STUDY ON NITROGEN-COMPOUNDS DISTRIBUTION IN INFERIOR GAS OIL

Abstract

Abstract: With the development of novel residue hydrocracking technologies, such as slurry bed and ebullated bed, the production of inferior gas oil has sharply increased. Hydrocracking is the most effective technology to get the high value of inferior gas oil. The implementation of ultra-deep hydrodenitrogenation of inferior gas oil is the main technical difficulty in blending into the hydrocracking unit. The basic properties, hydrocarbon composition, and the distribution of nitrogen-containing compounds of four types of inferior gas oils were systematically analyzed using relevant characterization techniques. The results show that the total aromatic content of those inferior gas oil is similar, but the content of polycyclic aromatics in slurry-bed gas oil significantly increases, and the total content of single ring and double ring aromatics in ebullated-bed gas oil is higher than that of slurry bed gas oil and coker gas oil. The nitrogen-containing compounds of slurry-bed gas oil and coker gas oil have characteristics of high content, high DBE, low carbon number, and concentrated distribution. On the other hand, the nitrogen-containing compounds of ebullated-bed gas oil have characteristics of low content, low carbon number, and dispersed distribution.

Key words: inferior gas oil, hydrocarbon compositions, nitrogen-containing compounds, slurry bed, ebullated bed

References

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