Sindora glabra is an indigenous species in Hainan island, characterized by its exudation of oleoresin. To provide the techniques and references for exploring the oleoresin utilization for fuel oil, six oleoresin samples were extracted during Sept to Dec. In 2009 by perforating the trunk of S. Glabra from three main populations. Physical and chemical properties of the oleoresin and their relationships were analyzed with 16 measured indicators. The result showed that eight indicators, such as solidifying point, flash point, boiling process, gross heat, net heat, iodine value, sulphur content and copper strip corrosion, were relatively stable, the first seven indicators varied ranging between - 27 and -36℃, 114 and 124 ℃ , 248 and 345 ℃ , 42 and 43 MJ·kg-1,40 and 41 MJ·kg-1, 118 and 131 gI2·(100 g)-1 , 0.000 5% and 0. 009 3% , respectively, with copper strip corrosion all same of I,, indicating slight variation of those indicators among oleoresin samples. However, there were significant differences ( P < 0. 01 ) in density, kinematic viscosity, cold filter plugging point, water content, ash, impurities, acid, carbon residue and cetane index among those oleoresin samples, varying from 812 to 957 kg·m-3, 24 to 48 mm2-s·1, 12 to 28℃ , 0.03 to 2.74% , 0.008% to 0. 055% , 0 to 0. 060% , 0. 35 to 2. 23 mgKOH·g-1, 0. 42% to 5. 46% and 25-64, respectively, suggesting there were close relationships among oleoresin samples from different trees. Carbon residue was significantly negatively correlated with flash point (P<0. 01) , but positively correlated with iodine value, ash, cold filter plugging point (P<0. 05). Density was positively correlated with kinematic viscosity and impurities (P <0. 01) , but negatively correlated with cetane index (P < 0. 05 ). Density and carbon residue were the two most important indicators in evaluating physical and chemical properties. In general, the oleoresin had low mobility in low temperature, low spray evaporation, as well as low oxidation stability, but possessed advantages of good engine performance, cleanness, corrosion resistance and renewability,therefore it could be explored as one kind of diesel fuel.%以海南尖峰岭油楠为研究对象,通过树干基部钻孔每个月定期收集树脂油,测定6份不同油样的16项理化指标,综合评价油楠树脂油不同样品间理化特性的变异及其关联.结果表明:树脂油的凝点、闭口闪点、馏程、总热值、净热值、碘值、硫含量和铜片腐蚀等理化指标比较稳定,受产油单株影响较弱,除铜片腐蚀为Ia外,其他7个指标变化范围分别为-27～-36℃,114～124℃,248～345℃,42～43 MJ·kg-1,40～41 MJ·kg-1,118～131 gI2*(100g)-1,0.0005%～0.0093%;树脂油密度、运动黏度、冷滤点、水分、灰分、机械杂质、酸值、10%蒸余物残炭和十六烷指数在不同样品间产生显著变异,并与产油单株紧密关联,其变化幅度为812～957 kg·m(-3),24～48 m㎡·s-1,12～28℃,0.03%～2.74%,0.008%～0.055%,0～0.060%,0.35～2.23 mgKOH·g-1,0.42%～5.46%和25～64;10%蒸余物残炭与闪点存在显著负相关,与碘值、灰分和冷滤点存在显著正相关,密度与运动粘度和机械杂质呈显著正相关、与十六烷指数呈显著负相关,这表明10%蒸余物残炭和密度是树脂油理化特性评价中2大主要指标.树脂油其低温流动性差、雾化蒸发性弱和氧化安定性较差,但具有动力性强、清洁性好、耐腐蚀和可再生等优点,是一种综合性能优良的和可供开发柴油利用的燃料.
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