【摘要】 采用Gibbs自由能极小化法对等离子体裂解煤制乙炔碳-氢-氧-氩多相多组分体系的化学反应平衡组成进行了计算,结果表明,在C-H-Ar平衡体系中,惰性组分氩的存在降低了乙炔的最高平衡产率,氩在5000K以下基本不电离,典型组成为C:H:Ar=1:13.39:0.6的液化石油气裂解反应体系的最佳反应温度区间为2800～3200K.在C-H-Ar-O多相平衡体系中,氧作为杂质同样降低了乙炔的平衡产率,体系中氧以CO的形式存在,典型组成为C:H:O:Ar=1:8.638:0.160:3.339的煤裂解反应体系的最佳反应温度区间为3000～3200K.更多还原

【Abstract】 In order to find the temperature range and initial reactant ratio for the maximum yield of acetylene, chemical thermodynamic equilibrium of heterogeneous multi-component C-H-O-Ar system was studied.All of the thermodynamic equilibrium calculations were based on minimization of Gibbs free energy.Computations were performed for the temperatures from 500 to 5000 K at an interval of 100 K.The results show that existence of argon reduces the maximum equilibrium yield of acetylene in C-H-Ar system.The best temperature range for acetylene production from LPG pyrolysis by hydrogen-argon plasma is 2800～3200 K for the system with C:H:Ar=1:13.39:0.6.In C-H-Ar-O system, oxygen, as impurity, also reduces the maximum equilibrium yield of acetylene.Oxygen element always exists in the form of carbon monoxide.The best temperature range for acetylene production from coal pyrolysis by hydrogen-argon plasma is 3000～3200 K for the system with C:H:O:Ar=1:8.638:0.160:3.339.更多还原