【摘 要】
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An attempt using graphene oxide modified self-regulating mesoporous titanium dioxide whisker as a catalyst carrier of hydrogen desulfurization, was carried out to prepare MoO3-NiO/TiO2 catalyst by sin
【机 构】
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Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology,Department of Chemical
【出 处】
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2013年能源颗粒前沿研讨会暨第三届全国能源颗粒材料学术研讨会
论文部分内容阅读
An attempt using graphene oxide modified self-regulating mesoporous titanium dioxide whisker as a catalyst carrier of hydrogen desulfurization, was carried out to prepare MoO3-NiO/TiO2 catalyst by single-step incipient wetness impregnation.X-ray, N2 absorption/desorption, SEM, Raman diffraction are adopted to characterize the properties of carriers and catalysts.The effect of graphene oxide modified mesoporous TiO2 whisker as catalyst carriers on the performance of dibenzothiophene (DBT) hydrogen desulfurization (HDS) was evaluated.Results show that the graphene oxide modified mesoporous TiO2 whisker has highly whisker morphology and larger specific surface area as well as special pore structure.DBT conversion over graphene oxide modified mesoporous TiO2 whisker could approach 100% under moderate conditions of reaction temperature 250 ℃, hydrogen partial pressure 2.0 MPa, hydrogen/oil ratio 400 and LHSV 4 h-1.Results also indicates that under the condition of similar specific surface area, the sequence of the desulfurization effect of the tested catalysts is graphene oxide modified mesoporous TiO2 whisker>mesoporous TiO2 whisker>rutile.
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