石油炼制与化工
• 油品与添加剂 • 上一篇 下一篇
张红 肖稳发
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ZHANG Hong
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摘要： 摘要: 采用红外光谱仪、核磁共振波谱仪对聚合物的合成特征基团进行了表征，并采用X射线衍射仪对不同型号蜡及降凝剂的结晶性能进行了分析测试，结果表明蜡晶与聚合物的结晶性能密切相关，结晶度不同，蜡晶分散效果不同，对原油降凝性能也就有所区别，当两者结晶性能状态匹配时蜡晶分散效果变好，降凝降粘性能最佳，并通过考察原油体系热性能和低温流动性能进行了证实。
关键词: 原油, 降凝剂, 结晶, 聚合物
Abstract: The characteristic groups of polymeric pour point depressant (PPD) were analyzed by FT-IR and NMR techniques. The crystallization properties of various types of wax and PPD were measured by XRD. The results showed that the formation of wax crystal in crude oil was closely related with the crystallization properties of PPD, the dispersion of wax crystals was varied with the various crystallinities of PPD, thus the pour point reduction of crude oil was altered with PPD. When the crystallization properties of wax and PPD were well coordinated, the dispersion of wax crystals in crude oil was uniform and the reduction of system pour point and viscosity were significant. Investigation on the thermal behavior and cold-flow property of crude oil containing PPD validated the above conclusion.
Key words: crude oil, pour inhibitor, crystallization, polymer
张红 肖稳发. 聚合物型原油降凝剂的结晶性能研究[J]. 石油炼制与化工, doi: .
ZHANG Hong. STUDY ON THE CRYSTALLIZATION PROPERTY OF POLYMERIC POUR POINT DEPRESSANT FOR CRUDE OIL[J]. Petroleum Processing and Petrochemicals, doi: .
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