SAPO-17分子筛的合成、表征及催化性能研究  

Study on synthesis,characterization and catalytic performance of SAPO-17 molecular sieves

作　　者：李满枝[1] 徐军[1] 韩丽[1] 陈宜俍[1] 李兆飞[2] 阎立军[2] 

机构地区：[1]郑州大学化工与能源学院,郑州450001 [2]中国石油天然气股份有限公司石油化工研究院,北京100000

出　　处：《化工新型材料》2015年第4期166-168,共3页New Chemical Materials

基　　金：中国石油天然气股份有限公司低碳烃类及甲醇选择性催化裂解制丙烯催化剂研究项目(PRIKY13022);NSFC-河南人才培养联合基金(U1204215)资助

摘　　要：采用水热合成法成功合成出SAPO-17分子筛,并用XRD、SEM、N2吸附脱附、FT-IR、DTA/TG和NH3-TPD等方法研究了样品的物化性能。结果表明:合成的SAPO-17分子筛呈针状结构,并且具有较好的热稳定性。经过BET算法得到的比表面为406.71m2/g,孔径为0.65nm。合成不同硅铝比(Si/Al=0.05、0.08、0.11)的SAPO-17分子筛,均具有较好的MTO催化性能,其中硅铝比为0.11的SAPO-17分子筛催化性能最好,甲醇的转化率为100%,乙烯、丙烯收率分别为59.51%、26.35%。The SAPO-17 molecular sieve was synthesized hydrothermally. The properties of SAPO 17 were charac terized by XRD, SEM,N2 adsorption-desorption,FT-IR,DTA/TG and N H3-TPD technique which suggested that SAPO-17 had needles structure and good thermal stability,and the ratio sudace area was 406.71m^2/g, and the pore diameter was 0.65nm through BET algorithm. As the catalyst for MTO,SAPO-17（Si/AI=0. 05,0. 08,0. 11）had good catalytic perform- ance,among which SAPO-17（Si/Al=0. 11）was the best one and the methanol conversion, ethylene selectivity and propyl- ene selectivity of MTO were 100 %0,59.51%, 26.35% respectively.

关 键 词：硅磷酸铝分子筛(SAPO-17) 水热合成 表征 MTO 

分 类 号：O643.36[理学—物理化学]