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运用核磁共振手段,揭示了浆体中水的形态及其动态行为,并研究浆体性质与之的关联.实验测得神府煤-石油焦-水浆(CPCWS)中水质子的化学位移与煤焦中煤的百分含量的线性关系.并从NMR测得束缚水的化学位移δb,导出计算浆体中束缚水百分含量的公式.从CPCWS中水质子的化学位移与浆体表观粘度的相关曲线可确定最佳配比的浆体.测得全焦浆中水质子自旋-晶格驰豫时间T1比全煤浆大42倍,讨论了CPCWS的T1随煤含量的变化趋势.实验表明,T1可作为CPCWS中碳质点的疏水或亲水性以及水分子形态和动态行为的定量表征.
By means of NMR, the morphology and dynamic behavior of water in the slurry were revealed, and the relationship between the properties of the slurry was studied.The chemical shifts of water proton in the Shenfu coal-petroleum coke-water slurry (CPCWS) Coal coke coal content of the linear relationship between NMR and measured chemical bound irreducible water δb, derive the formula to calculate the bound water content of the slurry slurry from CPCWS chemical shifts of water proton and slurry apparent Viscosity correlation curve can determine the best proportion of the slurry measured in the whole coke slurry water proton spin-lattice relaxation time T1 42 times larger than the whole coal slurry, discusses the CPCWS T1 with coal content trends Experiments show that T1 can be used as a quantitative characterization of hydrophobic or hydrophilic carbonaceous particles in CPCWS as well as water molecule morphology and dynamic behavior.