of pyridine contained in simulation oil in the presence of the strontium modified FCC catalyst could reach 92.0% under visible light irradiation for 2.5 h. The strontium modified waste FCC catalyst was prepared by magnetic stirring method and characterized by Xray diffractometry (XRD), UV-Vis diffuse reflectance spectrometry (DRS), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) photocatalytic denitrogenation performance was evaluated in terms of its ability to degrade the N-containing simulation oil under visible light. A mixture of strontium nitrate solution (with a concentration of 0.5 mol / L) and waste FCC catalyst was calcined at 400 ° C for 5 h prior to taking part in the photocatalytic denitrogenation reaction. the test results showed that the photocatalytic degradation rate of pyridine contained in simulation oil in the presence of the strontium modified FCC catalyst could reach 92.0% under visible light irradiation for 2.5 h.
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