Biological System Engineering Department, Washington State University, Pullman, WA 99164-6120, USA.
Bioresour Technol. 2010 Aug;101(15):6219-24. doi: 10.1016/j.biortech.2010.03.002. Epub 2010 Mar 21.
This paper describes the use of Differential Scanning Calorimetry (DSC) to evaluate the impact of varying mix ratios of bio-oil (pyrolysis oil) and bio-diesel on the oxidation stability and on some cold flow properties of resulting blends. The bio-oils employed were produced from the semi-continuous Auger pyrolysis of pine pellets and the batch pyrolysis of pine chips. The bio-diesel studied was obtained from poultry fat. The conditions used to prepare the bio-oil/bio-diesel blends as well as some of the fuel properties of these blends are reported. The experimental results suggest that the addition of bio-oil improves the oxidation stability of the resulting blends and modifies the crystallization behavior of unsaturated compounds. Upon the addition of bio-oil an increase in the oxidation onset temperature, as determined by DSC, was observed. The increase in bio-diesel oxidation stability is likely to be due to the presence of hindered phenols abundant in bio-oils. A relatively small reduction in DSC characteristic temperatures which are associated with cold flow properties was also observed but can likely be explained by a dilution effect.
本文介绍了使用差示扫描量热法（DSC）评估不同生物油（热解油）和生物柴油混合比例对所得混合物氧化稳定性和一些冷流性能的影响。所使用的生物油是由松木颗粒的半连续螺旋热解和松木屑的分批热解产生的。研究用的生物柴油是从禽脂中获得的。报告了制备生物油/生物柴油混合物的条件以及这些混合物的一些燃料特性。实验结果表明，添加生物油可提高所得混合物的氧化稳定性，并改变不饱和化合物的结晶行为。通过 DSC 测定，观察到添加生物油后氧化起始温度升高。生物柴油氧化稳定性的提高可能归因于生物油中丰富的受阻酚。还观察到与冷流性能相关的 DSC 特征温度的相对较小降低，但可能可以通过稀释效应来解释。
