Methane Influence on Catalytic Hydrogenation of Carbon Dioxide

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F19%3A43917953" target="_blank" >RIV/60461373:22320/19:43917953 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Methane Influence on Catalytic Hydrogenation of Carbon Dioxide

Popis výsledku v původním jazyce

Catalytic hydrogenation of carbon dioxide to methane is nowadays becoming an attractive way to utilize surplus electrical energy produced mainly from renewable energy sources. Catalytic methanation is a reaction of hydrogen and carbon dioxide during which they are converted into methane and water. Hydrogen required for the reaction can be produced via water electrolysis from surplus electrical energy. Biogas is mainly made up of methane and carbon dioxide. It makes it an ideal candidate for catalytic methanation as there is no need to separate carbon dioxide, which results in an overall more effective process. The produced methane-rich gas is either known as renewable natural gas (RNG) or sustainable natural gas (SNG). For example, this gas can be used for propulsion of vehicles or can be injected into the gas network and utilized its storage and transport capacity. Four model gases were tested at gauge pressure of 0.55 MPa. The first model gas served to determine activity and selectivity of the used catalyst. This gas consisted of a stoichiometric ratio of hydrogen and carbon dioxide (4:1). The other three gases consisted of biogas in ratios of CH4:CO2 20:80, 40:60 and 60:40 and hydrogen in a stoichiometric ratio to carbon dioxide. From the experimental results it is apparent that maximum methane production was achieved with the use of a model gas with methane to carbon dioxide ratio of 60:40 at 340 °C, were the molar fraction of methane in the product gas was 0.98.

Název v anglickém jazyce

Methane Influence on Catalytic Hydrogenation of Carbon Dioxide

Popis výsledku anglicky

Catalytic hydrogenation of carbon dioxide to methane is nowadays becoming an attractive way to utilize surplus electrical energy produced mainly from renewable energy sources. Catalytic methanation is a reaction of hydrogen and carbon dioxide during which they are converted into methane and water. Hydrogen required for the reaction can be produced via water electrolysis from surplus electrical energy. Biogas is mainly made up of methane and carbon dioxide. It makes it an ideal candidate for catalytic methanation as there is no need to separate carbon dioxide, which results in an overall more effective process. The produced methane-rich gas is either known as renewable natural gas (RNG) or sustainable natural gas (SNG). For example, this gas can be used for propulsion of vehicles or can be injected into the gas network and utilized its storage and transport capacity. Four model gases were tested at gauge pressure of 0.55 MPa. The first model gas served to determine activity and selectivity of the used catalyst. This gas consisted of a stoichiometric ratio of hydrogen and carbon dioxide (4:1). The other three gases consisted of biogas in ratios of CH4:CO2 20:80, 40:60 and 60:40 and hydrogen in a stoichiometric ratio to carbon dioxide. From the experimental results it is apparent that maximum methane production was achieved with the use of a model gas with methane to carbon dioxide ratio of 60:40 at 340 °C, were the molar fraction of methane in the product gas was 0.98.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20704 - Energy and fuels

Projekt

<a href="/cs/project/TH02020767" target="_blank" >TH02020767: Methanizace oxidu uhličitého v bioplynu</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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