溶剂萃取法分离印度尼西亚油砂。

Solvent Extraction for Separation of Indonesian Oil Sands.

机构信息

Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.

Zhejiang Chemical Products Quality Inspection Company Ltd., Hangzhou 310023, China.

出版信息

Int J Environ Res Public Health. 2023 Mar 3;20(5):4527. doi: 10.3390/ijerph20054527.

DOI:10.3390/ijerph20054527

PMID:36901535

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10002370/

Abstract

Based on the examination of the basic properties, the solvent extraction process (SEP) was applied with high efficiency in the extraction of bitumen from Indonesian oil sands. To separate the oil sands, different organic solvents were first screened, and the extraction effects were analyzed to select a suitable solvent. Then, the effects of operating conditions on the extraction rate of bitumen were investigated. Finally, the compositions and structures of the bitumen obtained under suitable conditions were analyzed. The results showed that the Indonesian oil sands were oil-wet oil sands with a bitumen content of 24.93%, containing a large number of asphaltenes and resins with high polarity and complex structures. The separation performance was affected by different organic solvents and operating conditions. It was shown that the closer the structure and polarity of the selected solvent is to the solute, the better the extraction effect. The extraction rate of bitumen reached 18.55% when toluene was used as the extraction solvent under the operating conditions of V (solvent):m (oil sands) 3:1, temperature 40 °C, stirring velocity 300 r/min, time 30 min. The method could also be applied to the separation of other oil-wet oil sands. The compositions and structures of bitumen can guide the separation and comprehensive use of industrial oil sands.

摘要

基于基本性质的考察，溶剂萃取工艺（SEP）在从印度尼西亚油砂中提取沥青方面具有高效性。为了分离油砂，首先筛选了不同的有机溶剂，并分析了萃取效果以选择合适的溶剂。然后，研究了操作条件对沥青萃取率的影响。最后，分析了在合适条件下获得的沥青的组成和结构。结果表明，印度尼西亚油砂是油湿油砂，沥青含量为 24.93%，含有大量具有高极性和复杂结构的沥青质和树脂。分离性能受不同有机溶剂和操作条件的影响。结果表明，所选溶剂的结构和极性越接近溶质，萃取效果越好。当甲苯作为萃取溶剂，在 V（溶剂）：m（油砂）为 3：1、温度为 40°C、搅拌速度为 300 r/min、时间为 30 min 的操作条件下，沥青的萃取率达到 18.55%。该方法也可应用于其他油湿油砂的分离。沥青的组成和结构可以指导工业油砂的分离和综合利用。