焙烧温度对HZSM-5分子筛催化1-丁烯齐聚性能的影响  

Effects of calcination temperatures on catalytic performance of HZSM-5 zeolite catalysts for 1-butene oligomerization

作　　者：王小琴[1] 孙启文[1] 孙燕[1] 张宗森[1] 

机构地区：[1]上海兖矿能源科技研发有限公司,煤液化及煤化工国家重点实验室,上海200132

出　　处：《工业催化》2016年第10期52-55,共4页Industrial Catalysis

摘　　要：考察焙烧温度对HZSM-5分子筛催化剂结构及1-丁烯齐聚性能的影响,采用XRD、SEM和NH3-TPD对催化剂进行表征。结果表明,升高焙烧温度,对HZSM-5分子筛催化剂的晶相和晶粒尺寸没有影响,催化剂中弱酸与强酸的酸强度和酸量均随焙烧温度的升高逐渐减弱。在催化剂晶粒尺寸一定条件下,催化剂酸性对催化剂的齐聚性能有较大影响,焙烧温度500℃时,C5+收率和C10+选择性最佳。The effects of calcination temperatures on the structure and catalytic performance of HZSM-5 zeolite catalyst for 1-butene oligomerization were investigated. HZSM-5 zeolite catalysts were characterized by XRD, NH3-TPD and SEM. The results of XRD and SEM showed that calcination temperatures had no effect on the crystal phase and particle size of the catalyst. NH3-TPD results showed that both the strength and amounts of weak acid and strong acid declined with the increase of calcination temperatures. The acidity of catalyst with the certain crystal size had great effects on the reaction of 1-butene oligomeriza- tion. HZSM-5 zeolite catalyst calcined at 500 ℃ had the best yield of C5 ＋ and the optimal selectivity to C10＋ .

关 键 词：催化剂工程 焙烧温度 HZSM-5分子筛 1-丁烯 齐聚 

分 类 号：TQ426.6[化学工程] TQ424.28