氢/氩热等离子体裂解煤碳-氢-氧-氩多相多组分体系的热力学分析

›› 2009, Vol. 9 ›› Issue (1): 79-83.

氢/氩热等离子体裂解煤碳-氢-氧-氩多相多组分体系的热力学分析

陈宏刚赵辉孙亚玲张永发

中国石油大学(华东) 重质油国家重点实验室中国石油大学(华东) 重质油国家重点实验室太原理工大学煤科学与技术教育部和山西省重点实验室太原理工大学煤科学与技术教育部和山西省重点实验室

收稿日期:2008-06-13 修回日期:2008-10-20 出版日期:2009-02-20 发布日期:2009-02-20
通讯作者: 陈宏刚

Thermodynamic Analysis of Hydrogen-Carbon-Oxygen-Argon System for Coal Pyrolysis in Hydrogen-Argon Thermal Plasma

CHEN Hong-gang ZHAO Hui SUN Ya-ling SUN Yong-fa

State Key Lab of Heavy Oil Processing, China University of Petroleum(Huadong) State Key Lab of Heavy Oil Processing, China University of Petroleum(Huadong) Key Laboratory of Coal Science and Technology of Shanxi Province and Ministry of Education; Taiyuan University of Technology Key Laboratory of Coal Science and Technology of Shanxi Province and Ministry of Education; Taiyuan University of Technology

Received:2008-06-13 Revised:2008-10-20 Online:2009-02-20 Published:2009-02-20
Contact: CHEN Hong-gang

摘要/Abstract

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5000 K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2800~3200 K. 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3000~3200 K.

关键词: 热力学平衡, 多相多组分, Gibbs自由能, 等离子体, 乙炔

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.

Key words: thermodynamic equilibrium, heterogeneous multi-component, Gibbs free energy, plasma, acetylene

中图分类号:

TQ530.2

陈宏刚赵辉孙亚玲张永发. 氢/氩热等离子体裂解煤碳-氢-氧-氩多相多组分体系的热力学分析[J]. , 2009, 9(1): 79-83.

CHEN Hong-gang ZHAO Hui SUN Ya-ling SUN Yong-fa. Thermodynamic Analysis of Hydrogen-Carbon-Oxygen-Argon System for Coal Pyrolysis in Hydrogen-Argon Thermal Plasma[J]. , 2009, 9(1): 79-83.

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