文章基本信息

标题：Plantwide Control of Two Stage Desalting Process For Feed Rate and Grade Disturbances ⁎
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作者：Vikky Anand ; Shashank Srivastava ; Vinay A. Juvekar 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2022
卷号：55
期号：1
页码：387-392
DOI：10.1016/j.ifacol.2022.04.064
语种：English
出版社：Elsevier
摘要：AbstractThe control of crude oil desalting operation in a desalter, especially for the oil-water level control is critical for safe operation. The problem is particularly severe in two-stage desalter, wherein the brine stream from second stage desalter is recycled to first stage desalter. In this work, a dynamic model for the process comprising a kettle and two desalting units is developed. The two control structures are proposed which are differentiated based on the adopted level control strategy. The first control structure is combined with override controllers for increasing the flexibility of process operation with respect to feed rate and grade disturbances. A supervisory layer consisting of two advisory controllers is proposed, which provides the manipulation for manually operated mix valves in the process.
关键词：KeywordsTwo stage desaltingDynamic modelPlantwide control structureOverride controllersSupervisory layer