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  • Title: Characteristics of biochar produced from slow pyrolysis of Geodae-Uksae 1.
    Author: Lee Y, Eum PR, Ryu C, Park YK, Jung JH, Hyun S.
    Journal: Bioresour Technol; 2013 Feb; 130():345-50. PubMed ID: 23313679.
    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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