中文摘要：

以中温煤沥青为原料,采用冷冻粉碎方法制得具有一定粒度级配的煤沥青粉后,再加入适量分散剂与去离子水、自来水和焦化废水分别制备煤沥青水浆.考察了分散剂用量与煤沥青水浆流变性的关系,并对分散剂在煤沥青表面的吸附和Zeta电位进行了研究.研究表明,三种水均能制得浆体浓度为70％的煤沥青水浆,且浆体的表观黏度均随剪切速率的增加呈下降趋势.由去离子水、自来水和焦化废水制得煤沥青水浆的低位发热量、挥发分和灰分均达水煤浆Ⅰ级标准,硫分达Ⅱ级标准.三种水的分散剂溶液在煤沥青表面的吸附量和Zeta电位均随分散剂浓度的增加呈增大趋势,当分散剂浓度达到一定值后继续增加分散剂的浓度,吸附量和Zeta电位稍有下降,且吸附量和Zeta电位达到最大时对应的分散剂浓度基本相同.

英文摘要：

The coal pitch water slurry was separately prepared using deionized water, tap water and coking waste water with surfactants and coal pitch powder, which prepared with medium temperature pitch by cryogenic grinding. Dependence of rheology of slurry on surfactants was discussed, then the absorption of surfactants and Zeta potential on coal pitch surface was investi- gated. The results showed that coal pitch water slurry with concentration of 70% could be all prepared by the three kinds of water, and apparent viscosity of slurry declined when shearing rate increased. Lower heating value, volatile and ash content of coal pitch water slurry that prepared by deionized water, tap-water and coking waste water could all meet Level 1, while sulfur content meet Level 2. Absorption of surfactants and Zeta potential growed at first, then fell slightly with increase of dispersants concentration.