首页|Relationship between hydrogenation degree and pyrolysis performance of jet fuel
Relationship between hydrogenation degree and pyrolysis performance of jet fuel
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Understanding the relationship between the chemical composition and pyrolysis performance of endothermic hydrocarbon fuel(EHF)is of great significance for the design and optimization of advanced EHFs.In this work,the effect of deep hydrogenation on the pyrolysis of commercial RP-3 is investigated.Fuels with different hydrogenation degrees were obtained by the partially and completely catalytic hydrogenation and their pyrolysis performances were investigated using an apparatus equipped with an electrically heated tubular reactor.The results show that with the increase of hydrogenation degree,fuel conversion almost remains constant during the pyrolysis process(500-650 ℃,4 MPa);however,the heat sink increases slightly,and the anti-coking performance significantly improves,which are highly related to their H/C ratios.Detailed characterisations reveal that the difference of the pyrolysis perfor-mance can be ascribed to the content of aromatics and cycloalkanes:the former are prone to initiate secondary reactions to form coking precursors,while the latter could act as the hydrogen donor and release hydrogen,which will terminate the radical propagation reactions and suppress the coke depo-sition.This work should provide the guidance for upgrading EHFs by modulating the composition of EHFs.
Key Laboratory for Green Chemical and Technology,School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China
Haihe Laboratory of Sustainable Chemical Transformations,Tianjin 300192,China
Zhejiang Institute of Tianjin University,Ningbo 315201,China
Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology,College of Chemical and Biological Engineering,Zhejiang University,Hangzhou 310027,China
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National Key Research and Development Program of ChinaNational Postdoctoral Program of ChinaNational Natural Science Foundation of China
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