The considerable recent interest in the conversion of stranded methane into transportable liquids as well as fuel cell technology has provided a renewed impetus to the development of efficient processes for the generation of syngas. The production of syngas (CO/H2), a very versatile intermediate, can be the most expensive step in the conversion of methane to value-added liquid fuels. The catalytic oxy reforming of methane, which is an energy-efficient process that can produce syngas at extremely high space-time yields, is discussed in this Review. As long-term catalyst performance is crucial for the wide-scale commercialization of this process, catalyst-related studies are abundant. Correspondingly, herein, emphasis is placed on discussing the different issues related to the development of catalysts for oxy reforming. Important aspects of related processes such as catalytic oxy-steam, oxy-CO2, and oxy-steam-CO2 processes will also be discussed.
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http://dx.doi.org/10.1002/anie.200701237 | DOI Listing |
ACS Omega
December 2024
Guangdong Provincial Key Laboratory of Distributed Energy System, Dongguan University of Technology, Dongguan 523820, China.
To comprehensively explore syngas cocombustion technology, gasification experiments in a bench-scale circulating fluidized bed (CFB) and three-dimensional (3D) numerical simulations of a coal-fired boiler furnace have been conducted. In the amplification experiment of biomass gasification, sawdust has been gasified using air, oxygen-enriched air, and steam. The highest heating value of the syngas products reaches 12.
View Article and Find Full Text PDFAppl Microbiol Biotechnol
December 2024
Department of Biotechnology, Delft University of Technology, van der Maasweg 9, 2629 HZ, Delft, The Netherlands.
Syngas fermentation to ethanol has reached industrial production. Further improvement of this process would be aided by quantitative understanding of the influence of imposed reaction conditions on the fermentation performance. That requires a reliable model of the microbial kinetics.
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2024
Henan Provincial Key Laboratory of Surface & Interface Science, Henan Engineering Research Center of Technology and Equipment of Biodegradable Materials, School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, PR China. Electronic address:
Developing highly efficient electrocatalysts to produce syngas with a stable hydrogen/carbon monoxide (H/CO) ratio in a wide potential window via electrochemical carbon dioxide (CO) reduction is desperately required but still challenging. Herein, a dual-atomic site on boron, nitrogen-codoped carbon nanotubes (BCN) has been designed, containing both cobalt (CoN) and nickel (NiNB) sites. Benefiting from the structure advantage and the bifunctional Co/Ni sites, such designed catalyst (CoNi-BCN) demonstrates remarkable performance for syngas production, achieving a stable H/CO ratio of 1.
View Article and Find Full Text PDFMolecules
November 2024
Department of Chemical and Biochemical Engineering, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.
The use of mixed cultures in gas fermentations could reduce operating costs in the production of liquid chemicals such as alcohols or carboxylic acids. However, directing reducing equivalents towards the desired products presents the challenge of co-existing competing pathways. In this study, two trickle bed reactors were operated at acetogenic and chain elongating conditions to explore the fate of electron equivalents (ethanol, H, and CO) and test pH oscillations as a strategy to target chain-elongated products.
View Article and Find Full Text PDFHeliyon
May 2024
School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing, 102206, China.
Coal gasification that converts coal into syngas is a promising technology for efficient and clean utilization of coal. Current simulations of coal gasification are mostly based on equilibrium reactions, which cannot reflect the residence time and carbon conversion rate. In this paper, the reliable chemical kinetics simulation of the coal gasification is carried out considering the solid residence time and the effects of the main parameters on the gasification performance are analyzed.
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