Department of Environment and Energy, Sejong University, Seoul, 05006, Republic of Korea.
Department of Environment and Energy, Sejong University, Seoul, 05006, Republic of Korea.
Environ Pollut. 2020 Nov;266(Pt 2):115377. doi: 10.1016/j.envpol.2020.115377. Epub 2020 Aug 9.
As demand of proteins from meats has significantly increased with economy growth, the population of livestock proliferates. Thus, heavy amount of livestock byproducts released from livestock industries will become more problematic if they are handled in an unsatisfactory manner. In this study, swine manure (SM) waste was directly valorized to be used as a reaction catalyst for biodiesel production. Pyrolysis was adapted to produce swine manure biochars at 500 (SMB@500) and 650 °C (SMB@650), and the materials were used for conversion of waste cooking oil into biodiesels (i.e., fatty acid methyl esters: FAMEs). The properties of SMBs and resulting pyrolytic gases (i.e., H, CO, and C hydrocarbons (HCs)) and liquids during pyrolysis were also characterized. SMBs used in this study included a large quantity of metallic contents that significantly contributed to the rapid reaction for biodiesel production. In detail, SMB@500 and SMB@650 showed higher than 96% of FAME yield at 305 and 210 °C of reaction temperature, while non-catalytic reaction using SiO showed similar FAME yield at 330 °C. Thus, this work offers a sustainable way to recycle organic and inorganic materials in livestock manures for energy (biodiesel, pyrolytic oil, H, and C HCs) production.
随着经济增长对肉类蛋白质的需求大幅增加，牲畜数量也在迅速增加。因此，如果牲畜产业以令人不满意的方式处理这些副产品，将会产生更多的问题。在本研究中，猪粪（SM）废物被直接转化为生物柴油生产的反应催化剂。通过热解将猪粪生物炭在 500（SMB@500）和 650°C（SMB@650）下进行转化，并用这些材料将废弃食用油转化为生物柴油（即脂肪酸甲酯：FAMEs）。还对 SMB 及其在热解过程中产生的热解气体（即 H、CO 和 C 烃（HCs））和液体的性质进行了表征。本研究中使用的 SMB 包含大量金属物质，这些物质对生物柴油生产的快速反应有很大的贡献。具体来说，SMB@500 和 SMB@650 在 305 和 210°C 的反应温度下，FAME 的产率均高于 96%，而使用 SiO 进行的非催化反应在 330°C 时也具有相似的 FAME 产率。因此，这项工作为从牲畜粪便中回收有机和无机材料以生产能源（生物柴油、热解油、H 和 C 烃）提供了一种可持续的方法。
