Cited by 65Carbon Dioxide Capture TechnologiesThermochemical Biomass Conversion ProcessesAdsorption and biosorption for pollutant removal

Porous carbonaceous materials from hydrothermal carbonization and KOH activation of corn stover for highly efficient CO 2 capture

Shen, Feng, Wang, Yu, Li, Luyang, Zhang, Keqiang, Smith, Richard L., Qi, Xinhua·2018·Chemical Engineering Communications

Abstract

Sustainable biomass-derived carbon materials were produced by hydrothermal carbonization of corn stover that was followed by chemical activation with KOH. The prepared carbon materials were used for CO2 adsorption and had a CO2 uptake of 7.14 mmol/g at a pressure of 1 bar and at 0°C that was much higher than CO2 uptake by activated carbon that was prepared from direct activation of corn stover (2.78 mmol/g). The porous corn stover-derived carbonaceous material had high surface area (2442 m2/g) and large pore volume (1.55 cm3/g). Product yields obtained by the activation of hydrothermally carbonized corn stover were significantly higher than those obtained by the direct activation of corn stover (36–75 vs. 8%). The prepared corn stover-derived porous carbon had a high CO2/N2 selectivity of 15.5 and exhibited constant CO2 uptake for five successive reuse cycles. The hydrothermal carbonization step plays an important role for producing porous carbons from biomass that have high and specific adsorption properties.

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Crossref · 10.1080/00986445.2017.1367671

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Authors
Shen, F., Wang, Y., Li, L., Zhang, K., Smith, R. L., & Qi, X.
Affiliations
  • Agro-Environmental Protection Institute (CN)
  • Nankai University (CN)
  • Tohoku University (JP)
Corresponding author
Qi, Xinhua
Venue
Chemical Engineering Communications
Published
2018-02-08
Volume
205
Issue
4
Pages
423-431
ISSN
  • 0098-6445 (ISSN-L)
  • 1563-5201
OpenAlex
W2747388483
Cited by
65
References
33
Citations by year
2026: 3 · 2025: 12 · 2024: 9 · 2023: 9 · 2022: 8 · 2021: 10 · 2020: 4 · 2019: 6 · 2018: 3 · 2017: 1
FWCI
2.98
Type
journal article
Language
en
Open access
closed
Locations
Chemical Engineering Communications (publishedVersion)
Funders
National Natural Science Foundation of China (No. 21577073)
Topics
  • Physical Sciences › Engineering › Mechanical Engineering › Carbon Dioxide Capture Technologies
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
Keywords
hydrothermal carbonization, KOH activation, corn stover, porous carbon, CO2 capture, CO2 adsorption, biomass-derived carbon, CO2/N2 selectivity, adsorbent reusability, surface area, pore volume

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