Light-enhanced thermochemical production of solar fuels from methane via nickel-based redox cycle

Liu, Mingkai; Zhang, Jinrui; Yang, Tianlong; Rao, Qiong; Gai, Zhongrui; Zhao, Jianxiong; Pan, Ying; Su, Dong; Jin, Hongguang

doi:10.1016/j.fuel.2022.127035

Cited by 9 publications

(3 citation statements)

References 55 publications

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“…The crystal phases of the metal oxides are acquired using X-ray powder diffraction (XRD) with Cu-Kα radiation (λ=0.15418 nm) in the 2θ=20-80° angle range. Details about the fix-bed quartz tube reactor have been reported earlier [10].…”

Section: Experimental Set-upmentioning

confidence: 99%

Chemical Looping Steam Methane Reforming Process Using NiFe2O4 as Oxygen Carrier for Hydrogen Production

Gai,

Li,

Rao

et al. 2024

Preprint

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Chemical looping steam methane reforming (CLSMR) using metal oxide as oxygen carrier is regarded as an promising approach for hydrogen production, offering reduced costs and lower CO2 emissions compared to conventional steam methane reforming process. In this study, we proposed a multi-step chemical looping steam methane reforming process using NiFe2O4 as oxygen carrier (OC) for hydrogen production. Simulation model of the proposed cycle was developed using Aspen Plus. Experiments on fixed-bed reactor have been conducted to validate the reliability of simulation model. The effect of key process parameters has been evaluated. We found that the presented CLSMR process realized over 85% CH4 conversion in reduction step at 700 °C and more than 1.6 times of total product generation rate than that of FeO/Fe3O4 system at 900 °C in experiments. In terms of simulation model, 86.5% of methane to fuel efficiency and 66.9% of net efficiency could be obtained. The results demonstrate the proposed process has the potential to make advances in energy-efficient hydrogen production.

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Section: Experimental Set-upmentioning

confidence: 99%

Chemical Looping Steam Methane Reforming Process Using NiFe2O4 as Oxygen Carrier for Hydrogen Production

Gai,

Li,

Rao

et al. 2024

Preprint

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“…All oxygen carrier particles used in this work are prepared by mechanical mixing method. Alumina oxide (Macklin AR) as an inert carrier, Iron oxide (II, III) (Macklin 99%) and NiO/Al2O3 powders prepared in previous work [19] are mixed according to the mass ratio of metal oxide and inert carrier mass ratio is 6:4. The mixed oxygen carrier powder is mixed with kaolin and cellulose according to the mass ratio of 1:0.06:0.1.…”

Section: Sample Preparationmentioning

confidence: 99%

“…1. The detail apparatus can be found in our previous study [19]. In the case of the isothermal experiment, the particles with a total mass of 0.4 g, of which the mass ratio of Ni-P and Fe-P is 1:3 are used as oxygen carriers.…”

Section: Chemical Looping Reactionsmentioning

confidence: 99%

Iron-Based Oxygen Carrier Particles With High Performance for Mid-Temperature Chemical Looping Methane Reforming

Li,

Liu,

Zhang

et al. 2023

Preprint

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Hydrogen is an ideal and potential energy carrier due to its high energy efficiency and low pollution. An alternative and promising approach to hydrogen generation is the chemical looping steam methane reforming (CL-SMR) over iron-based oxygen carriers. However, the process faces challenges such as high reaction temperature (>850°C) and low methane conversion. We demonstrate that Ni-mixed Fe-based oxygen carrier particles have significantly improved the methane conversion and hydrogen production rate in the range of 450-600°C under atmospheric pressure. The effect on the reaction reactivity of oxygen carrier particles with different Ni-based particles mixed mass ratios has been determined in the continuous unit. More than 85% of methane conversion has been achieved at 600oC, and hydrogen can be produced in both reduction and oxidation steps. Moreover, the iron-based oxygen carrier particles exhibited good cyclic performance during 150 consecutive redox cycles at 600°C. The midtemperature iron-based oxygen carrier particles, integrated with a moving-bed chemical looping system, might provide a powerful approach toward more efficient and scalable hydrogen production.

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From lab to industry: Scaling-up Fe-Ni bimetallic nano oxygen carrier for mid-temperature methane chemical looping reforming

Tang,

Gai,

et al. 2025

Applied Energy

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Light-enhanced thermochemical production of solar fuels from methane via nickel-based redox cycle

Cited by 9 publications

References 55 publications

Chemical Looping Steam Methane Reforming Process Using NiFe2O4 as Oxygen Carrier for Hydrogen Production

Chemical Looping Steam Methane Reforming Process Using NiFe2O4 as Oxygen Carrier for Hydrogen Production

Iron-Based Oxygen Carrier Particles With High Performance for Mid-Temperature Chemical Looping Methane Reforming

From lab to industry: Scaling-up Fe-Ni bimetallic nano oxygen carrier for mid-temperature methane chemical looping reforming

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