煤焦油石油焦浆成浆特性实验研究  

Experimental study on slurrying properties of petroleum coke-coal tar slurries

作　　者：王铭逸 刘建忠[1] 程军[1] 王智化[1] 周俊虎[1] 

机构地区：[1]浙江大学能源清洁利用国家重点实验室,浙江杭州310027

出　　处：《煤炭学报》2017年第6期1585-1590,共6页Journal of China Coal Society

基　　金：国家重点研发计划资助项目(2016YFB0600505)

摘　　要：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%.

关 键 词：煤焦油石油焦浆 添加剂 成浆特性 流变特性 

分 类 号：TQ52[化学工程—煤化学工程]