润滑油优化调合系统的开行发与应用-控制理论与控制工程专业毕业论文.docx

ABSTRACT ABSTRACT The world petroleum industry is growing very rapidly．There has been a． remarkable increase in the quantity demanded of lubricating oil in recent years．And the demand of the production quality is more stringent．Blending of lubricating oil is one of the most important processes of production system in the petroleum refineries．Great benefits can be achieved from the optimizing and blending of lubricating oil．For most of the petroleum refineries in China， the technique of manufacture is relatively backward and the method of control is still very simple．Therefore，they have lagged behind the wodd advanced level．The means is the advanced technique of manufacture which can be controlled and optimized with computer．The arithmetic of advanced control is requisite．For the purpose of optimizing and controlling the manufacture，we can construct the optimizing and blending of lubricating oil system．This thesis adopts that concept。develops the software of blending of lubdcafing oil and． applies to an actual production process．The main works of the thesis are as foIlows： Firstly，by consulting a great quantity of scientific or technical literatures， this thesis introduces some foundation knowledge of the lubdcafing oil， including the state of the art of lubricating oil blending and the qual耐indicator of lubricating oil．Furthermore，this thesis also introduces the concept of optimal blending control(OBC)．All of these lay the foundations for the following works． Then the thesis presents the function and the purpose of lubricating oil blending．It also introduces some knowledge of mechanism of mass transfer and explains the technique of manufacture in detail． At the basis of researching the mathematical model，the thesis validates the mathematical model with a large quantity of field data．After that，a new mathematical model，which is more suitable for the Chinese refinenes，iS III  浙汀大学硕：l。学位论文 developed． The thesis designs the optimizing control system of lubricating OiI