Influence of Processing Conditions on the Properties of High Paraffin Oil and Sediment Composition

IF 0.8 4区工程技术 Q4 CHEMISTRY, MULTIDISCIPLINARY Solid Fuel Chemistry Pub Date : 2024-04-15 DOI:10.3103/S0361521924020149

G. I. Volkova, D. A. Zubarev

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Abstract

The influence of ultrasonic treatment, a polymer additive, and their combined effect on the structural and rheological properties of highly paraffinic, low-resin oil and the composition of separated sediments was studied. The oil was processed in an ultrasonic field (field intensity, 6 W/cm²; frequency, 22 kHz; and time, 1–10 min). The sedimentation process was carried out at a medium temperature of 30°C and a cold rod temperature of 5°C. Viscosity–temperature parameters of oil were determined using a Brookfield DV-III ULTRA rotational viscometer. Ultrasonic treatment for 1 min and a polymer additive (0.05 wt %) led to a decrease in the viscosity by a factor of 5 and in pour point by 8°C. The introduction of the additive and the complex effect contributed to changes in the molecular weight distribution of n-alkanes in sediments: a shift of the second distribution maximum to the region of higher molecular weight components and an increase in the concentration of n-alkanes ΣC₁₇H₃₆–C₃₃H₆₈.

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加工条件对高石蜡油特性和沉积物成分的影响

摘要研究了超声波处理、聚合物添加剂及其综合效应对高石蜡、低树脂油的结构和流变特性以及分离沉积物成分的影响。油类在超声波场中进行处理（场强，6 W/cm2；频率，22 kHz；时间，1-10 分钟）。沉淀过程在 30°C 的介质温度和 5°C 的冷棒温度下进行。使用 Brookfield DV-III ULTRA 旋转粘度计测定油的粘度-温度参数。超声波处理 1 分钟和聚合物添加剂（0.05 wt %）可使粘度降低 5 倍，倾点降低 8°C。添加剂的引入和复合效应使沉积物中正烷烃的分子量分布发生了变化：第二分布最大值向高分子量组分区域移动，正烷烃 ΣC17H36-C33H68 的浓度增加。

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来源期刊

Solid Fuel Chemistry CHEMISTRY, MULTIDISCIPLINARY-ENERGY & FUELS

CiteScore

1.10

自引率

28.60%

发文量

审稿时长

6-12 weeks

期刊介绍： The journal publishes theoretical and applied articles on the chemistry and physics of solid fuels and carbonaceous materials. It addresses the composition, structure, and properties of solid fuels. The aim of the published articles is to demonstrate how novel discoveries, developments, and theories may be used in improved analysis and design of new types of fuels, chemicals, and by-products. The journal is particularly concerned with technological aspects of various chemical conversion processes and includes papers related to geochemistry, petrology and systematization of fossil fuels, their beneficiation and preparation for processing, the processes themselves, and the ultimate recovery of the liquid or gaseous end products.