Abstract Details
133 / 2024-02-26 18:57:46
Effect of potassium feldspar loading on attrition resistance and reactivity of oxygen carriers in chemical looping combusition
Chemical looping combustion; Oxygen carrier; Attrition resistance; Bridgetoughening; Mineral lattice skeleton
Draft Accepted
Chemical looping combustion (CLC) is considered to be one of the most promising CO2 capture technologies, and oxygen carrier is the key to CLC. However, the cleavage plane of a single oxygen carrier is not conducive to the dissipation of impact energy, which makes the oxygen carrier face the problem of attrition. In this study, the iron ore was used as the carrier, and the potassium feldspar with ductile creep characteristics was used as the toughness-enhanceing material. The effects of the loading methods and loading amount of potassium feldspar on the attrition resistance and activity were studied. The results show that solid-solid co-fluidization (SF) is superior to premixed calcination (PC). When the mass fraction of potassium feldspar is controlled at about 0.5%, the best toughening effect can be achieved on oxygen carriers. And the reactivity of 0.5% can be increased by 41.39% compared with OC. The characterization results show that the fiber structure exists in the sample with a mass fraction of 0.5%, the fiber structure was interspersed in the skeleton defect to form a skeleton bridge. The end effect was used to disperse the consumption of fracture energy, which induces crack deflection and closure.
Important Date
-
Conference Date
May 29
2024
toJun 01
2024
-
May 08 2024
Draft paper submission deadline
Sponsored By
China University of Mining and Technology
Previous Conferences
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2027-05-23 China 徐州市(Xuzhou)
第十一届能源、资源、环境与可持续发展国际会议 -
2022-05-26 China 徐州市
The 9th International Conference on Energy, Resources, Environment and Sustainable Development -
2019-05-31 China Xuzhou
International Conference on Energy, Resources, Environment and Sustainable Development
