摘要：In response to the poor fluidity of waxy crude oil, the microwave viscosity reduetion experiments on waxy crude oil were carried out using microwave technology. By combined application of the analysis methods such as freezing point tester, differential scanning calorimeter and polarizing microscope, the paper investigates the influence mechanism of microwave treatment on the viscosity, freezing point and wax crystal precipitation characteristics of waxy crude oil. The results show that after microwave treatment, the number of crystallization points of waxy crude oil decreased, the supersaturation of wax molecules was increased at the initial stagc of crystallization, the wax precipitation rate increased and large particlc wax crystals were generated, which contributed to the decrease of wax precipitation point. The mass fraction for wax precipitation increased from 1.83% to 3.93%, and the difficulty of construeting the card-house network structure also increased, resulting in a decrease of the freezing point by 6 °C. The large particle wax crystals formed by microwave treatment have a compact structure, for which the relative effective volume fraction is decreased, resulting in a decrease in the viscosity of waxy crude oil. The viscosity reduetion rate can rcach 57. 6% to 78. 4% in the oil delivery temperature r?nge of 18 °C to 22 °C. ? 2025 Editorial Office of Acta Petrolei Sinica. All rights reserved.

ISSN号：1001-8719

卷、期、页：卷41期2：371-381

发表日期：2025-01-01

期刊分区（SCI为中科院分区）：无

收录情况：EI（工程索引）

发表期刊名称：Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section)

参与作者：王志业,杨晓乐

通讯作者：吕明月,蔡朵

第一作者：李家州,韩善鹏,张玉明,张炜,陈哲文

论文类型：期刊论文

论文概要：李家州,吕明月,蔡朵,韩善鹏,王志业,杨晓乐,张玉明,张炜,陈哲文，Influence Mechanism of Microwave Treatment on Wax Precipitation Characteristics and Fluidity of Waxy Crude Oil，Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section)，2025，卷41期2：371-381

论文题目：Influence Mechanism of Microwave Treatment on Wax Precipitation Characteristics and Fluidity of Waxy Crude Oil