Upgrading fast pyrolysis liquids: Blends of biodiesel and pyrolysis oil
Upgrading fast pyrolysis liquids: Blends of biodiesel and pyrolysis oil
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DOI：
10.1016/j.fuel.2013.02.058
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发表时间：
2013-07-01
期刊：
影响因子：
7.4
通讯作者：
Bridgwater, A. V.
中科院分区：
文献类型：
--
作者：
Alcala, A.;Bridgwater, A. V.
快速热解液体或生物油已用于发动机，但成功有限。它需要引燃燃料和/或添加剂来成功燃烧，并且存在材料和液体性质的问题。它与所有传统的碳氢化合物燃料不混溶。生物柴油是一种植物油与醇酯化的产物，广泛用作可再生液体燃料，作为柴油的添加剂，最高可达20%。然而，由于低温性能差以及各种植物油质量和各种酯化工艺的质量变化，其在常规发动机中的使用受到限制。在欧洲委员会和俄罗斯的联合项目-欧洲生物液体热电联产项目中，开展了一项研究，以开发基于发动机和微型涡轮机的小型热电联产装置，这些发动机和微型涡轮机以快速热解产生的生物液体和植物油甲酯为燃料。对生物油和生物柴油的混合物进行了评估和测试，以克服单独使用任何一种燃料的一些缺点。使用乙醇、1-丁醇或2-丙醇形式的醇作为共溶剂。48 h后目视检查混合物均匀性作为产品稳定性的指标，并将结果绘制在所用每种醇的三相图中。对选定样品进行加速稳定性试验，以预测其长期稳定性。我们的结论是，酒精的类型和数量是关键的共混物的形成和稳定性。使用1-丁醇得到稳定共混物的最广泛选择，其次是与2-丙醇的共混物，最后是乙醇，因此1-丁醇共混物接受混合物中最大比例的生物油。(C)2013爱思唯尔有限公司保留所有权利。
Fast pyrolysis liquid or bio-oil has been used in engines with limited success. It requires a pilot fuel and/or an additive for successful combustion and there are problems with materials and liquid properties. It is immiscible with all conventional hydrocarbon fuels. Biodiesel, a product of esterification of vegetable oil with an alcohol, is widely used as a renewable liquid fuel as an additive to diesel at up to 20%. There are however limits to its use in conventional engines due to poor low temperature performance and variability in quality from a variety of vegetable oil qualities and variety of esterification processes. Within the European Project Bioliquids-CHP - a joint project between the European Commission and Russia - a study was undertaken to develop small scale CHP units based on engines and microturbines fuelled with bioliquids from fast pyrolysis and methyl esters of vegetable oil. Blends of bio-oil and biodiesel were evaluated and tested to overcome some of the disadvantages of using either fuel by itself. An alcohol was used as the co-solvent in the form of ethanol, 1-butanol or 2-propanol. Visual inspection of the blend homogeneity after 48 h was used as an indicator of the product stability and the results were plotted in a three phase chart for each alcohol used. An accelerated stability test was performed on selected samples in order to predict its long term stability. We concluded that the type and quantity of alcohol is critical for the blend formation and stability. Using 1-butanol gave the widest selection of stable blends, followed by blends with 2-propanol and finally ethanol, thus 1-butanol blends accepted the largest proportion of bio-oil in the mixture. (C) 2013 Elsevier Ltd. All rights reserved.