METHOD IMPROVES PYROLYSIS TLE OPERATION

Jan Barton Chemopetrol Labem, Czechoslovakia An objective cost function was derived for optimizing the duration of an operating cycle of the transfer line heat exchanger, or waste-heat boiler, on ethylene furnaces for generation of high-pressure steam. The objective function was developed to minimize both the cost of cleaning and the heat loss associated with the higher pyrolysis gas exit temperatures required by coke deposition on the heat transfer area of the transfer line heat exchanger.

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