The competition/inhibition effect of H2O/CO2-char gasification in typical in situ gasification-chemical looping combustion (iG-CLC) conditions via particle-resolved simulation

Zheng, Chaohe; Zheng, Chuanbao; Su, Mingze; Zhao, Haibo

doi:10.1016/j.fuel.2022.126316

Cited by 14 publications

(2 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous research on chemical looping using WV as one of the agents focuses on hydrogen production via WGSR of gaseous fuel (CO and CH 4 ) 11,[16][17][18][19] or gasification of solid fuel (coal and biomass), [20][21][22][23] and the research on the attrition of OCs were studied without evaluating the potential effects of WV. [24][25][26] For instance, Kramp et al modeled the attrition of copper-based OC with CH 4 .…”

Section: The Authors Have Previously Reported On Developing Fe-basedmentioning

confidence: 99%

Water vapor effects on attrition and elemental migration of iron‐based oxygen carrier in chemical looping combustion

Huang,

Omosebi,

Gao

et al. 2024

AIChE Journal

View full text Add to dashboard Cite

Chemical looping combustion (CLC) offers a novel approach to simultaneous power generation and carbon capture. However, the commercial viability of CLC depends on durable and cost‐effective oxygen carriers (OCs). This study assesses the impact of water vapor (WV) on the attrition of red mud OC, crucial for industrial CLC deployment. Findings indicate a significant reduction in the average attrition rate, from 0.06%/h to 0.03%/h, attributed to the limitation of Fe2O3 reduction, resulting in reduced volumetric and temperature changes in the presence of WV. A developed volume‐based model reveals attrition contributions in the order of chemical > mechanical >> thermal stresses, influencing OC particle surface morphology. Remarkably, the formation of the iron‐oxide layer remains unaffected by WV, reducing agents (CO or H2), or superficial velocities, suggesting scalable iron recovery from attrition with enhanced flexibility in future applications.

show abstract

Section: The Authors Have Previously Reported On Developing Fe-basedmentioning

confidence: 99%

Water vapor effects on attrition and elemental migration of iron‐based oxygen carrier in chemical looping combustion

Huang,

Omosebi,

Gao

et al. 2024

AIChE Journal

View full text Add to dashboard Cite

show abstract

“…Moreover, H 2 O is widely used as a gasification agent in chemical looping combustion. , The presence of H 2 O can significantly promote the formation of the NCO* radical on the CuO surface, which is conducive to the generation of N 2 and NO 2 . It was found that the energy barrier of NCO* generation is 141.00 kJ/mol in the absence of H 2 O.…”

Section: Reaction Mechanism Of Nitrogen-containing Pollutants With Ox...mentioning

confidence: 99%

Review and Outlook of Theoretical Understanding on Pollutants Reaction Mechanism during Chemical Looping Combustion

Ma,

Liu,

Yang

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

Chemical looping combustion (CLC) has emerged as a promising technology for CO 2 capture with low cost and energy penalty. In the CLC system, pollutants containing sulfur, nitrogen, and mercury originating from solid fuels are inevitably generated, which will not only lead to equipment corrosion and environmental problems but also affect the purity of CO 2 captured by CLC. The reaction mechanism of pollutants with oxygen carriers is closely associated with the pollutant removal efficiency of the CLC system. Density functional theory (DFT) calculations have been widely used to reveal the reaction mechanism of pollutants with oxygen carriers at the atomic level. Thus, this work reviews the research progress on the reaction mechanism of different pollutants with oxygen carriers through DFT calculations during chemical looping combustion. The effects of pollutants containing sulfur, nitrogen, and mercury on the reactivity of oxygen carriers are systematically elucidated, and the reaction pathways of pollutants on the oxygen carrier surface are discussed. Furthermore, the influence mechanism of various flue gas components on the interaction between pollutants and oxygen carriers is summarized. Finally, we provide an outlook on the reaction mechanism of pollutants with oxygen carriers during chemical looping combustion.

show abstract

Artificial intelligence methods for modeling gasification of waste biomass: a review

Alfarra,

Ozcan,

Cihan

et al. 2024

Environ Monit Assess

View full text Add to dashboard Cite

The competition/inhibition effect of H2O/CO2-char gasification in typical in situ gasification-chemical looping combustion (iG-CLC) conditions via particle-resolved simulation

Cited by 14 publications

References 41 publications

Water vapor effects on attrition and elemental migration of iron‐based oxygen carrier in chemical looping combustion

Water vapor effects on attrition and elemental migration of iron‐based oxygen carrier in chemical looping combustion

Review and Outlook of Theoretical Understanding on Pollutants Reaction Mechanism during Chemical Looping Combustion

Artificial intelligence methods for modeling gasification of waste biomass: a review

Contact Info

Product

Resources

About