Production control in ethylene plant

Author

Tozawa, Yoichi ; Kawasaki, Syunichi ; Matsuo, Hitoshi ; Ogawa, Morimasa ; Emoto, Genichi

Author_Institution

Mitsubishi Kasei Corp., Okayama, Japan

fYear

1991

fDate

28 Oct-1 Nov 1991

Firstpage

938

Abstract

The authors have developed a production volume control system, which controls the volume of ethylene and propylene by using a process computer to manipulate the cracking temperature and the feed volume of materials. The control system consists of feedforward control for changing material composition as one disturbance factor and feedback control for production. After total control quantities are determined by feedback control and feedforward control, they are distributed to each cracking corresponding to its furnace conditions. The distribution is made by fuzzy condition evaluation based on the rules the operator had conventionally obtained. Production increased after implementing the system

Keywords

chemical technology; feedback; process computer control; production control; temperature control; cracking temperature; disturbance factor; ethylene plant; feedback control; feedforward control; furnace conditions; fuzzy condition evaluation; material composition; process computer control; production volume control; propylene; temperature control; Control systems; Distributed control; Feeds; Furnaces; Gases; Petroleum; Process control; Production control; Production systems; Temperature control;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on

Conference_Location

Kobe

Print_ISBN

0-87942-688-8

Type

conf

DOI

10.1109/IECON.1991.239164

Filename

239164