• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • View Item
  •   Home
  • Øvrige samlinger
  • Publikasjoner fra CRIStin - NTNU
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

A Control- and Estimation-Oriented Gravity Separator Model for Oil and Gas Applications Based upon First-Principles

Backi, Christoph Josef; Grimes, Brian Arthur; Skogestad, Sigurd
Journal article, Peer reviewed
Accepted version
Thumbnail
View/Open
Backi (4.285Mb)
URI
http://hdl.handle.net/11250/2597518
Date
2018
Metadata
Show full item record
Collections
  • Institutt for kjemisk prosessteknologi [1876]
  • Publikasjoner fra CRIStin - NTNU [41890]
Original version
Industrial & Engineering Chemistry Research. 2018, 57 (21), 7201-7217.   10.1021/acs.iecr.7b04297
Abstract
We introduce a simple model for a gravity separator based on first principles. It can be used for controller design to control the levels of oil, water, and the gas pressure as well as observer design to estimate unmeasurable parameters and disturbances. In addition, evaluation of separation efficiencies for the respective water- and oil-continuous phases are part of the model. The model incorporates three dynamic state equations describing the levels of the overall liquid (water plus oil) and water as well as the gas pressure subject to the in- and outflow dynamics. Furthermore, algebraic equations calculating simplified droplet distributions for each continuous phase are introduced in order to determine the exchange of water and oil between the two continuous phases. The controllers are of PI-type and control the outflows of the separator. Additionally, we introduce a virtual monitoring approach for the inflows of gas and liquid as well as the effective split ratio of oil and water entering the continuous water phase. Measurements for these variables are either expensive, unreliable, or even impossible to take (as for the split ratio). We demonstrate the results in simulations.
Publisher
American Chemical Society
Journal
Industrial & Engineering Chemistry Research

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit