Dehydrogenation of Methylbutenes to Isoprene: A Comparative Mathematical Analysis of the Dehydrogenation of Methylbutenes to Isoprene in Axial and Radial Reactors
| Autor: | Alexander A. Lamberov, M. V. Nazarov, O. S. Roshchina, B. Sh. Gilmurakhmanov, P. V. Urtyakov |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
010405 organic chemistry Contact time business.industry Mathematical analysis 01 natural sciences Catalysis 010406 physical chemistry 0104 chemical sciences chemistry.chemical_compound chemistry Yield (chemistry) Dehydrogenation Selectivity Adiabatic process business Isoprene Thermal energy |
| Zdroj: | Catalysis in Industry. 11:162-167 |
| ISSN: | 2070-0555 2070-0504 |
| DOI: | 10.1134/s2070050419020053 |
| Popis: | Using a mathematical model that describes the process of methylbutene dehydrogenation to isoprene, a comparative analysis of energy efficiency is performed for two upgrading variants: (1) a system of two serially arranged axial fixed-bed reactors and (2) an adiabatic fixed-bed reactor. A mathematical analysis is performed to determine the dependence of yield Y and selectivity S on quantity Q of thermal energy supplied by means of steam in each case. For the two-reactor system, the best performance characteristics (Y = 53.1% and S = 82.9%) are attained at Q = 9.0 MJ/kg and contact time t = 0.8 s. However, the best performance characteristics in the radial reactor (Y = 42.0% and S = 86.1%) are observed at Q = 7.8 MJ/kg and t = 0.8 s. It follows that the thermal energy required for the methylbutenes dehydrogenation reaction in the radial reactor is 13.0% lower than for the axial reactors. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink