Highly Selective Production of Syngas from Chemical Looping Reforming of Methane with CO2 Utilization on MgO-supported Calcium Ferrite Redox Materials

Shah, Vedant; Cheng, Zhuo; Baser, Deven S.; Fan, Jonathan A.; Fan, Liang‐Shih

doi:10.1016/j.apenergy.2020.116111

Cited by 54 publications

(19 citation statements)

References 70 publications

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“…Ru with various other supports has already been studied extensively and shown different degrees of reactivity in DRM reactions. , However, a ceria-based catalyst proved to provide promising support for CH 4 chemistry as ceria can attach both to metals and can also provide oxygen rapidly . The previous studies showed that a combination of both Ru and ceria proved to be an attractive choice in DRM reactions. , In another report, Ru-CeO 2 was selected as a catalyst for dry reforming .…”

Section: Natural Gas Flaring Utilization Technologiesmentioning

confidence: 99%

Recent Developments in Natural Gas Flaring Reduction and Reformation to Energy-Efficient Fuels: A Review

Mansoor

Tahir

2021

Energy Fuels

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Annually billions of cubic meters of natural gas are flared around the globe at various oil and gas production sites. Natural gas flaring practices waste valuable energy resources that can be used for economic support and will also be beneficial to mitigate global warming effects. In this review, an overview of natural gas flaring impacts with respect to the environment with special emphasis on global annual natural gas flaring emissions and their reformation to energy-efficient fuels has been discussed. Initially, natural gas flaring emissions and their impacts in view of environmental pollution and global warming effects have been highlighted. The strategies to mitigate wastage to valuable energy resources through various flaring management strategies are also evaluated. In the main stream, various gas flaring reductions and utilization technologies based on their applications in the oil and gas industry and especially for remote oil and gas fields are discussed. Liquified natural gas (LNG) and compressed natural gas (CNG) technologies have been identified as the main gas flaring reduction methods based on their applicability, commerciality, and economical potential. In addition, gas to liquid (GTL) has been an advancing technology for the past many years toward its utilization of methane as a feed and converting it to useful industrial products such as synthesis crude and methanol. Finally, reformation technologies for synthesis gas (syngas) production such as thermal reforming, plasma reforming, and photoreforming are deliberated. Based on feed gas mixture, different reforming processes such as steam reforming of methane (SRM), dry reforming of methane (DRM), and bi-reforming of methane (BRM) are evaluated for hydrogen-rich syngas production. The future perspectives regarding gas flaring utilization technologies advancement with further improvements in utilization of flared gas to efficient energy fuels are proposed.

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Section: Natural Gas Flaring Utilization Technologiesmentioning

confidence: 99%

Recent Developments in Natural Gas Flaring Reduction and Reformation to Energy-Efficient Fuels: A Review

Mansoor

Tahir

2021

Energy Fuels

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“…The simulation results revealed that CuO and MgO could shift the equilibrium of the WGS reaction and suppress CO generation. And the proposed process achieved auto-thermal operation after operation parameters such as water to methanol ratio and temperature of reactors being analysed and optimized [111,194]. With further addition of Ga 2 O 3 , the catalyst showed strong resistance to particle sintering and agglomeration as the particle size of Cu showed no conspicuous change as evidenced by XRD and TEM characterization after cycles [112].…”

Section: Copper Based Oxygen Carriermentioning

confidence: 99%

Chemical looping reforming: process fundamentals and oxygen carriers

et al. 2022

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Chemical looping reforming (CLR) provides a viable process intensification approach for clean and efficient syngas production from carbonaceous fuel with inherent gas–gas separation. The rational design of metal oxide-based oxygen carriers and the scale-up of associated CLR reactor systems play important roles in CLR process development. This review first introduces the concept and advantages of CLR as well as its historical development. The process fundamentals, including basic schemes, reaction stoichiometry, thermodynamics, kinetics and reactor system design, are reviewed. The integral approach for CLR process development is illustrated, showing that the design and compatibility of oxygen carriers and reactor systems are critical for CLR performance. The reaction principle during the reduction of oxygen carriers is discussed, followed by strategies for improving the redox reactivity and stability. We further review and discuss the latest exciting advances on this subject with the purpose of illustrating factors that govern fundamental mechanisms in the redox reaction chemistry of oxygen carriers and their design principles for sustained chemical looping reactor applications. It is expected that these new advances will inspire more effective oxygen carriers and efficient reactor systems for the development and deployment of various CLR processes.

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“…This is carried out using a wide variety of catalysts, typically including supported nickel but also iron, calcium, zinc and cerium-based catalysts (Gao et al, 2020a;Ugwu et al, 2020;Dang et al, 2021;Shah et al, 2021) among others. Along with this variety of catalysts, a wide variety of conditions are also used with temperatures ranging from 550°C to 2,000°C, however very high yields (>95%) and selectivities (>95%) are typically achieved.…”

Section: Dimethyl Ether From Methanementioning

confidence: 99%

Synthetic Fuels Based on Dimethyl Ether as a Future Non-Fossil Fuel for Road Transport From Sustainable Feedstocks

2021

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In this review we consider the important future of the synthetic fuel, dimethyl ether (DME). We compare DME to two alternatives [oxymethylene ether (OMEx) and synthetic diesel through Fischer-Tropsch (FT) reactions]. Finally, we explore a range of methodologies and processes for the synthesis of DME.DME is an alternative diesel fuel for use in compression ignition (CI) engines and may be produced from a range of waste feedstocks, thereby avoiding new fossil carbon from entering the supply chain. DME is characterised by low CO2, low NOx and low particulate matter (PM) emissions. Its high cetane number means it can be used in CI engines with minimal modifications. The key to creating a circular fuels economy is integrating multiple waste streams into an economically and environmentally sustainable supply chain. Therefore, we also consider the availability and nature of low-carbon fuels and hydrogen production. Reliable carbon dioxide sources are also essential if CO2 utilisation processes are to become commercially viable. The location of DME plants will depend on the local ecosystems and ideally should be co-located on or near waste emitters and low-carbon energy sources. Alternative liquid fuels are considered interesting in the medium term, while renewable electricity and hydrogen are considered as reliable long-term solutions for the future transport sector. DME may be considered as a circular hydrogen carrier which will also be able to store energy for use at times of low renewable power generation.The chemistry of the individual steps within the supply chain is generally well known and usually relies on the use of cheap and Earth-abundant metal catalysts. The thermodynamics of these processes are also well-characterised. So overcoming the challenge now relies on the expertise of chemical engineers to put the fundamentals into commercial practice. It is important that a whole systems approach is adopted as interventions can have detrimental unintended consequences unless close monitoring is applied. This review shows that while DME production has been achieved and shows great promise, there is considerable effort needed if we are to reach true net zero emissions in the transport sector, particularly long-haul road use, in the require timescales.

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Highly Selective Production of Syngas from Chemical Looping Reforming of Methane with CO2 Utilization on MgO-supported Calcium Ferrite Redox Materials

Cited by 54 publications

References 70 publications

Recent Developments in Natural Gas Flaring Reduction and Reformation to Energy-Efficient Fuels: A Review

Recent Developments in Natural Gas Flaring Reduction and Reformation to Energy-Efficient Fuels: A Review

Chemical looping reforming: process fundamentals and oxygen carriers

Synthetic Fuels Based on Dimethyl Ether as a Future Non-Fossil Fuel for Road Transport From Sustainable Feedstocks

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