从凤尾蕨的水热液化中生产生物油：操作温度和能量回收的影响。
Bio-oil production from hydrothermal liquefaction of Pteris vittata L.: Effects of operating temperatures and energy recovery.
机构信息
Institute of Energy and Environmental Engineering, Ningbo Institute of Technology, Zhejiang University, Ningbo 315000, China; Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China.
出版信息
Bioresour Technol. 2018 Oct;265:320-327. doi: 10.1016/j.biortech.2018.06.019. Epub 2018 Jun 15.
Hyper-accumulator biomass, Pteris vittata L., was hydrothermally converted into bio-oils via hydrothermal liquefaction (HTL) in sub-supercritical water. The distributions and characterizations of various products as well as energy recovery under different temperatures (250-390 °C) were investigated. The highest bio-oil yield of 16.88% was obtained at 350 °C with the hydrothermal conversion of 61.79%, where the bio-oil was dominated by alcohols, esters, phenols, ketones and acidic compounds. The higher heating values of bio-oil were in the range of 19.93-35.45 MJ/kg with a H/C ratio of 1.26-1.46, illustrating its high energy density and potential for use as an ideal liquid fuel. The main gaseous products were CO, H, CO, and CH with the H yield peaking at 22.94%. The total energy recovery from bio-oils and solid residues fell within the range of 37.72-45.10%, highlighting the potential of HTL to convert hyper-accumulator biomass into valuable fuels with high conversion efficiency.
凤尾蕨的超积累生物量在亚临界面条件下水热液化（HTL）转化为生物油。考察了不同温度（250-390℃）下各种产物的分布和特性以及能量回收情况。在 350℃时，水热转化率为 61.79%，生物油收率最高，达到 16.88%，其中生物油主要由醇、酯、酚、酮和酸性化合物组成。生物油的高位发热量在 19.93-35.45 MJ/kg 之间，H/C 比为 1.26-1.46，说明其具有较高的能量密度和作为理想液体燃料的潜力。主要的气态产物是 CO、H、CO 和 CH，H 的产率最高可达 22.94%。生物油和固体残渣的总能量回收率在 37.72-45.10%之间，这表明 HTL 具有将超积累生物质转化为高转化率、高附加值燃料的潜力。
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