Spectroscopic analyzers, e.g. near IR (NIR), play an increasing role in online anal. of a wide variety of processes.NIR was used for many years to analyze e.g. protein, fat, and moisture content of food products, octane numbers along with some other properties of gasolines and other petroleum products.Equipped with fiber optics, NIR analyzers circumvent many sample handling problems and are thus ideal for many online applications provided process environment requirements are fulfilled.Examples of some inhouse application developments for the process and pilot plants starting from the 1st online octane measurement analyzer connected to a process computer system in 1988 will be given.

ISA Transactions

On the usage of spreadsheet packages for automating statistical process control tasks

作者: Jokinen, Petri A.

This paper presents an implementation of statistical process control (SPC) application using a modern spreadsheet software package.This implementation uses a graphical user interface and integrates the SPC functionality into the spreadsheet package in such form that it becomes an integral part of the package.A fairly complete collection of control chart types have been included.This system also contains an embedded expert assistant for the selection of the appropriate control chart type for the problem depending on the data characteristics.The usage of this statistical process control application is demonstrated by using online statistical process control of control loop operation as an example.This example clearly illustrates the importance of variable selection for performing statistical process control.

Process Control and Quality

Integration of quality control and process operations - a case

作者: Aaljoki, Kari ; Jokinen, Petri ; Dressler, Neal

The integration of the quality control laboratory and process operations using modern computerized solutions is reported.The actual example is an MTBE plant.A general framework for integrated production and quality management is introduced and the requirements of laboratory and process operating personnel are explained in light of this framework.Computer systems used and user experiences are presented.

100 项与 Neste Engineering Oy 相关的药物交易

登录后查看更多信息

100 项与 Neste Engineering Oy 相关的转化医学

登录后查看更多信息