Research on Process of Catalytic Cracking Diesel Hydrogenation to Produce High Density Jet Fuel

Taking advantage of the properties of catalytic cracked diesel (LCO) with high density and rich aromatic hydrocarbons, the process of producing high-density jet fuel from LCO was carried out.The results show that using LCO as raw material and using NiMoW/Al2O3 hydrorefining catalyst with high aromatic saturation activity.

Ultra-deep hydrogenation and saturation under appropriate process conditions can reduce the mass fraction of aromatics in LCO to less than 5%.Further detailed hydrocarbon analysis by gas chromatography-mass spectrometry (GC-MS) method.It can clarify the distribution law of each hydrocarbon and examine the fractions enriched with monocyclic, bicyclic and tricyclic cycloalkanes.Determination of the ideal final boiling point of 270-280 ℃ for the hydrogenation of full-cut LCO to produce high-density jet fuel.At this fractionation temperature, high-density jet fuel components with a freezing point below -47 °C and a density (20 °C) greater than 0.835 g/cm3 can be obtained.