摘要：Heavy oils are commonly found in China; however, the Karamay heavy oil is unique among all. It has very low asphaltene content and is an excellent feedstock for producing high-quality lubricant base oils. Physical characteristics of the oil are dependent on its chemical composition, which is quite difficult to be characterized due to its complexity. In this work, the bulk properties and molecular composition of the Karamay heavy crude oils were characterized and compared with those of other heavy oils. It was found that the high concentration of compounds with long side chains and low naphthenic skeletons makes the Karamay heavy oil exhibit a high viscosity index. The viscosity of Karamay heavy oil is less temperature dependent at high temperatures, which is technically challenged for using thermal enhanced oil recovery techniques in oil production. However, the chemical composition of Karamay heavy oil is ideal for use as a lubricant base oil. Moreover, the low total sulfur content and high sulfides/thiophenes ratio of Karamay heavy oil provide good oxidation stability. Special biological precursors and geological history were considered to elucidate the unique molecular composition of Karamay heavy oil.

ISSN号：0887-0624

卷、期、页：卷: 35期: 1页: 473-478

发表日期：2021-01-07

影响因子：3.421400

期刊分区（SCI为中科院分区）：三区

收录情况：SCIE（科学引文索引网络版）

发表期刊名称：ENERGY & FUELS

参与作者：张胜飞,霍进,孙新革,杨凤翔

第一作者：王萍,吴建勋,张亚和,史权

论文类型：期刊论文

论文概要：张胜飞,霍进,孙新革,杨凤翔,王萍,吴建勋,张亚和,史权，Molecular Composition Reveals Unique Rheological Property of Karamay Heavy Crude Oil，ENERGY & FUELS，2021，卷: 35期: 1页: 473-478

论文题目：Molecular Composition Reveals Unique Rheological Property of Karamay Heavy Crude Oil