Characteristics of biochar produced from slow pyrolysis of Geodae-Uksae 1
Abstract
This study investigated producing biochar from Geodae-Uksae 1 for soil applications to sequestrate carbon from the atmosphere and improve the productivity of crops. Using a lab-scale packed bed reactor, pyrolysis products of Geodae-Uksae 1 were produced over a temperature range of 300-700°C with a heating rate of 10°C/min. Pyrolysis at 500°C was found appropriate for biochar production considering the properties of char and the amount of heat required. It yielded biochar of 27.2wt.% that contained approximately 48% carbon in the raw biomass. The surface area of the biochar rapidly increased to 181m(2)/g. Large cylindrical pores with diameters of 5-40μm developed within the biochar due to the vascular cell structure of the parent biomass. The byproducts (bio-oil and gases) were also analyzed for use as fuel.
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The alkalinity of biochar depends on organic functional groups, carbonate content, and inorganic alkali content.
“The alkalinity of biochar depends on three important factors: a) organic functional groups; b) carbonate content, and c) inorganic alkali content (Lee et al. 2013).”
From Biochar and its importance on nutrient dynamics in soil and plant (2020) · cites this paper as Lee et al. 2013
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References 31 · Cited by 212
- Authors
- Lee, Y., Eum, P.-R.-B., Ryu, C., Park, Y.-K., Jung, J.-H., & Hyun, S.
- Affiliations
- Sungkyunkwan University (KR)
- University of Seoul (KR)
- Korea University (KR)
- Corresponding author
- Ryu, Changkook
- Venue
- Bioresource Technology
- Publisher
- Elsevier BV
- Published
- 2013-02
- Volume
- 130
- Pages
- 345-350
- ISSN
- 0960-8524 (ISSN-L)
- OpenAlex
- W2069087109
- Cited by
- 212
- References
- 31
- Citations by year
- 2026: 21 · 2025: 20 · 2024: 19 · 2023: 23 · 2022: 13 · 2021: 18 · 2020: 16 · 2019: 17 · 2018: 8 · 2017: 17 · 2016: 9 · 2015: 12 · 2014: 13 · 2013: 6
- FWCI
- 5.65
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Bioresource Technology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Cooperative Research Program for Agriculture Science & Technology Development
- Rural Development Administration, Republic of Korea
- Topics
- Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
- Life Sciences › Agricultural and Biological Sciences › Soil Science › Soil Carbon and Nitrogen Dynamics
- Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
- Keywords
- biochar, slow pyrolysis, carbon sequestration, soil amendment, crop productivity, fixed-bed reactor, bio-oil, pyrolysis gas, pore structure, biomass-derived carbon
- MeSH terms
- Charcoal, Fertilizers, Gases, Poaceae, Biofuels
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