Optimization of cracking pyrolysis performance with heavy hydrocarbons and naphtha as materials in the SC-1 cracking furnace

Through simulation experiments,the optimization on pyrolysis performance with heavy hydrocarbons and naphtha from Daqing Petrochemical Company as materials is studied.The effect of process parameters on target product yield is investigated with 30% and 35% of heavy hydrocarbons content(all the content was expressed with mass fraction) in the SC-1 cracking furnace.The experiment results show that when the hydrocarbons content(30%,35%) and naphtha cracked in the SC-1 cracking furnace,the triene yields can be reached 53.78% and 54.39%,respectively,under the conditions as follows:850℃of proper cracking temperature and 0.5(ω水/ω油) of dilution ratio.The pyrolysis performance of heavy hydrocarbons and naphtha is similar to that of naphtha alone.The simulation experiment data has been used in industrial cracking furnace,so that the yield of ethylene and triene is increased by 0.48 % and 0.15 %,respectively.