Preparation and properties of methanol–diesel oil emulsified fuel under high-gravity environment
Preparation and properties of methanol–diesel oil emulsified fuel under high-gravity environment
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DOI：
10.1016/j.renene.2010.11.007
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发表时间：
2011-05
期刊：
影响因子：
8.7
通讯作者：
Youzhi Liu;Weizhou Jiao;Guisheng Qi
中科院分区：
文献类型：
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作者：
Youzhi Liu;Weizhou Jiao;Guisheng Qi
提出了一种用旋转填充床制备甲醇柴油乳化燃料的新工艺。讨论了添加剂用量、甲醇含量、转速、柴油液体流量等因素对体系流变特性、表面张力和稳定性的影响。结果表明，乳化油呈近似牛顿流体行为。乳液的流变特性显着依赖于表面活性剂和甲醇的百分比。随着表面活性剂用量的增加，表面张力明显降低。添加量越大、甲醇含量越低、转速越高、液体流量越大，乳化燃料的稳定性越好。与间歇运行相比，在超重力场下连续循环3次，乳化油在32天内达到稳定。该方法具有表面活性剂含量低、连续性好、操作效率高、易于放大等优点，在工业领域具有潜在的应用价值。
A new process for preparation of methanol–diesel emulsified fuel with a rotating packed bed is proposed. The influence of additive amount, methanol content, rotational speed, liquid flow rate of diesel on the rheological characteristics, surface tension and stabilization was discussed. The result showed that the emulsified fuel appeared as proximately Newtonian behavior. The rheological characteristics of the emulsions were significantly dependent on the percentages of surfactants and methanol. The surface tension decreased obviously with the increase of the surfactants amount. With higher additive amount, lower methanol content, higher rotational speed and higher liquid flow rate, the methanol–diesel emulsified fuel showed better stabilization. Comparison with intermission operation, the stabilization of the emulsified fuel was achieved in 32 days with consecutive recycle of 3 times under the high-gravity fields. This method has potential application in industrial fields for its low surfactants, continuity, efficient processing and the ease of scaling-up.