The industrial acetylene hydrogenation system has the characteristics of nonlinearity and slow parameter variance.The model

which is applied to model predictive control currently

is so simple that the predictive control result could not achieve the optimal effect during a long-term operation.So it is necessary to establish an accurate model of reactor as the virtual instrument in laboratory.Based on the model

it is possible to further study the more effective control method.In this paper

a heterogeneous

two-dimensional and dynamic model for an industrial acetylene hydrogenation system was developed through process analysis.The condition for activity loss with time

due to hydrocarbon deposition resulting from acetylene green oils

was also considered.The dynamic process simulation software gPROMS was utilized to perform its simulation

and the dynamic process could predict the changing trend.The effects of important parameters on the system simulation were analyzed

and a group of parameter values were chosen for the reactor which was studied in this paper.By linearizing the dynamic model at different operation points

the different latent roots of the linear state space model were obtained and used to analyze the system stability at different operation points.The simulation and stability analysis showed that the reactor was under control.