KINETIC REGULARITIES OF DIMETHYL ETHER TRANSFORMATION INTO 1,3-BUTADIENE IN THE PRESENCE OF ZnO/γAl2O3/Al CATALYST

被引：1
|
作者：
Maksimov, A. L. [1 ]
Tretyakov, V. F. [1 ]
Litvishkov, Yu N. [2 ]
Zulfugarova, S. M. [2 ]
Talyshinskiy, R. M. [1 ]
Ilolov, A. M. [1 ]
机构：
[1] RAS, AV Topchiyev Inst Petrochem Synth, Leninskiy Ave 29, Moscow 119991, Russia
[2] Acad Natl Sci Azerbaijan, M Nagiyev Inst Catalysis & Inorgan Chem, H Javid Ave 113, AZ-1143 Baku, Azerbaijan
来源：
CHEMICAL PROBLEMS | 2019年 / 01期
关键词：
dimethyl ether; heterogeneous catalysis; kinetics; reaction tracks; stoichiometric matrix; kinetic model; transformation mechanism; parameters of kinetic model;
D O I：
10.32737/2221-8688-2019-1-135-144
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
First explored kinetic regularities of kinetic transformation of dimethyl ether (DME) into 1,3-butadiene on ZnO/gamma Al2O3/Al catalyst synthesized in terms of microwave thermic treating. Considered stoichiometric models of mechanism to comply with hypothesis of three equiprobable routes involving divinyl preparation by means of parallel transformation of primary product of the reaction - ethanol into acetaldehyde and ethylene and their subsequent interaction to produce 1,3-butadiene; by means of interaction of subsequently transforming DME formaldehyde and propylene, as as well as a route including a stage of aldol condensation of acetaldehyde. It found that a kinetic model of reaction on the basis of stoichiometric matrix of eight-routes mechanism where formation of 1,3-butadiene is preceded by interaction of acetaldehyde and ethylene is notable for the best repeatability with experimental data on DME transformation. Calculated kinetic parameters providing reliable process control.
引用
收藏
页码：135 / 144
页数：10
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