热解干馏法测定油砂的含油率

采用铝甑低温干馏方法对新疆克拉玛依油砂样品进行了含油率的测定，并考察了油砂粒径、升温速率、干馏终温、持温时间等因素对油砂含油率测定结果的影响。结果表明，热解干馏法测定油砂含油率的最佳操作条件是：粒径3～5 mm，升温速率15 ℃/min，干馏终温500 ℃，持温时间20 min。以二甲苯为溶剂进行水分的蒸馏分离，油水分离效果较好。测定结果与常用的Dean-Stark甲苯抽提法的测定结果十分接近。

MEASURING THE POTENTIAL OIL YIELD OF OIL SAND BY FISCHER ASSAY RETORTING METHOD

The potential oil yield of Karamay oil sand was measured on a Fischer assay retort, and the effect of factors, such as oil sand particle size, heating rate, final retorting temperature and retorting time, on the determination result was investigated. As a result, the optimum conditions of measuring the oil yield of oil sand were obtained as follows: the particle sizes of oil sands should be in the range of 3～5mm, using a heating rate of 15℃/min, the final retorting temperature was 500℃ and maintaining at 500℃ for 20 min. It was also found that satisfied result of water extraction was obtained by using xylene as solvent. Test results showed that the determination results of this method were in good agreement with the conventional Dean-Stark toluene extraction method.