Friedman, Y. Z.
Petrocontrol, New York, New York
Y. Zak Friedman is a Principal Consultant with Petrocontrol. He has practiced APC for most of his career, specializing in using first-principles models for inferential process control and has developed inferential models to fit many hydrocarbon processes. Dr. Friedman’s experience spans more than 50 yr, working with Exxon Research and Engineering, KBC Advanced Technology and Petrocontrol. He holds a PhD degree from Purdue University.
I stopped writing editorials for a while because people were uncomfortable reading them. But I have finally decided against burying my head in sand. We ? control engineers ? should discu..
I have participated in the National Petrochemical and Refiners Association (NPRA) computer conference without fail for over a decade, and have seen it go through the ebb and flow of oil..
When the input data are clean, model fidelity is better than that of onstream analyzers
Modeling approach involves a short-cut simulation of a column section
Closed-loop economic optimization of refineries and chemical units has been a dream in our industry for over four decades. There have been at least three waves of attack on this problem, but optimizat..
Editor's note: In the March '98 "HP In Control" editorial1, I named several controversial issues and requested readers' input. Dr. Friedman is responding to per..
Conventional wisdom has it that investments in advanced process control pay out in weeks. Pour in the money, and things will begin to happen. Years of work as an advanced control consultant have taugh..