Economic analysis of hydrogen production by methane thermal decomposition: Comparison to competing technologies

Keipi, Tiina; Tolvanen, Henrik; Konttinen, Jukka

doi:10.1016/j.enconman.2017.12.063

Cited by 170 publications

(76 citation statements)

References 28 publications

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“…In the steam reforming of natural gas, steam and hydrocarbons are heated up to 750–900 °C to produce syngas, which then undergoes a water-gas-shift process followed by hydrogen purification via pressure swing adsorption. The fossil feedstock can be substituted by biomethane or other biofuels, but requiring additional technical improvements [45] . In other thermochemical processes such as coal or biomass gasification, the feedstock is converted into syngas at elevated temperature in a gasification medium such as air, oxygen and/or steam, and then syngas is further processed to hydrogen as explained above (water-gas-shift process followed by hydrogen purification via pressure swing adsorption) [46] .…”

Section: Methodsmentioning

confidence: 99%

Long-term production technology mix of alternative fuels for road transport: A focus on Spain

Navas-Anguita

García-Gusano

2020

Energy Conversion and Management

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Highlights National energy systems model on the production of alternative fuels for road transport. Second-generation biofuels would play a key role in satisfying the biofuel demand. Electric vehicles would mainly involve renewable power generation. Clean hydrogen for transport would be produced via electrolysis. Alternative fuel implementation highly contributes to decarbonising road transport.

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Section: Methodsmentioning

confidence: 99%

Long-term production technology mix of alternative fuels for road transport: A focus on Spain

Navas-Anguita

García-Gusano

2020

Energy Conversion and Management

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“…Considering hydrogen production, Keipi et al subsequently conducted an economic analysis of TCD compared to steam reforming and water electrolysis [83]. They found that hydrogen production by thermal decomposition of methane would be economically competitive with steam reforming with a product carbon value of at least 280-310 EUR/tonne.…”

Section: Economic Analyses Of Tcdmentioning

confidence: 99%

Carbons as Catalysts in Thermo-Catalytic Hydrocarbon Decomposition: A Review

Wal

Nkiawete

2020

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Thermo-catalytic decomposition is well-suited for the generation of hydrogen from natural gas. In a decarbonization process for fossil fuel—pre-combustion—solid carbon is produced, with potential commercial uses including energy storage. Metal catalysts have the disadvantages of coking and deactivation, whereas carbon materials as catalysts offer resistance to deactivation and poisoning. Many forms of carbon have been tested with varied characterization techniques providing insights into the catalyzed carbon deposition. The breadth of studies testing carbon materials motivated this review. Thermocatalytic decomposition (TCD) rates and active duration vary widely across carbons tested. Regeneration remains rarely investigated but does appear necessary in a cyclic TCD–partial oxidation sequence. Presently, studies making fundamental connections between active sites and deposit nanostructures are few.

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“…Methane pyrolysis is introduced in this study as an alternative to steam methane reforming and water electrolysis for hydrogen production.Methane pyrolysis is the process of decomposing methane into solid carbon and hydrogen by heating the natural gas to temperature of 1200°C to 1500°C in the absence of oxygen [38].The reaction is endothermic,74.6 kJmol − 1 is the heat of the reaction,which much lower than the SMR process.Thermal energy is needed raise the temperature of the incoming methane stream to the reaction temperature.…”

Section: Methane Pyrolysismentioning

confidence: 99%

“…Thermal energy from different sources can be added to the reactor ,including solar thermal, electrical,nuclear,micro-wave, plasma [39].Thermo-catalytic reduction of methane can be carried out at temperature lower than 1000°C.Various catalysts have been investigated by researchers.Metallic catalysts like Ni-SiO 2 ,Ni-Fe 2 O 3 ,Ni-Mn,Ni-Fe,Fe-Al 2 O 3 have been used.Carbonaceous catalysts like activated carbon and carbon black have also been investigated for the production of hydrogen from methane pyrolysis [39].Deposition of carbon on the surface of the catalysts reduces their activity [38][39][40][41] and can clog the fluid bed and packed bed reactors commonly used for thermo-catalytic conversion of methane to hydrogen and carbon.Finding efficient solutions to removal of carbon from the catalyst surface is an active area of research and solutions like steam and air purging,heating,frequent change of catalysts and other solutions are being explored.…”

Section: Methane Pyrolysismentioning

confidence: 99%

Lowering the Carbon Footprint of Steel Production Using Hydrogen Direct Reduction of Iron Ore and Molten Metal Methane Pyrolysis

Bhaskar¹,

Assadi²,

Somehsaraei³

2019

Preprint

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Reducing emissions from the iron and steel industry is essential to achieve the Paris climate goals. A new system to reduce the carbon footprint of steel production is proposed in this article by coupling hydrogen direct reduction of iron ore (H-DRI) and natural gas pyrolysis on liquid metal surface inside a bubble column reactor. If grid electricity from EU is used, the emissions would be 435 kg CO2/tls without considering methane leakage from the extraction, storage and transport of natural gas. Solid carbon, produced as a by-product of natural gas decomposition, finds applications in many industrial sectors, including as a replacement for coal in coke ovens. Specific energy consumption (SEC) of the proposed system is approximately 6.3 MWh per ton of liquid steel(tls). It is higher than other competing technologies, 3.48 MWh/tls for water electrolysis based DRI, and, 4.3-4.5 MWh/tls for natural gas based DRI and blast furnace-basic oxygen furnace (BF-BOF) respectively. Utilization of large quantities of natural gas, where the carbon remains unused, is the major reason for high SEC. Preliminary analysis of the system revealed that it has the potential to compete with existing technologies to produce CO2 free steel, if renewable electricity is used. Further studies on the kinetics of the bubble column reactor, H-DRI shaft furnace, design and sizing of components, along with building of industrial prototypes are required to improve the understanding of the system performance.

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Economic analysis of hydrogen production by methane thermal decomposition: Comparison to competing technologies

Cited by 170 publications

References 28 publications

Long-term production technology mix of alternative fuels for road transport: A focus on Spain

Long-term production technology mix of alternative fuels for road transport: A focus on Spain

Carbons as Catalysts in Thermo-Catalytic Hydrocarbon Decomposition: A Review

Lowering the Carbon Footprint of Steel Production Using Hydrogen Direct Reduction of Iron Ore and Molten Metal Methane Pyrolysis

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