油砂沥青供氢热裂化改质油的储存稳定性研究

发布时间：2018-07-10 14:12

本文选题：供氢热裂化 + 改质油　；参考：《石油炼制与化工》2016年12期

【摘要】：通过考察油沙沥青减黏裂化和供氢热裂化改质油的密度、黏度、安定性、沥青质含量、甲苯不溶物含量随着储存时间的延长而发生的变化,研究了供氢热裂化改质油的储存稳定性及其内在机制。结果表明:随着储存时间的延长,减黏裂化和供氢热裂化改质油的密度、黏度、安定性、沥青质含量和甲苯不溶物含量均呈现增大的趋势,说明两种改质油的稳定性均随储存时间的延长而变差;在相同条件下,相比于减黏裂化改质油,供氢热裂化改质油的密度、黏度、沥青质含量和甲苯不溶物含量随储存时间延长而增加幅度较小,供氢热裂化改质油的安定性(斑点试验等级)一般不超过2级,满足船运对油品安定性的要求,说明供氢热裂化改质油的储存稳定性优于减黏裂化改质油;供氢热裂化改质油稳定性改善的原因主要为供氢馏分油的供氢作用和体系胶体稳定性的提高。
[Abstract]:The density, viscosity, stability, asphaltene content and toluene insoluble content of modified oil from oil-sand asphalt viscosity reduction cracking and hydrogen-supplying thermal cracking were investigated with the prolongation of storage time. The storage stability and internal mechanism of modified hydrothermal cracking oil were studied. The results showed that the density, viscosity, stability, asphaltene content and toluene insoluble content of the modified oil increased with the increase of storage time. The results show that the stability of the two modified oils becomes worse with the prolongation of storage time, and under the same conditions, the density and viscosity of the modified oil are higher than those of the modified oil. The content of asphaltene and toluene insoluble matter increased slightly with the increase of storage time, and the stability (spot test grade) of the modified hydro-thermal cracking oil generally did not exceed 2 grades, which met the requirements of shipping for the stability of oil products. The results show that the storage stability of the modified oil is better than that of the modified oil of viscosity reduction cracking, and the main reasons for the improvement of the stability of the modified oil are the function of supplying hydrogen fraction oil and the stability of colloid of the system.
【作者单位】：中国石油大学(华东)重质油加工国家重点实验室;
【基金】：中国石油天然气股份有限公司科学研究与技术开发项目(PRIKY15008)
【分类号】：TE624.3

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