Mathematical Modeling of Olefin Plant Acetylene Hydrogenation Reactor (Amir Kabir Petrochemical Complex)

  In this research, the modeling and simulation of hydrogenation reactor of Amirkabir petrochemical acetylene unit was carried out. The reaction processes are elementary and in this process acetylene was converted to ethylene. The modeling process was happed with introducing mathematical equations of mass transfer. The set of process equations were solved simultaneously using method of lines and finite difference techniques. The results showed that simulation with 80 elements has minimum deviation with experimental data. The results showed that the simulation result has good agreement with experimental data. The maximum relative error of this mathematical model is well under about 1%. After model validation, various variable profiles along the reactor are discussed. Then, the effects of effective parameters such as inlet temperature, total inlet mass flow rate and CO flow rate are investigated in detail. The optimum value of carbon monoxide to get highest selectivity is 700 ppm. Also the results showed that the process has good selectivity at temperature 77oC.