摘要
研究了以乙醇和碳四中的异丁烯为原料,QRE型阳离子交换树脂为催化剂合成乙基叔丁基醚(ETBE)的反应动力学,采用R-E型反应机理建立了反应动力学模型,求出了醚化反应速率方程。结果表明:异丁烯与乙醇醚化反应速率与乙醇浓度呈零级关系,与异丁烯、ETBE浓度可按拟一级进行数据处理;反应速率常数符合阿仑尼乌斯方程。经统计检验,所得醚化反应速率方程是高度显著的、可信的,可用于反应器的模拟计算。
The kinetics of the synthesis of ethyl tertiary-butyl ether（ETBE） from ethanol and isobutene in C4 streams with cation exchange resin as catalysts was investigated. A kinetics model based on Redeal-Eley （R-E） reaction mechanism was established, which showed excellent agreement with experimental results. Reaction rate has no relation with the concentration of ethanol and pseudo-first order kinetics could be used to process concentrations of isobutene and ETBE in the reaction mixtures.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2008年第3期453-456,共4页
Chemical Industry and Engineering Progress
关键词
乙基叔丁基醚
醚化
反应动力学
阳离子交换树脂
ethyl tert-butyl ether
etherification
catalytic reaction kinetics
cation exchange resin
