Author: James Gremillion One of the earliest applications of "computer control", a now archaic term, on an ammonia plant was done in 1969 by Weissenfelder and Shah of Borden Chemical and IBM respectively. They were able to implement advanced control schemes in a...
Recently, we highlighted a recorded webinar on the use of online analyzers in refinery blending operations. The presenters, Emerson's Patrick Truesdale and Topnir Systems' Didier Lambert, also recently wrote a Processing Shale Feedstocks article, Three steps to...
I wanted to bring additional visibility to a great thread in the LinkedIn Process Control group on advanced regulatory control versus advanced process control. The post, So, ARC Can "Replace" APC? is based on a blog post, Advanced regulatory versus model-predictive...
A refinery produces many products, one of them petroleum coke. AFPM defines it: Petroleum coke (petcoke) is one of many valued consumer products produced during the oil refining process. Crude oil is processed into gasoline, diesel fuel, jet fuel, lubricating oils and...
Part 1 in the series addressed basic distillation column control and Part 2 explored inferential composition measurement and control design. In today's post I share how we need to consider how to close the material balance and the application of advanced process...
The PID controller entry in Wikipedia highlights the beginning of proportional+integral+derivative control going all the way back to the 19th century: PID controllers date to 1890s governor design.[2][3] PID controllers were subsequently developed in automatic ship...
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...
Lou Heavner explains how control has been traditionally performed on distillation columns.
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...
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...
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...
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...
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The opinions expressed here are the personal opinions of the authors. Content published here is not read or approved by Emerson before it is posted and does not necessarily represent the views and opinions of Emerson.