Abstract Bio-oil production from renewable sources has been seen as suitable alternative to supply future energy demand. Perennials grasses are currently being developed as a suitable second-generation biofuel feedstock. It has advantages such as rapid growth rate, easy to grow, minimal maintenance and utilise marginal land without competing with food supply. Taking into account of the various challenges attributed to the transformation of second-generation biomass for energy production, this work systematically looks at the ecological perspective and the availability for bioenergy production from Imperata Cylindrica in Brunei Darussalam. Biomass characterisation was carried out to determine the properties and energy content, meanwhile py-GC/MS study was conducted to identify building blocks of value-added chemical from I. cylindrica. The physicochemical properties of feedstock was thoroughly evaluated using thermogravimetric analysis, proximate analysis, elemental analysis, compositional analysis, calorific value, and analytical pyrolysis interfaced with gas chromatograph (Py-GC/MS). Characterisation results indicate that Imperata Cylindrica has a calorific value of 18.39 MJ/kg, with low ash content and high percentage of volatile matter. Py-GC/MS analysis revealed the presence of furfural, 2,3-dihydrobenzofuran, 4-vinylguaiacol, propenylguaiacol, guaiacol and 4-ethylphenol. The fixed-bed pyrolysis experiment of imperata cylindrica showed that the yield of bio-oil increases with the increase of temperature and it reached a peak of 37.16% at 500 °C. These results show that Imperata Cylindrica is suitable as feedstock for bio-oil production via pyrolysis process.

中文翻译：

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作为文莱达鲁萨兰国生物油生产潜在生物质的白茅根的表征和 Py-GC/MS 分析

摘要 从可再生能源生产生物油已被视为满足未来能源需求的合适替代品。目前正在开发多年生草作为合适的第二代生物燃料原料。它具有生长速度快、易于种植、维护成本低和利用边际土地而不与粮食供应竞争等优点。考虑到将第二代生物质转化为能源生产所带来的各种挑战，这项工作系统地研究了文莱达鲁萨兰国白茅草的生态视角和生物能源生产的可用性。进行生物质表征以确定特性和能量含量，同时进行 py-GC/MS 研究以识别来自 I. cylindrica 的增值化学品的组成部分。使用热重分析、近似分析、元素分析、成分分析、热值和与气相色谱仪 (Py-GC/MS) 接口的分析热解，对原料的理化性质进行了彻底评估。表征结果表明白茅的热值为18.39 MJ/kg，灰分含量低，挥发分含量高。Py-GC/MS 分析显示存在糠醛、2,3-二氢苯并呋喃、4-乙烯基愈创木酚、丙烯基愈创木酚、愈创木酚和 4-乙基苯酚。白茅根的固定床热解实验表明，生物油的产率随着温度的升高而增加，在500℃时达到37.16%的峰值。这些结果表明白茅根适合作为热解法生产生物油的原料。