文献类型：期刊文献

中文题名：卤素修饰γ-Al_2O_3催化剂及其在MTBE裂解的研究

英文题名：The study of γ-Al_2O_3 modified by halogen and its application in MTBE cracking

作者：金玉松[1];王筠松[1];王丽[1];孙苏[1];郭耘[1];郭杨龙[1];卢冠忠[1]

机构：[1]华东理工大学工业催化研究所,上海200237

年份：2017

卷号：46

期号：11

起止页码：2150

中文期刊名：应用化工

外文期刊名：Applied Chemical Industry

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD_E2017_2018】；

基金：上海市科委项目(15DZ1205305)

语种：中文

中文关键词：固体酸催化剂;MTBE;L酸;B酸

外文关键词：solid acid catalyst;;MTBE;;L acid;;B acid

摘要：研究了不同卤素修饰对γ-Al_2O_3的酸性影响以及其对甲基叔丁基醚(MTBE)裂解性能的影响。结果表明,(NH_4)_2SiF_6溶液修饰催化剂能够使得MTBE转化率高于95%,且甲醇选择性为100%。XRD和FTIR表征结果显示,(NH_4)_2SiF_6修饰γ-Al_2O_3上形成γ-AlF_3晶相,引入B酸的同时也增加了L酸量,从而提高了催化剂反应活性。
The acidic properties and the application of alumina modified by halogen in the cracking of MTBE have been investigated. The results indicate that γ-Al2O_3 modified by( NH_4)_2SiF_6 exhibits excellent catalytic performance. Above 95% MTBE is converted into isobutene and the selectivity of Me OH is 100%. XRD,FTIR were used to characterize the acid sites and amount. γ-Al2O_3 modified by( NH_4)_2SiF_6 benefits the formation of γ-AlF_3. The introducing of B acid and the enhancement of the amount of L acid promote the cracking of MTBE.