Optimization of EB plant by constraint control

Journal Article · Fri Mar 01 00:00:00 EST 1991 · Hydrocarbon Processing; (USA)

OSTI ID:5806516

Hummel, H K; de Wit, G B.C.; Maarleveld, A ^[1]

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1. Badger, B.V., The Hague (NL)

Optimum plant operation can often be achieved by means of constraint control instead of model- based on-line optimization. This is because optimum operation is seldom at the top of the hill but usually at the intersection of constraints. This article describes the development of a constraint control system for a plant producing ethylbenzene (EB) by the Mobil/Badger Ethylbenzene Process. Plant optimization can be defined as the maximization of a profit function describing the economics of the plant. This function contains terms with product values, feedstock prices and operational costs. Maximization of the profit function can be obtained by varying relevant degrees of freedom in the plant, such as a column operating pressure or a reactor temperature. These degrees of freedom can be varied within the available operating margins of the plant.

• OSTI ID: 5806516
• Journal Information: Hydrocarbon Processing; (USA), Vol. 70:3; ISSN 0018-8190
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
PETROCHEMICAL PLANTS
COMPUTERIZED CONTROL SYSTEMS
COST BENEFIT ANALYSIS
ON-LINE SYSTEMS
OPTIMIZATION
PROCESS CONTROL
CHEMICAL PLANTS
CONTROL
CONTROL SYSTEMS
INDUSTRIAL PLANTS
020400* - Petroleum- Processing