Thermodynamic characteristics and mineral dissolution model of the H2O-CO2-CaCO3-Albite-SiO2 system in sedimentary basins

Meng, Wei; Sui, Fenggui; Hao, Xuefeng; Zhang, Shoupeng; Jiang, Yue; Wu, Songbai; Zhang, Tianjiao; Feng, Yi

doi:10.1016/j.fuel.2021.121992

Fuel

2022

DOI: 10.1016/j.fuel.2021.121992

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Thermodynamic characteristics and mineral dissolution model of the H2O-CO2-CaCO3-Albite-SiO2 system in sedimentary basins

Wei Meng

Fenggui Sui

Xuefeng Hao

et al.

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Cited by 3 publications

References 39 publications

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Optimized structural parameters and heat extraction capacity of a mixing device for constant pressure CO2 mineralization using alkaline waste

Yang

et al. 2022

Environ Sci Pollut Res

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Alkaline waste such as calcium carbide slag is an ideal material for mineralizing CO 2 and promoting atmospheric carbon reduction. In this study, the structural parameters of a mixing device and a thermal extraction method for the high-e ciency mineralization of CO 2 using alkaline waste were optimized. First, the effects of various factors including the length-diameter ratio, blade inclination angle, spacing, and diameter in constant-pressure and continuous-feed systems on the degree of CO 2 mineralization using carbide slag and on the extraction of the reaction heat during the mineralization process were investigated through experiments and numerical simulations. The in uence of different con gurations of the heat pipe and the internal uid ow rate on extraction of the reaction heat was explored. The in uence of different factors on the mineralization e ciency and heat extraction ability was analyzed based on the orthogonal simulation method. When the length-diameter ratio, blade inclination angle, spacing, and diameter of the mixing device were 3, 15, 6 cm, and 14 cm respectively, and a heat pipe was used, the heat extraction during calcium carbide slag (alkaline waste) mineralization of CO 2 was at a maximum. In addition, the winding con guration of the heat pipe, which is bene cial for extracting more reaction heat, was optimal, and a model of the relationship between the heat pipe outlet water temperature and ow velocity at the outlet of the heat pipe was established. This study provides theoretical guidance for the eld application of alkaline waste for high-e ciency mineralization of CO 2 , which can accelerate the realization of peak CO 2 emissions and carbon neutrality.

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Optimized structural parameters and heat extraction capacity of a mixing device for constant pressure CO2 mineralization using alkaline waste

Yang

et al. 2022

Environ Sci Pollut Res

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Evolution processes and diagenetic response of paleo-pore fluids in continental rift basin: A case study of Bonan Sag

Meng,

Niu,

Jiang

et al. 2024

Geoenergy Science and Engineering

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Thermodynamic mechanism and its geological significance in the transformation of albite under inorganic acid environments based on the total dissolution model

Meng¹,

Sui²,

Zhang³

et al. 2023

Geoenergy Science and Engineering

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Thermodynamic characteristics and mineral dissolution model of the H2O-CO2-CaCO3-Albite-SiO2 system in sedimentary basins

Cited by 3 publications

References 39 publications

Optimized structural parameters and heat extraction capacity of a mixing device for constant pressure CO2 mineralization using alkaline waste

Optimized structural parameters and heat extraction capacity of a mixing device for constant pressure CO2 mineralization using alkaline waste

Evolution processes and diagenetic response of paleo-pore fluids in continental rift basin: A case study of Bonan Sag

Thermodynamic mechanism and its geological significance in the transformation of albite under inorganic acid environments based on the total dissolution model

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