CAJ | 학술논문

为理解双亲分子对石油沥青质甲苯溶液巾沥青质胶团形状、溶剂化程度以及颗粒间相互作用的影响,测定了其甲苯溶液的黏度,采用Pals-Rhodes方程、Eiler方程、Kuhn-Kuhn方程和Leighton-Acrivos方程关联了黏度与体积分数之间的关系.由Pals-Rhodes方程得到的形状参数α和溶剂化参数K表明.在沥青质甲苯溶液中沥青质胶用为球形.添加双亲分子后其溶剂化程度增加,但其形状仍为球形.由Eiler方程分析表明,沥青质甲苯溶液添加双亲分子后,沥青质最大堆积体积分数ψ_m增加,说明沥青质胶团的分散度增加.由Kuhn-Kuhn方程计算所得沥青质甲苯溶液中沥青质颗粒的形状因子严重偏离球形,因未考虑溶剂化效应和颗粒间的相互作用,故与Pals-Rhodes方程得到的结果差别较大.由Leighton-Acrivos方程得到的相互作用系数表明,沥青质甲苯溶液添加双亲分子后,沥青质胶团之间的相互作用程度增加.
위리해쌍친분자대석유력청질갑분용액건력청질효단형상、용제화정도이급과립간상호작용적영향,측정료기갑분용액적점도,채용Pals-Rhodes방정、Eiler방정、Kuhn-Kuhn방정화Leighton-Acrivos방정관련료점도여체적분수지간적관계.유Pals-Rhodes방정득도적형상삼수α화용제화삼수K표명.재력청질갑분용액중력청질효용위구형.첨가쌍친분자후기용제화정도증가,단기형상잉위구형.유Eiler방정분석표명,력청질갑분용액첨가쌍친분자후,력청질최대퇴적체적분수ψ_m증가,설명력청질효단적분산도증가.유Kuhn-Kuhn방정계산소득력청질갑분용액중력청질과립적형상인자엄중편리구형,인미고필용제화효응화과립간적상호작용,고여Pals-Rhodes방정득도적결과차별교대.유Leighton-Acrivos방정득도적상호작용계수표명,력청질갑분용액첨가쌍친분자후,력청질효단지간적상호작용정도증가.
In order to understand the effects of amphiphiles on the shape, solvation and interaction of asphaltene particles in asphaltene-toluene solution, the viscosity of the solution was measured and correlated with volume fraction of asphaltene particle through experiential equations, such as Pals-Rhodes equation, Eiler equation, Kuhn-Kuhn equation and Leighton-Acrivos equation. The shape coefficient a and solvation factor K of asphaltene particle originated from Pals-Rhodes equation showed that the shape of asphaltene particle was spherical in asphaltene-toluene solution;and the degree of solvation increased with the addition of amphiphiles, while the shape of asphaitene particle was still spherical. The packing factorψ_m (maximum packing volume fraction) from Eiler equation proved that the polydispersity of asphaltene particle increased as amphiphiles were added into the asphaltene-toluene solution. Because the interaction and solvation of asphaltene particles in asphaltene-toluene solution were not taken into account in Kuhn-Kuhn equation, its result showed that the shape of asphaltene particle was not spherical, which was not consistent with Pals-Rhodes equation. The results from Leighton-Aerivos equation showed that the interaction of asphaltene particles increased with the addition of amphiphiles in asphaltene-toluene solution.