DocumentCode :
279859
Title :
An application of controllability assessment in process engineering
Author :
Anderson, J.S.
fYear :
1990
fDate :
32918
Firstpage :
42401
Lastpage :
42405
Abstract :
An example is presented of a plant which was built but did not work and had to be expensively modified. Subsequent investigation using multivariable control analysis highlighted fundamental problems and suggested how the plant might have been simply modified to render it more controllable. The feed to the plant consists of mixed hydrocarbons which are pre-heated, vaporized and partly superheated by heat exchange with the reactor outlet stream which has to be reduced in temperature prior to separation in a distillation train. The feed is further superheated by the furnace and then passed into the reactor where a catalytic isomerisation reaction takes place. The reaction is substantially thermally neutral and the reactor itself has a large thermal time lag for temperature changes. The delay for flow changes is short, of the order of 5 minutes
fLanguage :
English
Publisher :
iet
Conference_Titel :
Successful Industrial Applications of Multivariable Analysis, IEE Colloquium on
Conference_Location :
London
Type :
conf
Filename :
189921
Link To Document :
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