Perovskites as oxygen storage materials for chemical looping partial oxidation and reforming of methane

Li, Yuelun; Chen, Mingyi; Jiang, Lei; Tian, Dong; Li, Kongzhai

doi:10.1039/d3cp04626e

Cited by 2 publications

(1 citation statement)

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“…Unlike traditional fossil fuel gasification and reforming methods, chemical looping partial oxidation (CLPO) removes the necessity for an air separation unit, a water-gas shift reactor, or molecular oxygen from an air separation unit (ASU), thus resulting in increased gas efficiency and decreased fuel consumption [4]. Accordingly, CLPO can directly generate syngas with desirable H 2 :CO ratios and reduced CO 2 content [5]. Compared to conventional technology, CLPO technology is capable of reducing investment into equipment and preventing the risk of explosions from pre-mixed methane and oxygen combinations.…”

Section: Introductionmentioning

confidence: 99%

Advances and Challenges in Oxygen Carriers for Chemical Looping Partial Oxidation of Methane

Zhang,

Cui,

Si-ma

et al. 2024

Catalysts

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To cope with global warming and increasing carbon emissions, the chemical looping process has attracted attention due to its excellent ability to convert fossil fuel and capture CO2. In this case, chemical looping partial oxidation technology has become the focus of attention due to its advantages in the production of syngas and hydrogen, especially with respect to the design and selection of oxygen carriers, which directly affect the efficiency of the production of syngas and hydrogen. In particular, the conversion of methane can reach 95% in the chemical looping partial oxidation of methane, and the selectivity of syngas, in the range of 700 °C to 900 °C at atmospheric pressure, can reach 99% for twenty or more cycles. In this review, from the perspective of metal oxide selection and structure regarding the chemical looping partial oxidation process, we discuss the role of oxygen carriers in the chemical looping partial oxidation cycle, in which the specific surface area, the lattice oxygen mobility, and the thermal stability are understood as the important factors affecting reactivity. We hope to summarize the design and development of efficient oxygen carriers with high oxygen-carrying capacity and syngas selectivity, as well as contribute to the selection, design, optimization, and redox reaction mechanism of redox catalysts.

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Section: Introductionmentioning

confidence: 99%

Advances and Challenges in Oxygen Carriers for Chemical Looping Partial Oxidation of Methane

Zhang,

Cui,

Si-ma

et al. 2024

Catalysts

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show abstract

DFT insights into oxygen vacancy formation and chemical looping dry reforming of methane on metal-substituted CeO2 (111) surface

Chen,

Wang,

et al. 2024

Front. Chem. Sci. Eng.

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Perovskites as oxygen storage materials for chemical looping partial oxidation and reforming of methane

Abstract: The traditional partial oxidation, dry reforming and steam reforming of methane technologies are separated into two reactors for execution by chemical looping technology, which can avoid the defects exposed in...

Cited by 2 publications

References 210 publications

Advances and Challenges in Oxygen Carriers for Chemical Looping Partial Oxidation of Methane

Advances and Challenges in Oxygen Carriers for Chemical Looping Partial Oxidation of Methane

DFT insights into oxygen vacancy formation and chemical looping dry reforming of methane on metal-substituted CeO2 (111) surface

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