沉淀点

用标度方程预测沥青质沉淀点

Applicaton of Scaling Equation to Predict the Onset of Asphaltene Precipitation

计算结果表明，沥青质沉淀点的计算值与实验数据基本相符，但沉淀量计算结果尚不能令人满意。

The calculation results show that the predicted values of onset of asphaltene precipitation agree with the experimental data .

本文研究了微晶体共沉淀点火药应用于刚性电引火药头，其点火性能和电感度。

The paper studies on the ignitability and the inductance of the rigid electric ignition , while the microcrystal-precipitating igniting explosive is applied to the rigid electric ignition .

研究了用标度方程预测沥青质沉淀点的可行性，并将其推广应用至高压注气体系和沉淀剂/溶剂/原油体系。

The applicability of scaling equation for predicting onset of asphaltene precipitation has been studied and further extended to high-pressure gas injected system and precipitant / solvent / oil system .

沉淀单点滴定法与双点滴定法研究

Precipitation single-point and double-point titrimetry

分析认为微观组织中沉淀物质点越小，均匀分散到晶界上越多，接头的拉伸强度越高。

The smaller and the more the precipitated particles uniformly distributed on the grain boundary , the higher the tensile strength of the joint .

结果表明，对常压正构烷烃体系和高压注气体系，标度方程可以通过较易测定的沥青质沉淀量准确预测较难测定的沥青质的沉淀点；

The results show that the scaling equation can provide accurate predictions for onset of asphaltene precipitation when knowing the variation of amount of asphaltene precipitation with dilution ratio in both normal-pressure n-alkane systems and high-pressure gas injected systems .

对常压正构烷烃体系和沉淀剂/溶剂/原油体系，标度方程可通过有限正构烷烃沥青质沉淀点数据准确预测其它正构烷烃沥青质的沉淀点。

By knowing a limited amount of onset data of asphaltene precipitation , the scaling equation can also be used to accurately predict the onset of asphaltene precipitation for other precipitants in normal-pressure n-alkane systems and precipitant / solvent / oil systems .