School of Mechanical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea.
Bioresour Technol. 2013 Feb;130:345-50. doi: 10.1016/j.biortech.2012.12.012. Epub 2012 Dec 13.
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.
本研究旨在利用 Geodae-Uksae 1 生产生物炭，用于土壤应用，以从大气中固碳并提高作物产量。使用实验室规模的填充床反应器，在 300-700°C 的温度范围内，以 10°C/min 的加热速率，对 Geodae-Uksae 1 的热解产物进行了研究。考虑到炭的性质和所需的热量，在 500°C 下进行热解，有利于生物炭的生产。该过程产生了 27.2wt.%的生物炭，其中含有原始生物质中约 48%的碳。生物炭的比表面积迅速增加到 181m(2)/g。由于母体生物质的脉管细胞结构，生物炭内部形成了直径为 5-40μm 的大圆柱形孔。还对副产品（生物油和气体）进行了分析，以用作燃料。
