新疆煤水分含量高不宜制取水煤浆,但因其灰分含量低,用其制备油水煤浆有广阔的应用前景.实验研究了新疆煤制油水煤浆的成浆条件,以及不同条件下煤浆的性能.实验结果表明,以木质素磺酸钠为分散剂,聚丙烯酰胺10000为稳定剂,煤粉50g,柴油23mL,水26mL时,制取的油水煤浆的静态稳定性和黏度最佳.以十二烷基苯磺酸钠和月桂醇聚氧乙烯醚按1:1进行复配制取的煤浆比使用单一分散剂制取的煤浆效果要好.
Xinjiang coal is hard for the preparation of coal-water slurry for its high mois- ture content. Due to Xinjiang coal's low ash content, there will be a broad application prospects to prepare oil-coal slurry with it. The preparation conditions and the performance under different conditions of Xinjiang oil-coal slurry were studied. The results show that. when using sodium lignosulphonate as dispersant and polyacrylamide 10000 as stabilizer, pulverized coal is 50 g, diesel is 23 mL, water is 26 mL, the oil-coal slurry has the lowest apparent viscosity and the best stability. The performance of the oil-coal slurry prepared with composite dispersant which was made by SDBS and ethoxylated dodecylalcohol in accordance with the ratio of 1 : 1 is better than that with a single dispersant.