State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou　 310027,China

通过研究煤焦油石油焦浆的成浆特性、流变性以及稳定性,考虑了浆体温度和添加剂对油焦浆成浆特性的影响。随浆体温度的升高,油焦浆的黏度逐渐下降。往浆体中加入了十二烷基苯磺酸钠或op乳化剂后,浆体的黏度随温度的升高下降更加迅速。当石油焦浓度小于30%时,浆体呈现出剪切变稠的胀塑性流体特性;随浓度的增大,当浓度大于40%的情况下,浆体呈现出剪切变稀的假塑性流体特性。油焦浆的稳定性较差,通过加入十二烷基苯磺酸钠或op乳化剂,可以使浆体在静置3 d和7 d后仍保持较好的流动性和稳定性,但随浆体浓度的增大,稳定性能会降低,特别是当石油焦浓度超过50%后,浆体将无法稳定保存3 d以上。

This study focused on the co-slurrying properties of petroleum coke and coal tar,considering the effect of slurry temperature and additives. With the increase of slurry temperature,the viscosity of the petroleum coke-coal tar slurry was decreased. Adding some additives into the slurry made the decrease of the slurry viscosity more remarkable while the slurry temperature increased. The petroleum coke-coal tar slurry exhibited a shear-thickening when the solid concentration was less than 30% ,while it showed a shear thinning when the solid concentration exceeded 40% . The static stability of the petroleum coke-coal tar slurry was poor and could be improved by adding SDBS or op emulsifier. With the increase in the solid concentration,the static stability of the petroleum coke-coal tar slurry became poorer. It was difficult for the petroleum coke-coal tar slurry to be steadily stored for more than three days,especially when the solid concentration was over 50% .

国家重点研发计划资助项目(2016YFB0600505)；

Wang Mingyi,Liu Jianzhong,Cheng Jun,et al. Experimental study on slurrying properties of petroleum coke-coal tar slurries[J]. Journal of China Coal Society,2017,42(6):1585-1590.