On the importance of transesterification by-products during hydrogenolysis of dimethyl adipate to hexanediol
| Autor: | Jaroslav Aubrecht, David Kubička, Violetta Pospelova, Oleg Kikhtyanin, Josef Tomášek, Pavel Šimáček |
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| Rok vydání: | 2018 |
| Předmět: |
Hydrogen
010405 organic chemistry Fixed bed Chemistry organic chemicals Process Chemistry and Technology chemistry.chemical_element General Chemistry Transesterification Reaction intermediate Atmospheric temperature range 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Hydrogenolysis Adipate Organic chemistry |
| Zdroj: | Catalysis Communications. 111:16-20 |
| ISSN: | 1566-7367 |
| Popis: | Hydrogenolysis of dimethyl adipate over CuZnAl catalysts produces not only the desired hexane-1,6-diol, but also a number of by-products that have not been described so far. Catalytic experiments were carried out in a fixed bed reactor in the temperature range of 175–205 °C at hydrogen pressures of 10 and 16 MPa in the presence of a commercial CuZnAl catalyst. All reaction intermediates and products were identified by GC–MS and a reaction pathway of their formation via hydrogenolysis and transesterification was proposed. Upon evaluation of the role of the intermediates in dimethyl adipate conversion to hexane-1,6-diol it was established that the reaction by-products formed by transesterification affected the rate of hexane-1,6-diol formation. |
| Databáze: | OpenAIRE |
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