应用高真空重量法(分别以苯和正庚烷为吸附质)和低温N2吸附法对REUSY-Ex的吸附性能和二次孔结构进行了研究.结果表明,在水热处理过程中可产生二次孔结构,且二次孔的形成与水热处理的脱铝深度相关.稀HCl浸取REUSY不仅能浸取出位于其二次...应用高真空重量法(分别以苯和正庚烷为吸附质)和低温N2吸附法对REUSY-Ex的吸附性能和二次孔结构进行了研究.结果表明,在水热处理过程中可产生二次孔结构,且二次孔的形成与水热处理的脱铝深度相关.稀HCl浸取REUSY不仅能浸取出位于其二次孔中的非骨架铝(EFAL)碎片,而且还能浸取出位于微孔中的EFAL。29Si MAS NMR的结果显示,稀HCl浸取后,骨架Si(OAl)的谱宽变窄,裂分效果提高,表明其化学环境单一或均匀.展开更多
1 Introduction Recently, catalytic cracking catalysts have been developed from using USY zeolites as octane enhancement catalysts (mainly to improve the research-method octane number) to employing REUSY zeolites as hi...1 Introduction Recently, catalytic cracking catalysts have been developed from using USY zeolites as octane enhancement catalysts (mainly to improve the research-method octane number) to employing REUSY zeolites as high octane number-high gasoline yield catalysts (octanebarreled catalyst). The peculiarities of REUSY zeolites are the increase of the researchmethod octane number, the motor-method octane number and the gasoline yield. At pres-展开更多
文摘应用高真空重量法(分别以苯和正庚烷为吸附质)和低温N2吸附法对REUSY-Ex的吸附性能和二次孔结构进行了研究.结果表明,在水热处理过程中可产生二次孔结构,且二次孔的形成与水热处理的脱铝深度相关.稀HCl浸取REUSY不仅能浸取出位于其二次孔中的非骨架铝(EFAL)碎片,而且还能浸取出位于微孔中的EFAL。29Si MAS NMR的结果显示,稀HCl浸取后,骨架Si(OAl)的谱宽变窄,裂分效果提高,表明其化学环境单一或均匀.
基金Project supported by the National Natural Science Foundation of China
文摘1 Introduction Recently, catalytic cracking catalysts have been developed from using USY zeolites as octane enhancement catalysts (mainly to improve the research-method octane number) to employing REUSY zeolites as high octane number-high gasoline yield catalysts (octanebarreled catalyst). The peculiarities of REUSY zeolites are the increase of the researchmethod octane number, the motor-method octane number and the gasoline yield. At pres-
