文献类型：期刊文献

中文题名：苯酚催化氨化合成苯胺

英文题名：Catalytic Ammoniation of Phenol to Aniline

作者：严之光[1];殷光祖[1]

机构：[1]华东化工学院化工系

年份：1989

卷号：18

期号：3

起止页码：171

中文期刊名：石油化工

外文期刊名：Petrochemical Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心1992】；CSCD:【CSCD2011_2012】；

基金：中国石油化工总公司资助

语种：中文

中文关键词：苯酚;苯胺;催化氨化

摘要：研究了在AH-32催化剂上苯酚氨化反应过程条件对苯胺收率的影响和反应动力学。在0.9MPa、390℃、苯酚的 LHSV 为0.06h^(-1)、NH_3:PhOH 为20(mol)的条件下,苯胺收率达98%以上,且在操作200h 后催化剂活性未见下降。动力学研究表明在388—427℃,苯酚分压0.0189—0.0653MPa,氨分压0.50—0.71MPa 范围内,反应速率对苯酚为0.3级,对氨为零级,视活化能为102kJ/mol。反应机理符合 Langmuir-Hinshelwood 型,并计算了动力学方程式中的常数。
The effect of reaction conditions on aniline yield and the reaction kinetics of the catalytic ammoniation of phenol on the atalyst were studied.Under the conditions of temparature 390℃,pressure 0.9 MPa,LHSV of PhOH 0.06 h^(-1) and NH_3/Ph OH mole ratio 20,the yield of aniline was over 98%,and the stability of catalyst over 200h.The kinetic study indicates that the order with respect to PhOH is 0.3 and the order with respect to NH_3 was zero,the apparent activation energy was 102.5kJ/mol under the conditions of 388—427℃,0.0189—0.0653MPa PhOH pressure and 0.50—0.71NIPa NH_3 pressure.The reaction mechanism were discussed.