Closing energy cycle: Power-to-Methanol and Methanol-to-Power

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00258_2016_02_03
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Shifting from fossil-fuel based energy system to renewable energy sources requires the adaptation of conventional technologies but also creation of new technologies. Both economic and technical aspects need to be considered in order to secure their successful introduction to markets. This article discusses two concepts: Power-to-Methanol and Methanol-to-Power that, combined, enable a closed energy cycle where methanol is used as energy carrier. The adaptation of conventional methanol synthesis technology using CO2-rich feed gases was successfully demonstrated under laboratory conditions, thus proving technical feasibility of this part of the Power-to-Methanol concept. However, techno-economic analysis revealed highly challenging process economics under present day cost assumptions. Portable Methanol-to-Power (MtP) generators were shown to achieve energy efficiencies that range from 36 % to 50 %. Despite the relatively high initial investment cost of these generators, they were shown to become more profitable in comparison to conventional portable power generators at long operational times due to their high energy efficiency.
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Autoren Francisco Vidal Vázquez / Ilkka Hannula / Pekka Simell
Erscheinungsdatum 01.02.2016
Format PDF
Zeitschrift gas for energy - Ausgabe 02 2016
Verlag DIV Deutscher Industrieverlag GmbH
Sprache English
Titel Closing energy cycle: Power-to-Methanol and Methanol-to-Power
Beschreibung Shifting from fossil-fuel based energy system to renewable energy sources requires the adaptation of conventional technologies but also creation of new technologies. Both economic and technical aspects need to be considered in order to secure their successful introduction to markets. This article discusses two concepts: Power-to-Methanol and Methanol-to-Power that, combined, enable a closed energy cycle where methanol is used as energy carrier. The adaptation of conventional methanol synthesis technology using CO2-rich feed gases was successfully demonstrated under laboratory conditions, thus proving technical feasibility of this part of the Power-to-Methanol concept. However, techno-economic analysis revealed highly challenging process economics under present day cost assumptions. Portable Methanol-to-Power (MtP) generators were shown to achieve energy efficiencies that range from 36 % to 50 %. Despite the relatively high initial investment cost of these generators, they were shown to become more profitable in comparison to conventional portable power generators at long operational times due to their high energy efficiency.
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