丙烯水合制备二异丙基醚催化剂  

CATALYSTS FOR HYDRATION OF PROPYLENE TO PREPARE DIISOPROPYLETHER

作　　者：单希林[1,2] 宁书贵 胡云峰 董群[1,2] 武显春 

机构地区：[1]大庆石油学院石油化工系 [2]大庆石油化工总厂

出　　处：《大庆石油学院学报》1997年第2期43-46,共4页Journal of Daqing Petroleum Institute

摘　　要：考察了ＨＺＳＭ－５型，Ｙ型沸石，超稳Ｙ（ＵＳＹ）沸石及β沸石４种催化剂对丙烯水合直接制备二异丙基醚的催化性能，确定了β沸石是丙烯水合直接制备二异丙基醚的最优良的催化剂。选用β沸石作催化剂，在适宜的条件下，丙烯的转化率可达５９．９５％，二异丙基醚的选择性为５３．０６％，异丙醇的选择性为４４．２６％；确定的最佳反应条件为反应温度１６２℃，压力７．５ＭＰａ，丙烯与水物质的量比１．８，重时空速０．１９ｈ－１。Diisopropylether is a good oxygenante and octane improver for gasoline. Activities and selectivities of zeolites of HZSM 5, HY, HUSY and Hβ were investigated for hydration of propylene to prepare diisopropylether with a laboratory scale fixed reactor. Among the sezeolites, Hβ zeolites was proven to be the best for conversion of propylene to diisopropylether. At a proper reaction condition, the conversion of propylene is 59.95% with selectivities to DIPE of 53.06% and IPA of 44.26% over H β catalyst. Effects of reaction conditions such as temprature, pressure, propylene / water ratio of amount of substance and space velocity on activity and selectivity were studied over H β catalyst. The optimum reaction has been found out, which is 162 ℃, pressure 7.5 MPa, propylene / water ratio of amount of substance 1.8 and WHSV 0.19 h -1 for the H β catalyst.

关 键 词：沸石 水合 催化剂 丙烯 二异丙基醚 

分 类 号：TQ426.94[化学工程]