Department of Environmental Engineering, National Cheng Kung University, Tainan 701, Taiwan, ROC.
Bioresour Technol. 2012 Nov;123:98-105. doi: 10.1016/j.biortech.2012.07.096. Epub 2012 Aug 2.
Torrefaction is a pretreatment method for upgrading biomass as solid fuels. To provide flexible operations for effectively upgrading biomass at lower costs, the aim of this study was to investigate the properties of oil palm fiber and eucalyptus pretreated in nitrogen and air atmospheres at temperatures of 250-350°C for 1h. Based on energy and solid yield and introducing an energy-mass co-benefit index (EMCI), oil palm fiber pretreatment under nitrogen at 300°C provided the solid fuel with higher energy density and less volume compared to other temperatures. Pretreatment of oil palm fiber in air resulted in the fuel with low solid and energy yields and is therefore not recommended. For eucalyptus, nitrogen and air can be employed to upgrade the biomass, and the suggested temperatures are 325 and 275°C, respectively.
热解是一种将生物质升级为固体燃料的预处理方法。为了提供灵活的操作，以更低的成本有效地升级生物质，本研究的目的是研究在 250-350°C 的氮气和空气气氛中预处理 1 小时的油棕纤维和桉树的特性。基于能量和固体产率，并引入能量-质量共同效益指数（EMCI），与其他温度相比，在 300°C 的氮气下预处理油棕纤维可提供具有更高能量密度和更小体积的固体燃料。在空气中预处理油棕纤维会导致固体和能量产率低，因此不建议使用。对于桉树，可以使用氮气和空气来升级生物质，建议的温度分别为 325°C 和 275°C。
