丙烯在SO_4^（2－）／M_xO_y固体超强酸催化剂上齐聚过程的研究  

A STUDY ON THE OLIGOMERIZATION OF PROPENE ON M_Xo_Y SOLID SUPERACID CATALYSTS

作　　者：潘声云[1] 杨政[1] 俞迪虎[1] 魏斌 

机构地区：[1]浙江大学化工系

出　　处：《化学反应工程与工艺》1995年第4期342-347,共6页Chemical Reaction Engineering and Technology

摘　　要：考察了丙烯在Ｍ＿ｘＯ＿ｙ固体超强酸催化剂上的齐聚过程。实验表明，催化剂的活性顺序为Ｚ＿ｒＯ＿２＞ＴｉＯ＿２，而Ｆｅ＿２Ｏ＿３催化剂几乎无活性。ＦＴ－ＩＲ表明，ＺｒＯ＿２催化剂具有超强酸的３个特征吸收峰，即１０５０、１１３０和１２２０ｃｍ￣（－１）。ＸＲＤ分析表明，ＺｒＯ＿２为非结晶态，而未浸Ｈ＿２ＳＯ＿４的ＺｒＯ＿２没有上述３个特征吸收峰，且以晶态存在。在Ｔ＝１３０℃、Ｐ＝４．０ＭＰａ、ＬＨＳＶ＝１．０ｈ￣（－１）和丙烯浓度为５０％的条件下，１００ｈ的稳定性试验表明，丙烯平均转化率为６９．５％，壬烯选择性为４５．５％和十二烯选择性为４１．６％。The propene oligomerization on M_xO_y solid superacid catalysts has been studied.The experimental results show that activity sequence of catalysts is ZrO_2>TiO_2,while Fe_2O_3 catalyst is almost nonactive. Results of XRD and FT-IR analysis indicate that ZrO_2 catalyst is noncrvstallinewith three characterizing absorption peaks located at 1050 cm￣(-1)、1130 cm￣(-1) and 1220cm￣(-1)。The present system with ZrO_2 catalyst has been run continuously for 100h underconditions of T=130℃,P=4.OMPa,LHSV=1.0h￣(-1),C_3/N_2=50/50(Volume),and thepropene conversion was kept at about 69.5%,and selectivity of propene trimer and propenetetramer was about 45.5/and 41.6%respectively.

关 键 词：固体超强酸 丙烯 齐聚 催化剂 聚丙烯 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]