油相组成对结蜡层分层及老化规律的影响研究

发布时间：2018-02-13 14:31

本文关键词： 结蜡层分层蜡碳数分布蜡含量沥青质含量沉积量老化程度　出处：《西安石油大学学报(自然科学版)》2017年06期 　论文类型：期刊论文

【摘要】：利用Couette结蜡装置,对蜡碳数分布、蜡含量及沥青质含量不同的含沥青质合成蜡油和纯蜡油开展结蜡实验,探究了油样组成对结蜡层分层及老化规律的影响。研究发现:随着油样蜡分子碳数的增长,结蜡表层沉积量和蜡含量均降低,老化程度减小;结蜡底层的沉积量升高,蜡含量降低,老化程度减小。随着油样蜡含量的升高,结蜡表层和底层的沉积量和蜡含量均升高,老化程度均增大。随油样沥青质含量的升高,结蜡表层沉积量降低,蜡含量升高,变化幅度较小,老化程度略有增大;结蜡底层沉积量降低,蜡含量升高,变化幅度较大,老化程度明显增大。纯蜡油结蜡层沉积量远高于含沥青质蜡油整体结蜡层,蜡含量及老化程度略低于结蜡表层,远低于结蜡底层。
[Abstract]:The wax deposition experiments were carried out on asphaltene synthetic wax oil and pure wax oil with different carbon number distribution, wax content and asphaltene content in Couette wax deposition device. The effects of oil sample composition on the layering and aging law of wax deposit layer were investigated. It was found that with the increase of wax molecular carbon number of oil sample, the deposition amount and wax content of wax deposit layer decreased, the aging degree decreased, and the deposition amount of wax deposit bottom layer increased. With the increase of wax content of oil sample, the deposition amount and wax content of the surface and bottom layer increased, and the aging degree increased. With the increase of asphaltene content of oil sample, the deposition amount of wax deposit on the surface layer decreased. The wax content increased, the change range was small, the aging degree increased slightly, the deposit amount of wax deposit decreased, the wax content increased, and the change range was larger. The amount of wax deposit of pure wax oil is much higher than that of asphaltene wax oil, and the wax content and aging degree are slightly lower than that of the surface layer and the bottom layer of wax deposit.
【作者单位】：中国石油管道局工程有限公司设计分公司市政工程室;中国石油管道局工程有限公司设计分公司工艺室;新地能源工程技术有限公司燃气技术分公司;中国石油大学(华东)储运与建筑工程学院;
【基金】：国家自然科学基金(51204202) 山东省自然科学基金(ZR2016EEM22) 中央高校基本科研业务费专项资金(14CX02210A;15CX06072A)
【分类号】：TE832.36

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