水平管道中甲醇和汽油顺序输送过程混油规律研究  

Study on the Mixed Oil Law in the Batch Transportation of Methanol and Gasoline in Horizontal Pipeline

作　　者：黄鑫[1] 施鸿翔 王良旭 李卫东 李加庆 尹鹏博 李臻超 滕霖 HUANG Xin;SHI Hongxiang;WANG Liangxu;LI Weidong;LI Jiaqing;YIN Pengbo;LI Zhenchao;TENG Lin(College of Chemical Engineering,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]福州大学化工学院,福州350108

出　　处：《油气与新能源》2024年第4期57-66,共10页Petroleum and new energy

基　　金：国家自然科学基金青年科学基金项目“电场作用下双液滴不聚并与多液滴成链机理研究”(52204073);福建省自然科学基金“成品油管道柴油蜡沉积及其对后行汽油段的混油影响研究”(2020J05097)。

摘　　要：采用成品油管道顺序输送甲醇不仅可以拓展甲醇运输方式、降低运输成本,还能够提升管道运力、缓解现有成品油管道低输量难题,但目前成品油管道顺序输送甲醇工艺相关研究鲜有报道,技术的推广和应用受限。针对顺序输送过程中的混油问题,结合ALE(Arbitrary Lagrangian Eulerian)方法、流体控制方程以及物质传递方程,建立了甲醇和汽油顺序输送混油模型,分析了输送次序和管道流速对甲醇和汽油顺序输送过程中混油长度和混油浓度演化的影响规律。研究表明,该模型模拟的混油长度略短于VOF(流体体积)方法,在实际顺序输送过程中选择甲醇前行汽油后行的输送次序,能够有效缩短混油长度。研究结论可为成品油管道顺序输送甲醇工艺提供理论指导。Batch transportation of methanol through product oil pipelines not only could expand the transportation method of methanol and reduce the transportation cost,but also can enhance the pipeline capacity and alleviate the low throughput problem of existing product oil pipelines.However,the study on the batch transportation of methanol in product oil pipelines is rarely reported,and the promotion and application of this technology is limited.For the oil mixing problem in the batch transportation,the paper established the methanol/gasoline mixed oil model by combining the arbitrary Lagrangian–Eulerian(ALE)method,fluid governing equations,and mass transfer equations and analyzes the rule on the evolution of mixed oil length and mixed oil concentration influenced by transportation sequence and flow velocity during the methanol/gasoline batch transportation.The research indicates that the simulated mixed oil length using this model in the paper is slightly shorter than that obtained with the VOF(Volume of Fluid)method.Choosing the methanol-gasoline sequence during the actual batch transportation can effectively reduce the mixed oil length.The research results can provide the significant theoretical guidance for the batch transportation process of methanol in product oil pipelines.

关 键 词：甲醇输送 ALE方法 混油扩散 数值模拟 

分 类 号：TE832[石油与天然气工程—油气储运工程]