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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

<a href="/cs/project/EF16_019%2F0000753" target="_blank" >EF16_019/0000753: Centrum výzkumu nízkouhlíkových energetických technologií</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Energies

ISSN

1996-1073

e-ISSN

1996-1073

Svazek periodika

14

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

33

Strana od-do

—

Kód UT WoS článku

000681949700001

EID výsledku v databázi Scopus

2-s2.0-85111747795