Power-to-Green Methanol via CO2 Hydrogenation-A Concept Study including Oxyfuel Fluidized Bed Combustion of Biomass

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00351443" target="_blank" >RIV/68407700:21220/21:00351443 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.3390/en14154638" target="_blank" >https://doi.org/10.3390/en14154638</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/en14154638" target="_blank" >10.3390/en14154638</a>

Result language

angličtina

Original language name

Power-to-Green Methanol via CO2 Hydrogenation-A Concept Study including Oxyfuel Fluidized Bed Combustion of Biomass

Original language description

A revolution of the global energy industry is without an alternative to solving the climate crisis. However, renewable energy sources typically show significant seasonal and daily fluctuations. This paper provides a system concept model of a decentralized power-to-green methanol plant consisting of a biomass heating plant with a thermal input of 20 MWth. (oxyfuel or air mode), a CO2 processing unit (DeOxo reactor or MEA absorption), an alkaline electrolyzer, a methanol synthesis unit, an air separation unit and a wind park. Applying oxyfuel combustion has the potential to directly utilize O-2 generated by the electrolyzer, which was analyzed by varying critical model parameters. A major objective was to determine whether applying oxyfuel combustion has a positive impact on the plant's power-to-liquid (PtL) efficiency rate. For cases utilizing more than 70% of CO2 generated by the combustion, the oxyfuel's O-2 demand is fully covered by the electrolyzer, making oxyfuel a viable option for large scale applications. Conventional air combustion is recommended for small wind parks and scenarios using surplus electricity. Maximum PtL efficiencies of eta(PtL,Oxy) = 51.91% and eta(PtL,Air) = 54.21% can be realized. Additionally, a case study for one year of operation has been conducted yielding an annual output of about 17,000 t/a methanol and 100 GWh(th.)/a thermal energy for an input of 50,500 t/a woodchips and a wind park size of 36 MWp.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20704 - Energy and fuels

Project

<a href="/en/project/EF16_019%2F0000753" target="_blank" >EF16_019/0000753: Research centre for low-carbon energy technologies</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Energies

ISSN

1996-1073

e-ISSN

1996-1073

Volume of the periodical

14

Issue of the periodical within the volume

15

Country of publishing house

CH - SWITZERLAND

Number of pages

33

Pages from-to

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UT code for WoS article

000681949700001

EID of the result in the Scopus database

2-s2.0-85111747795