Recirculation and reaction hybrid intelligent modeling and simulation for industrial ethylene cracking furnace
【Abstract】The simulation of naphtha pyrolysis in industrial ethylene cracking furnaces, which usually requires both firebox and reactor models, is non-linear and strongly coupled. The firebox model involves a great number of variables and takes a lot of time to get a solution. An intelligent hybrid model was proposed by first designing an artificial neural network (ANN) from the data of the firebox model and then combining ANN with the reactor model. The intelligent hybrid modeling and simulation was developed on an industrial ethylene cracking furnace. By using actual process data, it is demonstrated that the hybrid simulation shows good agreement with industrial production. The hybrid model significantly reduces simulation time and largely meets the requirement of industrial modeling.
【Keywords】 simulation; model reduction; pyrolysis; neural network; ethylene; zone method;
(Translated by Song K)
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