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Preparation of Blackened Ca-based Composite Particles and Their Carbonation Kinetics Features
  • +1
  • Liang Teng,
  • Yimin XUAN,
  • Xianglei Liu,
  • Yulong Ding
Liang Teng
Nanjing University of Aeronautics and Astronautics
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Yimin XUAN
Nanjing University of Aeronautics and Astronautics
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Xianglei Liu
Nanjing University of Aeronautics and Astronautics
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Yulong Ding
University of Birmingham
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Abstract

The calcium looping thermochemical thermal energy storage is one of the best high-temperature heat storage schemes for 3th concentrating solar power photothermal power, but its application is restricted by the inherent low solar absorptance and poor cyclic stability of CaCO3/CaO. Herein, the solar absorptance of CaCO3 particles is enhanced by doping Mn-Fe oxides, meanwhile, awns of setaria faberis and microcrystalline cellulose are used as bio-templates to generate pores inside the particles. The test results show that the prepared particles possess adequate anti-crushing strength, high cyclic stability, high solar absorption, and high carbonation rate. In addition, the carbonation kinetic equation of the composite porous particles is studied with the influence factors such as CO2 partial pressure, reaction temperature, and particle morphology taken into consideration. is of great significance for the design and regulation of the carbonator achieving highly stable heat output in the CaL thermochemical heat storage system.

Peer review status:UNDER REVIEW

12 Apr 2021Submitted to AIChE Journal
13 Apr 2021Assigned to Editor
13 Apr 2021Submission Checks Completed
23 Apr 2021Reviewer(s) Assigned