Ethylene glycol process is a long process

which includes more than ten fractionating columns and fixed-bed catalytic reactor.In the long process

there are many uncertain factors

such as catalyst deactivation and so on.Therefore the simulation of the whole ethylene glycol process is very difficult.In this paper

ASPEN PLUS software was used as a platform.Support vector machine

optimization method

mechanism modeling methods are integrated to develop the model of ethylene glycol process.With actual process data

the process model was intelligently rectified.The results of model simulation agreed with actual data fairly and the whole process model can satisfy the needs of process simulation.