| 高温高压下油煤浆黏度的变化及影响因素 |
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| 引用本文： | 颜丙峰,史士东,李文博.高温高压下油煤浆黏度的变化及影响因素[J].煤炭学报,2009,34(10):1379-1382. |
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| 作者姓名： | 颜丙峰 史士东 李文博 |
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| 作者单位： | 煤炭科学研究总院 北京煤化工研究分院，北京，100013 |
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| 基金项目： | 国家重点基础研究发展计划（973)基金资助项目(2004CB217601) |
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| 摘 要： | 为研究高温高压下油煤浆的黏温特性及变化机理，测量了220~450 ℃范围内的煤浆黏度，发现在250 ℃以前，黏度的增大主要受煤颗粒溶胀作用的影响，而在340 ℃以后，黏度的增加则是由于前沥青烯的增多引起的.剪切速率对黏度几乎没有影响.当煤转化率在30%~40%时，煤浆黏度会增加.
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| 关 键 词： | 高温高压 油煤浆 黏度 转化率 |
| 收稿时间： | 2008-12-25 |
The changes and influence factors of viscosity of coal oil slurry in high temperature and high pressure |
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| Abstract: | The characteristics and mechanism of viscosity accompanied with temperature of coal-oil slurry in high temperature and high pressure were studied. The viscosity of coal-oil slurry between temperature 220 ℃and 450 ℃ was measured. Viscosity increased before 250 ℃ is due to coal swelling, while above 340 ℃ is due to the increase of preasphaltene. The sheering speeds have little influence on viscosity. When the conversion ratio of coal is between 30% and 40%, the viscosity will increase. |
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| Keywords: | high temperature and high pressure coal-oil slurry viscosity conversion ratio |
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