Present status and prospect of coal-based jet fuel

In order to promote the development of Jet fuels in China,three coal- based Jet fuels that are JP- 900,coal- based full synthetic Jet fuel and Jet fuel from direct coal liquefaction were reviewed in this paper. For these three coal- based Jet fuels,the research history and preparation methods were systematically reviewed. Furthermore,by comparing performance testing data of the coal- based Jet fuels and petroleum- based Jet fuels,the physicochemical properties and service performance of the coal- based Jet fuels were discussed. Finally,the development strategies of coal- based Jet fuel were proposed. The JP- 900 was essentially free of surfur and nitrogen,significantly more dense than typical Jet fuels,and had a high flash point,low freeze point and low polar compound. Furthermore,the thermal stability and combustion property of JP- 900 were superior to that of the petroleum- based Jet fuels. Compared with the characteristics of typical Jet A- 1,the coal- based full synthetic Jet fuel achieved the same or better thermal stability,lubricity and elastomer compatibility. The Jet fuel from direct coal liquefaction had the same hydrocarbon type as that in JP- 900 which was high density,high flash point,low freezing point and rich in cyclanes. However,the heteroatomic compound significantly effected its performance. The coal- based jet fuels were not used in business application except coal- based full synthetic jet fuel. In order to achieve commercial production and business application of the coal- based Jet fuels,the production capacity of coal liquefaction should be improved,the testing methods and product standard for coal- based Jet fuels should be regulated.