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CH4-CaSO4和H2S-Fe2O3反应体系的热力学和动力学研究

岳长涛; 李术元; 丁康乐; 钟宁宁   

  1. State Key Laboratory of Heavy Oil Processing, University of Petroleum, Beijing,102249,China
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2003-12-28 发布日期:2003-12-28
  • 通讯作者: 岳长涛

Study of Thermodynamics and Kinetics of CH4-CaSO4 and H2S-Fe2O3 Systems

YUE Changtao; LI Shuyuan; DING Kangle; ZHONG Ningning   

  1. State Key Laboratory of Heavy Oil Processing, University of Petroleum, Beijing,102249,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-12-28 Published:2003-12-28
  • Contact: YUE Changtao

摘要: The destruction of hydrocarbon in deep carbonate diagenetic environment is one of problems
on the formation of oil and gas. Organic-inorganic reactions in the process of TSR
(Thermochemical Sulfate Rednction) are the main reason to make disappearance of the
hydrocarbons. The work in this field has often been the subject of much research work in
recent years. In this paper, the thermodynamics of CH4-CaSO4 and H2S-Fe2O3 systems is
discussed to investigate the possibility of reactions. It is found that these two reactions
can proceed spontaneously.Increasing temperature is favorite for CH4-CaSO4 system but
disfavorite for H2S-Fe2O3 system. Thermal simulation experiments were carried out using
autoclave at high temperature and high pressure. The properties of the products were
characterized by microcoulometry, FT-IR and XRD methods. On the basis of the experimental
data, a reaction kinetic model is developed and kinetic parameters are determined.

关键词: thermochemical sulfate reduction;CH4-CaSO4 system;H2S-Fe2O3 system;simulation experiment;kinetics

Abstract: The destruction of hydrocarbon in deep carbonate diagenetic environment is one of problems
on the formation of oil and gas. Organic-inorganic reactions in the process of TSR
(Thermochemical Sulfate Rednction) are the main reason to make disappearance of the
hydrocarbons. The work in this field has often been the subject of much research work in
recent years. In this paper, the thermodynamics of CH4-CaSO4 and H2S-Fe2O3 systems is
discussed to investigate the possibility of reactions. It is found that these two reactions
can proceed spontaneously.Increasing temperature is favorite for CH4-CaSO4 system but
disfavorite for H2S-Fe2O3 system. Thermal simulation experiments were carried out using
autoclave at high temperature and high pressure. The properties of the products were
characterized by microcoulometry, FT-IR and XRD methods. On the basis of the experimental
data, a reaction kinetic model is developed and kinetic parameters are determined.

Key words: thermochemical sulfate reduction, CH4-CaSO4 system, H2S-Fe2O3 system, simulation experiment, kinetics