Advanced Process Control • Real Time Optimization • Process Control • Refinery Operations • Optimization • Refinery Economis and Coordination • Chemical Engineering • Research and Development • Petrochemical • Refinery Coordination and Economics
Marco A. Andrei - Fairfax VA, US Apostolos T. Georgiou - Reston VA, US
Assignee:
ExxonMobil Research Engineering Company Law Department - Annandale NJ
International Classification:
G05B 21/00
US Classification:
700272
Abstract:
A method is provided for controlling a multi-stage process. The process comprises multiple first stage processes for producing an intermediate product from a feed, and multiple further stage processes for producing an end-product from the intermediate products. The first stage processes comprise multiple intermediate processes and the further stage processes comprise multiple end processes for producing the end product. An intermediate controller controls the first stage processes in response to one or more product properties of the end product EP and a further controller FC controls the further stage processes in response to the product properties of the intermediate product. The multi-stage process further comprises the step of assigning process values to each of the end processes and the intermediate processes. The intermediate controller IC controls operation of the intermediate processes to optimize the overall process value for producing the end product. The end controller FC responds to the actions of intermediate controller IC to optimize the overall process value.
Optimizing Refinery Hydrogen Gas Supply, Distribution And Consumption In Real Time
Chris S. Gurciullo - Nokesville VA, US Marco A. Andrei - Fairfax VA, US Dave W. Barrett-Payton - Winchester, GB Apostolos T. Georgiou - Reston VA, US
Assignee:
ExxonMobil Research and Engineering Company - Annandale VA
International Classification:
G05B 21/00
US Classification:
700272
Abstract:
The present invention is directed to innovative and unique mathematical models that capture key constraints, process kinetics and control structures such that a wide envelope of hydrogen gas and associated light gas supply, distribution and use can be modeled. The present invention is also directed to a real time optimization (RTO) computer application for effective optimization of hydrogen and associated light gas supply and distribution and, thereby, consumption, in a refinery that employs said models and solves an objective function, as well as to a method and refinery using the same. The objective function can be an economic objective function such as the minimization of cost for hydrogen supply and distribution or the maximization of profit based on a valuation of products made by hydrogen consumers in the hydrogen system minus the corresponding cost of the hydrogen supply and distribution.
Rtodr
Principal Consultant, Founder
Exxonmobil Sep 1989 - Feb 2013
Global Real-Time Optimization Leader
Exxon Res&Eng Assigned To Castellon Spain Jul 1986 - Sep 1989
Process Control Project Leader
Exxon Company Usa Refining&Supply Jan 1982 - Jun 1986
Refinery Engineer, Coordination and Economics
Pdvsa Lagoven Nov 1978 - Dec 1981
Process Control Engineer
Education:
The University of Tulsa 2016 - 2020
Bachelors, Bachelor of Science, Engineering, Chemistry
Massachusetts Institute of Technology 1976 - 1978
Master of Science, Masters, Engineering, Chemistry
Skills:
Advanced Process Control Real Time Optimization Process Control Refinery Operations Optimization Refinery Economis and Coordination Chemical Engineering Research and Development Petrochemical Refinery Coordination and Economics
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