Modular multivariable control improves hydrocracking

Journal Article · Tue Oct 01 00:00:00 EDT 1996 · Hydrocarbon Processing

OSTI ID:392551

Chia, T L; Lefkowitz, I ^[1]; Tamas, P D ^[2]

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1. ControlSoft, Inc., Cleveland, OH (United States)
2. Marathon Oil Co., Robinson, IL (United States)

Modular multivariable control (MMC), a system of interconnected, single process variable controllers, can be a user-friendly, reliable and cost-effective alternative to centralized, large-scale multivariable control packages. MMC properties and features derive directly from the properties of the coordinated controller which, in turn, is based on internal model control technology. MMC was applied to a hydrocracking unit involving two process variables and three controller outputs. The paper describes modular multivariable control, MMC properties, tuning considerations, application at the DCS level, constraints handling, and process application and results.

• OSTI ID: 392551
• Journal Information: Hydrocarbon Processing, Vol. 75, Issue 10; Other Information: PBD: Oct 1996
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
PETROLEUM REFINERIES
CONTROL EQUIPMENT
DESIGN
PERFORMANCE
PETROLEUM
HYDROCRACKING
MODULAR STRUCTURES
USES