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 181m2/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.
Bibliographical noteFunding Information:
This work was performed with the support of the Cooperative Research Program for Agriculture Science & Technology Development (Project No. PJ0079662011), Rural Development Administration, Republic of Korea . The authors would like to thank Dr. Y-H. Moon (RDA) for providing Geodae-Uksae 1 samples.
Copyright 2017 Elsevier B.V., All rights reserved.
- Geodae-Uksae 1
- Slow pyrolysis
ASJC Scopus subject areas
- Environmental Engineering
- Renewable Energy, Sustainability and the Environment
- Waste Management and Disposal