Numerical Simulation of Radical Mechanism Reaction in Ethane-Propane Mixed Pyrolysis Models in Different Dimensions
With the development of ethylene raw materials,ethane and propane become important cracking raw materials,and the reaction mechanism of ethane-propane mixed cracking radical is great significance to the optimization of ethylene raw materials.Using FLUENT simulation software for one-and two-dimensional simulation,comparative analysis of tube axial flow rate,temperature,raw material and product concentration distribution.The results show that radial addition reduces the cracking temperature.Radical mixing can promote the central axial material cracking so that the concentration of ethylene and methane is higher than one-dimensional simulation.The chain initiation phase of mixed cracking of ethane-propane is only involved,ethane will participate in the chain transmission process,and the free radicals in the reaction system need a certain amount of accumulation to produce ethylene and propylene.
NETL
NSTL
万方数据
维普
