Posts Tagged ‘distillation column’

Crude Oil Property Variability Requires Real-time Analysis

Posted in Refining on Monday, July 27th, 2015. No comments yet
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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 successful processing of shale and other opportunity feedstocks. In the article, they highlight the challenge many refiners face […]

Distillation Column Control Basics – Part 3

Posted in Process Optimization on Monday, February 2nd, 2015. No comments yet
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Author: Lou Heavner 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 control (APC). Material Balance The level in the reflux accumulator […]

Optimizing Reactor Temperatures for Resins Manufacturer

Posted in Support Services, Variability Management on Wednesday, December 10th, 2014. One comment so far
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I heard a great story about a resins manufacturer who was having some issues in meeting quality specifications due to temperature variability in the process. Emerson’s Gergo Kertesz, whom you may recall from an Emerson Exchange presentation I liveblogged, shared this story. This variability not only impacted the quality of the produced resin, it impacted […]

How Good is Your Level Control?

Posted in Control Strategies, Process Optimization, Variability Management on Monday, August 25th, 2014. 4 comments so far
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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 non-self-regulating or integrating processes. Everything you probably learned about […]

A Primer on Refinery Operations

Posted in Refining on Monday, June 30th, 2014. 3 comments so far
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If you’re not in the oil refining business the names of the process units, such as cat crackers, can sound quite exotic. Emerson’s Tim Olsen, a consultant on the refining industry team, wrote a great AIChE Chemical Engineering Progress article, An Oil Refinery Walk-Through. It is written for engineering students and engineers in other industries […]