A high adsorption capacity bamboo biochar for CO2 capture for low temperature heat utilization

Y. Ji, C. Zhang, X. J. Zhang, P. F. Xie, C. Wu*, L. Jiang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)
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Abstract

Due to burgeoning carbon dioxide (CO2) emission, adsorption post-combustion capture technology gathers momentum. Cost-effective adsorbents with prominent performance draw more attention. Thus, a novel KOH activation biomass-derived activated carbon, i.e. BBC-KOH, is developed and investigated in terms of textural properties, adsorption/desorption temperatures, desorption heat and cyclic stability. A techno-economic assessment of a solar-assisted coal-fired power plant integrated with temperature swing adsorption process is conducted to evaluate potential merits in a practical application. Results demonstrate that BBC-KOH could perform an excellent adsorption capacity (1.50 mmol·g−1 at 25 °C) with a low desorption temperature (1.42 mmol·g−1 at 70 °C) and could be desorbed completely at 80 °C, i.e. 1.54 mmol·g−1. Compared with solar-assisted coal-fired power plant systems using monoethanolamine and polyethyleneimine/silica, carbon emission intensity, levelized cost of electricity and cost of CO2 removed of the system using BBC-KOH always show the best performance, corresponding to 93.22 g·kWh−1, 59.19 USD·MWh−1 and 14.12 USD·tonCO2-1, respectively. It reveals that BBC-KOH may be a potential solution to carbon capture with low capital cost, low regeneration temperature and excellent adsorption capacity.

Original languageEnglish
Article number121131
JournalSeparation and Purification Technology
Volume293
Early online date25 Apr 2022
DOIs
Publication statusPublished - 15 Jul 2022

Bibliographical note

Funding Information:
This research was supported by the National Natural Science Foundation of China under contract number (51976178) and Engineering and Physical Science Research Council of UK (EP/N024567/1). This project has received funding from the European Union's Horizon 2020 research and innovation programme under the Marie Sk?odowska-Curie grant agreement No 823745. We also like to thank Prof. Bin Li and PhD candidate Enyu Wu for adsorption testing.

Funding Information:
This research was supported by the National Natural Science Foundation of China under contract number ( 51976178 ) and Engineering and Physical Science Research Council of UK ( EP/N024567/1 ). This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 823745. We also like to thank Prof. Bin Li and PhD candidate Enyu Wu for adsorption testing.

Publisher Copyright:
© 2022 Elsevier B.V.

Keywords

  • Bamboo biochar
  • High adsorption capacity
  • Low regeneration temperature
  • Solar energy

ASJC Scopus subject areas

  • Analytical Chemistry
  • Filtration and Separation

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