Catalytic methanation of CO<sub>2</sub> in biogas: experimental results from a reactor at full scale

Dannesboe, Christian; Hansen, Jens Peter; Johannsen, I.

doi:10.1039/c9re00351g

Cited by 69 publications

(34 citation statements)

References 31 publications

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“…Recent demonstration projects with integration of SOEC systems with downstream synthesis processes are promising, e.g. for upgrading of biogas to pipeline quality biomethane in a pilot plant providing 10 Nm 3 /h (75). Here, a constant production was maintained for more than 2000 hours with electric power consumption for the SOEC of 3.07 kWh/Nm 3 H2 and the overall exergy efficiency from DC power to extra methane was close to 80 % (76).…”

Section: Synergies and Integration Of Soec With Chemical Synthesismentioning

confidence: 93%

Recent advances in solid oxide cell technology for electrolysis

Hauch

Küngas

Blennow

et al. 2020

Science

753

397

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In a world powered by intermittent renewable energy, electrolyzers will play a central role in converting electrical energy into chemical energy, thereby decoupling the production of transport fuels and chemicals from today’s fossil resources and decreasing the reliance on bioenergy. Solid oxide electrolysis cells (SOECs) offer two major advantages over alternative electrolysis technologies. First, their high operating temperatures result in favorable thermodynamics and reaction kinetics, enabling unrivaled conversion efficiencies. Second, SOECs can be thermally integrated with downstream chemical syntheses, such as the production of methanol, dimethyl ether, synthetic fuels, or ammonia. SOEC technology has witnessed tremendous improvements during the past 10 to 15 years and is approaching maturity, driven by advances at the cell, stack, and system levels.

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Section: Synergies and Integration Of Soec With Chemical Synthesismentioning

confidence: 93%

Recent advances in solid oxide cell technology for electrolysis

Hauch

Küngas

Blennow

et al. 2020

Science

753

397

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“…16 It can also be applied to convert biogas to biomethane. 17 In our previous studies, we characterized Ni/γ− Al 2 O 3 catalysts and their activity in CO 2 methanation under atmospheric pressure, 18 also in comparison with Ru/γ-Al 2 O 3 catalysts. 19 Moreover, we reported efforts to improve Ni/γ− Al 2 O 3 catalysts' activity and selectivity by adding silica and lanthana to catalyst formulation.…”

Section: ■ Introductionmentioning

confidence: 99%

Improvement of Ni/Al₂O₃ Catalysts for Low-Temperature CO₂ Methanation by Vanadium and Calcium Oxide Addition

Garbarino

Kowalik

Riani

et al. 2021

Ind. Eng. Chem. Res.

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CO2 methanation is a very promising technology for the production of alternative fuels with the simultaneous use of greenhouse gases. Therefore, intensive research is carried out on the optimization of catalysts with excellent properties for operation in the area of low temperatures. Here, we present research on a catalyst composed of 19 wt % NiO supported on alumina/calcium aluminate. The catalyst was modified with V2O5 in order to be suited for extrusion and scale-up in the frame of power to gas technology. Samples with various vanadium contents (Ni–xV, where x represents the amount of vanadium) were prepared in the form of ground granules obtained from 0.5 mm diameter spherical grains. X-ray diffraction (XRD), transmission electron microscopy (TEM), skeletal infrared (IR), diffuse reflectance ultraviolet–visible-near-infrared (DR-UV–vis-NIR), and X-ray photoelectron (XPS) spectroscopies, as well as H2 temperature-programmed reduction (H2-TPR), were used to characterize the samples. Catalytic performances of the catalyst samples were tested in CO2 hydrogenation at 1 atm. Among the many supported Ni catalysts tested in our laboratories, the catalysts of 0.5 and 1 wt % V showed very high activity, with the highest CH4 yield of 97% at 623 K. These catalysts exhibited 100% CH4 selectivity up to 673 K. The excellent performances of the studied catalysts are attributed to the possible formation of Ni–V solid solution alloy nanoparticles.

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“… 19 In these conditions, the Ni catalysts show low deactivation, so that the catalyst replacement can be planned for every 2 years. 20 H 2 and CO 2 were preheated to the inlet temperature by using a small fraction of the waste heat from the reactor, avoiding the need for external heating. The excess H 2 in the product stream was removed through a membrane to reach the grid-injection requirement of 2 mol per mol%.…”

Section: Methodsmentioning

confidence: 99%

Linking heat and electricity supply for domestic users: an example of power-to-gas integration in a building

Moioli

2022

RSC Adv.

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Catalytic methanation of CO₂ in biogas: experimental results from a reactor at full scale

Abstract: Methanation technology for direct catalytic upgrading of CO2 in biogas is proven ready for full scale implementation.

Cited by 69 publications

References 31 publications

Recent advances in solid oxide cell technology for electrolysis

Recent advances in solid oxide cell technology for electrolysis

Improvement of Ni/Al₂O₃ Catalysts for Low-Temperature CO₂ Methanation by Vanadium and Calcium Oxide Addition

Linking heat and electricity supply for domestic users: an example of power-to-gas integration in a building

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Catalytic methanation of CO2 in biogas: experimental results from a reactor at full scale

Abstract: Methanation technology for direct catalytic upgrading of CO2 in biogas is proven ready for full scale implementation.

Cited by 69 publications

References 31 publications

Recent advances in solid oxide cell technology for electrolysis

Recent advances in solid oxide cell technology for electrolysis

Improvement of Ni/Al2O3 Catalysts for Low-Temperature CO2 Methanation by Vanadium and Calcium Oxide Addition

Linking heat and electricity supply for domestic users: an example of power-to-gas integration in a building

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Catalytic methanation of CO₂ in biogas: experimental results from a reactor at full scale

Improvement of Ni/Al₂O₃ Catalysts for Low-Temperature CO₂ Methanation by Vanadium and Calcium Oxide Addition