Department of Chemical and Environmental Sciences, University of Limerick, Limerick, Ireland.
Bioresour Technol. 2011 Feb;102(3):3466-70. doi: 10.1016/j.biortech.2010.10.129. Epub 2010 Nov 3.
Miscanthus x giganteus was pyrolysed, in a fixed bed reactor in a constant flow of dinitrogen gas, at a rate of 13°C/min from ambient to 550°C, then held for 25 min at this temperature. The pressures employed ranged from atmospheric to 26 bar. The major compounds identified in the bio-oil were water, phenol, and phenol derivatives. The water contents impact on the usefulness of the bio-oil as a fuel. However, the phenols could provide useful platform chemicals and products. The properties of the char were determined using elemental analyses, surface area measurements using the Brunauer-Emmett-Teller equation, a calorimetric bomb, Scanning Electron Microscopy, and solid state (13)C NMR spectroscopy. The chars were highly carbonised, especially at the higher pressures, and provided thermally stable materials. Pressure impacted greatly on the surface area. Char formed at atmospheric pressure had a surface area of 162 m(2)/g, whereas that from the highest pressure applied was only 0.137 m(2)/g.
荻被热解，在固定床反应器中，以每分钟 13°C 的速率从环境温度到 550°C 进行氮气气流恒流加热，然后在这个温度下保持 25 分钟。所采用的压力范围从大气压到 26 巴。在生物油中鉴定的主要化合物有水、苯酚和苯酚衍生物。水的含量影响生物油作为燃料的有用性。然而，苯酚可以提供有用的平台化学品和产品。使用元素分析、使用 Brunauer-Emmett-Teller 方程的表面积测量、量热弹、扫描电子显微镜和固态 (13)C NMR 光谱法来确定炭的性质。炭高度碳化，特别是在较高的压力下，提供了热稳定的材料。压力对表面积有很大的影响。在大气压下形成的炭的表面积为 162 m(2)/g，而在施加的最高压力下形成的炭的表面积仅为 0.137 m(2)/g。
