Performance comparison of different membrane reactors for combined methanol synthesis and biogas upgrading
| Autor: | T. Jiwanuruk, Palang Bumroongsakulsawat, Khunnawat Ountaksinkul, Paravee Vas-Umnuay, Nattapong Kasempremchit, Suttichai Assabumrungrat, Pattaraporn Kim-Lohsoontorn |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Membrane reactor Process Chemistry and Technology General Chemical Engineering Mass flow Energy Engineering and Power Technology 02 engineering and technology General Chemistry Permeation 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences chemistry.chemical_compound Biogas Chemical engineering chemistry Mass transfer Yield (chemistry) Methanol 0210 nano-technology Space velocity |
| Zdroj: | Chemical Engineering and Processing - Process Intensification. 136:191-200 |
| ISSN: | 0255-2701 |
| DOI: | 10.1016/j.cep.2019.01.009 |
| Popis: | The computational fluid dynamic (CFD) models of a planar membrane micro-structured reactor (MMR) and a triple pipe tubular membrane reactor (TMR) were established via COMSOL Multiphysics 5.3a in order to propose a reactor combining methanol synthesis and biogas upgrading simultaneously. The simulated results under predetermined conditions revealed that the methanol yield of 28.88%, CO2 permeation factor of 99.24% and water permeation factor of 89.64% were obtained from the MMR, which were higher than those obtained from the TMR. This was attributed to the fact that the high surface area-to-volume ratio of MMR provided superior heat and mass transfer rate for the reactions, resulting in a better performance of the reactor. Furthermore, the operating and design parameters of MMR were also investigated. It was found that the mass flow ratio of gas in biogas channels (BC) to that in reaction channels (RC) and Weight hour space velocity (WHSV) in RC significantly affected the reactor performance. Finally, the reactions of methanol synthesis in MMR were proved toovercome the equilibrium limitation at low pressure. The quality of bio-methane obtained from MMR could also be used as a fuel for vehicles. |
| Databáze: | OpenAIRE |
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