Modelling of methanol production via combined gasification and power to fuel

Efthymia Ioanna Koytsoumpa, Sotirios Karellas and Emmanouil Kakaras

Renewable Energy, 2020, vol. 158, issue C, 598-611

Abstract: Methanol can play a significant role as a new energy carrier and can be used directly in the transportation and chemical sector as well as for heat and power applications. In the present work methanol production is investigated via modelling of 4 different processes combining steam-oxygen biomass gasification process and water electrolysis system as a means for energy storage. The main target is the reduction and use of direct biogenic CO2 emissions during production process and the enhancement of methanol production capacity. This is achieved via the introduction of hydrogen from the electrolysis system, the removal of water gas shift catalytic system, the reduction or elimination of the acid gas removal technology, which result in an increase of the overall efficiency. The efficiency for the combined gasification and power to methanol plant for the cases studied ranged between 42.82% and 52.78% without heat utilisation. The utilisation of the highly energetic off gases from the process and optimum heat integration were further investigated. The results showed that the total energy conversion efficiency can reach up to 59%. A comparison of SNG and methanol production via the combined technologies is also presented, indicating that SNG production can achieve higher efficiencies.

Keywords: Methanol; Gasification; CCU; Power to methanol; Energy storage; Electrolysers (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:158:y:2020:i:c:p:598-611

DOI: 10.1016/j.renene.2020.05.169

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