在预设的超声条件下对不同煤-油共炼原料进行预处理,并在相同的反应条件下使用实验室自制的铁系催化剂进行煤-油共炼反应,考察煤液化率的变化,对液体产物进行元素和馏程分析以及对固体产物进行工业四组分分析,确定超声波预处理对煤-油临氢共炼的影响.结果表明:经过超声波预处理后,共炼原料结构发生改变,分别对油浆及使用安徽煤与油浆所配油煤浆进行超声处理,再进行共炼反应,安徽煤的液化率分别提高9.85％和12.42％;分别对煤焦油及对使用安徽煤与煤焦油所配油煤浆进行超声处理,再进行共炼反应,安徽煤的液化率分别提高7.99％和18.65％,固体产物的灰分、挥发分降低,固定碳含量增加,质量有所提高;液体产物的馏程分布基本没有改变,达到了在提高煤液化率的同时、保证共炼产物质量不变的目的.%Coal-oil co-hydroprocessing pretreatment experiment proceeded by using lab's self-made iron-based catalyst to figure out the coal liquefaction rate.Analysis of liquid products,especially on its proceeding elemental and distillation range distribution was made.Industrial four component analysis of solid products was also made and the effect of ultrasonic pretreatment on coal-oil co-hydroprocessing was obtained.The results show that the structure of co-processing raw materials has changed through ultrasonic pretreatment.Liquefaction rate of Anhui coal has improved by 9.85％ and 12.42％ after processing oil slurry by ultrasonic and compounding oilcoal slurry with oil slurry respectively.Similarly,to the coal tar after ultrasonic treatment and oil-coal slurry compounded by oil-coal slurry,by using same sample,liquefaction rate has improved by 7.99％ and 18.65％ respectively.Obviously,ash content and volatile matter in solid product have decreased,and fixed carbon has improved after processing,while the distillation range distribution of liquid products has been basically stable.The coal liquefaction rate has improved and the quality of co-processing products remains unchanged.
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