Posts Tagged ‘fired heater’

When Tuning PID Alone is not the Answer

Posted in Process Optimization on Monday, September 10th, 2018. No comments yet
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Proportional-Integral-Derivative (PID) control is the workhorse control algorithm for process manufacturers. When tuned properly, it seeks to move a loop’s process variable (PV) to the setpoint (SP) as quickly as possible without overshoot or instability. But, in some cases, even proper tuning is not enough. External factors such as equipment failures, mechanical performance, or incorrect […]

Refinery and Chemical Plant Pressure Regulator Applications

Posted in Regulator on Tuesday, October 14th, 2014. One comment so far
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Pressure regulators play an important role in process operations. Wikipedia describes their operation: A pressure regulator’s primary function is to match the flow of gas through the regulator to the demand for gas placed upon the system. If the load flow decreases, then the regulator flow must decrease also. If the load flow increases, then […]

Fired Heater Safety and Burner Management Systems

Posted in Refining, Safety on Tuesday, September 17th, 2013. No comments yet
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Back in March in a post, Safety System Considerations for Process Fired Heaters, I shared some thoughts from a presentation by Emerson’s Nikki Bishop and David Sheppard. The good news is that their thoughts are now available in a PTQ article, Role of fired heater safety systems. Fired heaters are found in refineries and chemical […]

Detecting Fired Heater Flame Loss

Posted in Pressure, Refining on Monday, April 29th, 2013. No comments yet
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The AIChE 2013 Spring Meeting and 9th Global Congress on Process Safety is taking place this week down the road from me in San Antonio, Texas. I just heard the news from Emerson’s Tim Olsen, Chair of the AIChE Fuels & Petrochemicals Division, that a paper on detecting fired heater flame loss won best paper […]

Fired Heater Safety Standards and Burner Management

Posted in Safety on Tuesday, April 2nd, 2013. One comment so far
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In an earlier post, Safety System Considerations for Process Fired Heaters, I highlighted an American Fuel & Petrochemical Manufacturers (AFPM) paper by Emerson’s Nikki Bishop and Dave Sheppard. In this post, I’ll share the safety system design, selection and estimated savings in startup time reductions from the paper. The authors note that safety instrumented systems […]