Fe-ZSM-5分子筛上N_2O一步氧化苯制苯酚工艺条件研究  

STUDY ON THE PROCESS CONDITIONS OF BENZENE TO PHENOL BY ONE-STEP OXIDATION WITH NITROUS OXIDE OVER Fe-ZSM-5 ZEOLITE

作　　者：范卓[1] 李建伟[1] 米冠杰[1] 陈标华[1] 

机构地区：[1]北京化工大学化工资源有效利用国家重点实验室,北京100029

出　　处：《石油炼制与化工》2009年第10期30-33,共4页Petroleum Processing and Petrochemicals

基　　金：国家杰出青年科学基金(No.20625621)资助项目

摘　　要：对Fe-ZSM-5分子筛催化剂上N_2O一步氧化苯制苯酚的工艺条件进行了实验研究。以单因素实验法系统考察了温度、苯与N_2O摩尔比和空速对氧化过程的影响;并基于L_(16)(4~5)正交实验设计确定相对适宜的氧化工艺条件为:温度400℃、苯与N_2O摩尔比5.0:1、空速6 000 h^(-1),在此条件下苯酚收率为45.28%,N_2O转化率为89.28%,苯酚选择性为50.72%。The process conditions of benzene to phenol with nitrous oxide over Fe-ZSM-5 zeolite catalyst were studied in this paper. The effects of reaction temperature, C6 H6/N2O molar ratio and space velocity on the oxidation process were investigated by single-factor test method, and the optimum process conditions were obtained by means of orthogonal test designed method. Under the optimum conditions of a reaction temperature of 400 ℃ ,a C6H6/N2O molar ratio of 5,a space velocity of 6 000 h^-1 ,the N2O conversion,the yield and selectivity of phenol were 89. 28% ,45. 28% and 50.72% ,respectively.

关 键 词：苯 N2O 苯酚Fe-ZSM-5分子筛 氧化 

分 类 号：TQ243.12[化学工程—有机化工]