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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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褐煤与石油焦的共成浆特性及机理
, PP. 92-97
Keywords: 石油焦,褐煤焦浆,表面特性,表面张力,zeta电位,成浆性,稳定性
Abstract:
以阴离子表面活性剂亚甲基萘磺酸钠？苯乙烯磺酸钠？马来酸钠作为分散剂，分别对2种褐煤与1种石油焦的共成浆性进行实验研究，考察褐煤焦浆表面特性与成浆特性的内在关系。结果表明：随着煤焦比的增加，浆体表面张力变大，成浆浓度降低，表面张力与成浆性之间存在定性关系，降低表面张力有利于成浆浓度的提高；褐煤的加入使水焦浆由胀流性流体转变为假塑性流体，且煤焦比越大，浆体的假塑性特征越强；随着煤焦比的增加，浆体zeta电位绝对值增加，颗粒表面荷电量增大，浆体稳定性提高；当煤焦比为2∶3时，可获得成浆浓度高于60%、析水率低于5%的假塑性浆体燃料。
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