【摘要】 采用浸渍法制备了不同Pt含量的Pt/SBA-15催化剂,采用X射线衍射(XRD)、X射线荧光光谱(XRF)、N2吸附-脱附和透射电镜(TEM)等方法对催化剂样品进行表征,并以正庚烷为模型化合物,考察了Pt/SBA-15与传统重整催化剂PR-D机械混合复合催化剂对重整反应的催化性能。结果表明,与单独使用PR-D催化剂相比,采用Pt/SBA-15与PR-D以质量比1∶9机械混合的复合催化剂时,正庚烷转化率基本相当,气体产率有所降低,液体收率有所升高。采用1.0%Pt/SBA-15与PR-D以质量比1∶9机械混合的复合催化剂时,芳烃产率较单独使用PR-D时增加3.2百分点。更多还原

【Abstract】 Pt/SBA-15catalysts with different Pt loading were prepared by wet incipient impregnation method and characterized by means of X-ray diffraction(XRD),X-ray fluorescence spectroscopy(XRF),N2adsorption-desorption and TEM.The performance of Pt/SBA-15and mixtures of Pt/SBA-15and traditional reforming catalyst PR-D in catalytic reforming reaction of n-heptane was investigated.It is found that the mixture of Pt/SBA-15and traditional reforming catalyst PR-D(1∶9)show almost same n-heptane conversion,lower gas yield and higher liquid yield than when they are used alone.On1.0% Pt/SBA-15and PR-D mixture(1∶9),the aromatics yield is increased by 3.2%than PR-D alone.更多还原