CAJ | 학술논문

制备了加氢改质催化剂Pt/USY、Pt/1.0K-USY和Pt/2.0K-USY，并借助XRD、N2等温吸附-脱附、NH3-TPD和Py-FT-IR表征了这3种催化剂的结构和酸性，同时以预精制FCC柴油为原料，采用固定床反应器研究了上述催化剂的加氢改质反应性能。结果表明，在金属Pt负载量相同和催化剂孔道结构相似的情况下，催化剂的反应活性和选择性主要取决于催化剂的酸量和酸强度以及酸分布，相对而言，具有适宜酸性的Pt/1.0K-USY催化剂更有利于芳烃饱和与选择性开环反应，其加氢改质柴油满足国V标准要求。
제비료가경개질최화제Pt/USY、Pt/1.0K-USY화Pt/2.0K-USY，병차조XRD、N2등온흡부-탈부、NH3-TPD화Py-FT-IR표정료저3충최화제적결구화산성，동시이예정제FCC시유위원료，채용고정상반응기연구료상술최화제적가경개질반응성능。결과표명，재금속Pt부재량상동화최화제공도결구상사적정황하，최화제적반응활성화선택성주요취결우최화제적산량화산강도이급산분포，상대이언，구유괄의산성적Pt/1.0K-USY최화제경유리우방경포화여선택성개배반응，기가경개질시유만족국V표준요구。
Pt/USY,Pt/1.0K-USY and Pt/2.0K-USY hydro-upgrading catalysts were prepared. The typical structure and acidity of molecular sieves and catalysts were characterized by XRD,N2 absorption-desorption,NH3-TPD and Py-FT-IR. Then the hydro-upgrading performance of these catalysts was studied in a continuous down-flow fixed bed with stainless steel tubular reactor and refined FCC diesel oil was chosen as feedstock. The reaction results indicated that the activity of the catalysts mainly depended on their acid quantity,acid intensity,and acid distribution with the same Pt content and the similar pore structure. Suitable acidity was more favorable for the aromatic saturation and selective ring opening reaction. The diesel product meets national V Diesel standards.