公开(公告)号：EP2734830A1

公开(公告)日：2014-05-28

申请号：EP12748293.3

申请日：2012-07-20

申请人： ExxonMobil Research and Engineering Company

发明人： KANVINDE, Atul, G. ,  BAKER, jR., Charles, L. ,  RIZZO, John, T. ,  LANE, Janet, L. ,  SAEGER, Roland, B.

IPC分类号： G01N21/03 ,  G01N21/51 ,  G01N33/28

CPC分类号： G01N21/0332 ,  G01N21/53 ,  G01N33/2888

摘要： The invention is a technique for predicting future haze formation in dewaxed, petroleum-derived, lubricant base stocks and, by extension, products made from such base stocks. In general, the technique measures the changes in light scattering caused by the formation and disappearance of wax crystals in a dilute test sample of neat base stock, over the course of a temperature profile. The data obtained is then compared to a previously formulated historical correlation of measurements taken using light scattering data to haze potential. The technique focuses on haze disappearance temperature as a reference point, as opposed to total wax formation. The technique also uses a solvent to accelerate the formation of wax crystals in the test sample. The technique provides a robust early warning system that allows refineries to rapidly and accurately determine the long term haze potential of a base stock production prior to release. The technique can be performed in real time, typically in less than an hour.

摘要翻译： 本发明是用于预测脱蜡，石油衍生的润滑剂基础油以及由这些基础油制成的产品的未来雾度形成的技术。 通常，该技术测量在温度曲线过程中在纯基础油的稀释试样中蜡晶体的形成和消失引起的光散射变化。 然后将获得的数据与使用光散射数据到雾度电位进行的测量的先前制定的历史相关性进行比较。 该技术的重点是雾霾消失温度作为参考点，而不是总蜡形成。 该技术还使用溶剂来加速测试样品中蜡晶体的形成。 该技术提供了一个强大的预警系统，允许炼油厂在发布前快速，准确地确定基础油生产的长期雾度潜力。 该技术可以实时执行，通常在不到一个小时内完成。