乙酸甲酯催化加氢制乙醇工艺.pdf

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CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2015年第34卷第7期
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研究开发
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乙酸甲酯催化加氢制乙醇工艺
杨天字,曹祖宾,韩冬云,越荣祥,李秀萍,邓小丹2,王艳清
('辽宁石油化工大学化学化工与环境学部,辽宁抚顺11002中国寰球工程公司辽宁分公司,辽宁抚顺
113005:中国石油抚顺石化公司石油三厂,辽宁抚顺113001)
摘要:以基乙酸下游产品乙酸甲醋为原料,在Cu-Zn-Al催化剂上加氢制取乙醇,利用气相色譜仪对产品进行
定性、定量分析。分別考察了反应温度、反应压力、乙酸甲酯液时空速、氢气与乙酸甲酯摩尔比等操作因素对
乙酸甲酯转代化率和目标产物乙醇选择性的影响。实验结果表明,最佳エ艺操作参数为:反应温度240℃,反应压
カ8MPa,乙酸甲酯液相体积空速h,氩气与乙酸甲酯的摩尔比9:1。在最优エ艺条件下,乙酸甲酯的单程转
化率为95.5%,目的产物乙醇的选择性为94.6%。液体产品的平衡组成为:甲酶38.12%,乙醇59.52%,乙酸甲
酯0.86%,乙酸乙間1.29%。数据表明:在乙酸甲酯加氯制乙醇反应过程中。CuZn-Al催化剂对羰基加氩的活性
较高,对乙醇具有较高的选择性,同时能够有效抑制主要副产物乙酸乙酯的生成。
关键词:乙酸甲酯;乙醇;加氩;Cu-Zn-A1催化剂
中图分类号:TQ032
文献标志码:A
文章编号:100-6613(2015)07-1872-06
DOI:10.16085/.isSn.1000-6613.2015.07.010
Process research on the catalytic hydrogenation of methyl acetate to
ethano
YANG Tianyu, CAO Zubin, HAN Dongyun, ZHAO Rongxiang, LI Xiuping, DENG Xiaodan
WANG Yangin
(College of Petrochemical Technology, Liaoning Shihua University, Fushun 113001, Liaoning, China HQCEC
Liaoning Company, Fushun 1 13006, Liaoning, China; Fushun Petrochemical Company Refinery No.3 of CNPC, Fushun
113001, Liaoning, China)
Abstract: Ethanol was synthesized by using methyl acetate as raw material, and copper-based catalyst
(CU-ZN-AL) was utilized in the hydrogenation process, products were analyzed qualitatively
quantitatively via gas chromatograph. The effects of reaction temperature, reaction pressure, the iquid
hourly space velocity(LHSV) of methyl acetate, the molar ratio of hydrogen and methy! acetate and
other factors on the conversion rate of feed methyl acetate and the selectivity of target product of
ethanol were investigated respectively. The experimental results indicate that the optimal operating
parameters are temperature of 240 C, pressure of &Mpa, LHSV of Ih, ratio of hydrogen and methyl
acetate of 1. Under the optima condition, the conversion rate of methyl acetate is.5%, the
selectivity of product ethanol is 94.6%. The equil um composition of liquid product is that methanol
38.12%, ethanol 59, 52%, methyl acetate 0.86%, and ethyl acetate 1.29%. As is shown by data that
Cu-zn-al catalyst possesses high activity on carbonyl hydrogenation and good selectivity for ethanol
moreover it can inhibit the production of ethyl acetate
Key words: methyl acetate; ethanol; hydrogenation; Cu-zn-al catalyst
收稿日期:2014-10-27;修改稿日期:201412-26
料生产。联系人:曹祖宾,教授。E-mailcaozubin974@163.com。
第一作者:杨天字(1989-),男,硕土研究生,研究方向为清洁燃