In part 1, we looked at how control has been traditionally performed on distillation columns. We'll look at some improvements in today's post. Inferential Composition Measurement One thing required for distillation column control is product quality measurement. This...
Advanced Control Team
Distillation Column Control Basics – Part 1
Lou Heavner explains how control has been traditionally performed on distillation columns.
Solving Thermal Oxidizer Interacting Loops
Author: Sonal Gilani In an earlier post, Improving Energy Efficiency in Thermal Oxidizers, I highlighted how switching control loops from manual to automatic mode improved overall efficiency. Emerson's James Beall shared a second story on this thermal oxidizer...
Improving Energy Efficiency in Thermal Oxidizers
Author: Sonal Gilani Thermal oxidizers are used to destroy the waste gases containing volatile organic compounds (VOC) and volatile hazardous air pollutants (HAP) by raising the temperature of the material above its auto ignition point in the presence of oxygen. The...
Methodology for Solving Control Loop Problems
This time of year, after our big Emerson Exchange conference, I like to go back and see what sessions I missed to be able to be able to recap for you. I caught up with Emerson's Mark Coughran, whom you may recall from many control performance-related posts. He...
Adjusting Model Predictive Controller Response
Knowledge sharing need not be limited to one week conferences like the recent Emerson Exchange conference. I mention this to highlight an excellent discussion thread in Emerson Experts Forum in the Emerson Exchange 365 community. The thread, MPC [Model Predictive...
Expanding the Use of DeltaV Advanced Control
Friday is a Meet the Experts day at Emerson Exchange where a multitude of panels are assembled to field questions from the user community. I'm in the "Expanding the Use of DeltaV Advanced Control" panel with a great line up of advanced control technologists and...
Regulatory and Model Predictive Control Difference?
Over in LinkedIn's Process Control group, a question was asked: What is the difference between regulatory and model predictive control. Is it possible that MPC work as stand alone without regulatory control? Emerson's Chowyang Neo offered: Regulatory Control generally...
Solving Boiler Drum Level Swings
Effectively controlling the drum level in an industrial boiler helps to maximize overall energy efficiency. When the drum level varies it can not only impact boiler efficiency, but overall reliability due to unplanned shutdowns. Emerson's Mark Coughran shared a story...
How Good is Your Level Control?
So asks Emerson's Lou Heavner in a thought-provoking post in the DeltaV track of the Emerson Exchange 365 community. Lou opens: Is it good enough? Is it too good? Do you even know? Should you care?Well yes, you probably should care. Most level processes are...
Optimizing Ethylene Furnace Operations on Low-Cost Ethane Feedstock
For manufacturers with energy intensive processes, such as the petrochemical industry, the shale oil and gas boom in North America has led to lower feedstock costs. In this short, 1:34 video, Emerson's James Beall describes some of the challenges faced by plants to...
Lambda Control-Loop Tuning Essentials with James Beall
Having trouble with an oscillating integrating process? Have too much variability in a self-regulated process? Need a refresher about the essentials of Lambda (λ) tuning? Then check out James Beall's workshop at the Jan. 21–23 Texas A&M University 2014...
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