The Study Of Kerogen Reaction Process In The Self-heating Retorting Process Of The Oil Shale

In recent years,with the depletion of conventional fossil fuel resources,the development of new and alternative energy sources has become an important issue in energy research.As one of the most promising alternative sources of petroleum for the future,oil shale has drawn much attention due to the huge global reserves.The traditional Anaerobic Retorting process heats the reaction temperature to the required temperature under the full flow of nitrogen gas to pyrolyze the kerogen so as to generate oil and gas spills.The retorting process requires a large energy input,which has become an obstacle to the development of retort technology The main problem.The research group developed a new low-energy input retorting technology,is through the nitrogen gas temperature is raised to³50?then pass into the oxygen,The ratio of nitrogen to oxygen is the ratio of nitrogen to oxygen in the air,then the reaction The temperature will spontaneously rise,we call it self-heating retort,the oil yield of self-heating retorting is not obviously different from the traditional oxygen-free retorting.In this paper,the chemical structure of kerogen was studied by BET,XRD and FT-TR.The results show that the oil shale before 350?As the evaporation process of water,the kerogen decomposed at 350⁶00?,C atom showed an upward trend.In order to further determine the change of the carbon structure of kerogen,the kerogen was characterized by solid state ¹³C NMR and peak fitting to get the skeleton of kerogen skeleton,and the change trend of each carbon structure in the carbonization was obtained.Self-heating Retorting process in the oil-yield and traditional Anaerobic Retorting process is almost the same case,the Self-heating Retorting process is not only much less energy than the traditional Anaerobic Retorting process,the Self-heating Retorting process is more environmentally friendly to the environment,the semicoke of the underground retorting technology is a great significance development.