Towards thermochemical recuperation applying combined steam reforming and partial oxidation of methane: Thermodynamic and experimental considerations

Wachter, Philipp; Hödl, Philipp; Raic, Juraj; Gaber, Christian; Demuth, Martin; Hochenauer, Christoph

doi:10.1016/j.enconman.2021.114927

Cited by 11 publications

(3 citation statements)

References 48 publications

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“…Methane is the most prominent compound in shale gas, , and biogas. − However, syngas can also be obtained from other components in less quantity in natural gas, such as ethane, propane, or butane, through different thermochemical processes such as steam/dry reforming, − partial oxidation, , chemical looping , or a combination of these processes − (see Table ).…”

Section: Raw Materials In the Ft Processmentioning

confidence: 99%

An Overview of Low-Temperature Fischer–Tropsch Synthesis: Market Conditions, Raw Materials, Reactors, Scale-Up, Process Intensification, Mechanisms, and Outlook

Apolinar-Hernández,

Bertoli,

Riella

et al. 2023

Energy Fuels

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The Fischer−Tropsch technology has allowed, since its emergence a century ago, the production of stable liquid fuels from different raw materials in different geographic scenarios that do not necessarily have oil reserves. Some of these raw materials can generate high-quality fuels with a lower content of sulfur, aromatic, and heterocyclic compounds. The scaling and intensification of the reactors are essential factors in this context, and important challenges such as energy transfer due to the highly exothermic reaction, hydrodynamics due to limited information on pilot-scale in a reasonable range of conditions, or reducing CH 4 selectivity while maintaining high conversion through catalyst design, must be considered. This perspective provides an overview of recent developments in industrial-scale low-temperature Fischer−Tropsch reactors, with a focus on the significance of microchannel reactors in the scale-up process. The advancement in the Fischer−Tropsch synthesis is discussed, with an emphasis on the carbide and CO insertion mechanisms, as well as the socio-political-economic factors that continue to impact the development of this technology.

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Section: Raw Materials In the Ft Processmentioning

confidence: 99%

An Overview of Low-Temperature Fischer–Tropsch Synthesis: Market Conditions, Raw Materials, Reactors, Scale-Up, Process Intensification, Mechanisms, and Outlook

Apolinar-Hernández,

Bertoli,

Riella

et al. 2023

Energy Fuels

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“…Hydrogen sulphide is inherently produced in the anaerobic digestion of organic waste (Vu et al, 2022) and it is a problematic impurity that can inhibit methanogenesis and cause equipment corrosion. Regarding the catalytic conversion of biogas to methanol, hydrogen sulphide and, in general, sulphur compounds, are one of the main chemicals provoking the poisoning of heterogeneous catalysts (Wachter et al, 2021). Traditionally, the use of iron-based formulations have been used for the total and partial removal of hydrogen sulphide in biogas (Magnone et al, 2018;Persson et al, 2021).…”

Section: Removal Of Biogas Contaminantsmentioning

confidence: 99%

Biogas improvement as renewable energy through conversion into methanol: A perspective of new catalysts based on nanomaterials and metal organic frameworks

Sánchez

2022

Front. Nanotechnol.

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In recent years, the high cost and availability of energy sources have boosted the implementation of strategies to obtain different types of renewable energy. Among them, methane contained in biogas from anaerobic digestion has gained special relevance, since it also permits the management of a big amount of organic waste and the capture and long-term storage of carbon. However, methane from biogas presents some problems as energy source: 1) it is a gas, so its storage is costly and complex, 2) it is not pure, being carbon dioxide the main by-product of anaerobic digestion (30%–50%), 3) it is explosive with oxygen under some conditions and 4) it has a high global warming potential (27–30 times that of carbon dioxide). Consequently, the conversion of biogas to methanol is as an attractive way to overcome these problems. This process implies the conversion of both methane and carbon dioxide into methanol in one oxidation and one reduction reaction, respectively. In this dual system, the use of effective and selective catalysts for both reactions is a critical issue. In this regard, nanomaterials embedded in metal organic frameworks have been recently tested for both reactions, with very satisfactory results when compared to traditional materials. In this review paper, the recent configurations of catalysts including nanoparticles as active catalysts and metal organic frameworks as support materials are reviewed and discussed. The main challenges for the future development of this technology are also highlighted, that is, its cost in environmental and economic terms for its development at commercial scale.

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“…Compared to fuels such as fuel oil and coal, the coke oven gas, blast furnace gas, and converter gas used in oxy-fuel lance scrap pre-heating technology offer an effective path to carbon reduction [22], which not only improves energy efficiency [23] but also offers huge energy-saving potential [24][25][26]. Wu et al [27] found that adjusting the gas flow rate or the negative pressure at the outlet achieved the best results for scrap baking in the hot metal ladle.…”

Section: Introductionmentioning

confidence: 99%

Influence of Oxy-Fuel Lance Parameters on the Scrap Pre-Heating Temperature in the Hot Metal Ladle

Zhuang

Zhan

Wang

et al. 2023

Metals

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As one of the vital ways to improve the converter heat balance and increase the scrap ratio, scrap pre-heating technology has attracted much attention from researchers. The aim of this paper is to reveal the effect of the oxy-fuel lance parameters on the temperature field, flow field, and scrap pre-heating temperature in the ladle by means of numerical simulations. For this, a three-dimensional mathematical model containing the turbulence model, the porous medium heat balance model, and other models has been developed. The research results show that the rational and correct choice of gas flow rate, lance position, and nozzle angle has an important influence on the temperature field and the average scrap temperature. When the gas flow rate increases, the internal annular combustion zone of the scrap gradually expands, the cold zone at the bottom of the scrap continues to decrease, and the average scrap temperature keeps increasing. When the gas flow rate is 5000 m3/h, and the average scrap temperature reaches 1197 K, the pre-heating time is 9.98 min. Lowering the oxy-fuel lance position helps to reduce the cold zone at the bottom of the scrap and increases the average temperature in the cold zone. Reasonable selection of the nozzle angle is conducive to improving the uniformity of the flow field. When the angle of the nozzle is 15°, the gas circulation zone is the largest, and the time to reach an average scrap temperature of 1197 K is the shortest.

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Towards thermochemical recuperation applying combined steam reforming and partial oxidation of methane: Thermodynamic and experimental considerations

Cited by 11 publications

References 48 publications

An Overview of Low-Temperature Fischer–Tropsch Synthesis: Market Conditions, Raw Materials, Reactors, Scale-Up, Process Intensification, Mechanisms, and Outlook

An Overview of Low-Temperature Fischer–Tropsch Synthesis: Market Conditions, Raw Materials, Reactors, Scale-Up, Process Intensification, Mechanisms, and Outlook

Biogas improvement as renewable energy through conversion into methanol: A perspective of new catalysts based on nanomaterials and metal organic frameworks

Influence of Oxy-Fuel Lance Parameters on the Scrap Pre-Heating Temperature in the Hot Metal Ladle

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