Zpravodaj Hnědé uhlí 2020, 60(1)

Pyrolysis and direct coal liquefaction - maltenes addition effect on the vacuum gas oil hydrocracking

Dr. José Miguel Hidalgo Herrador, Ing. Jakub Fratczak, Ing. Aleš Vráblík, Dr. José Luis Gómez de la Fuente, Ing. Lukáš Anděl, Ing. Petr Svoboda, CSc., Jaroslav Kusý, RNDr. Ing. Josef Valeš

The maltenes fraction of coal tar pyrolysis or direct coal liquefaction product with a boiling range higher than 220 °C was mixed with vacuum gas oil for hydrocracking. The aim of the work was to study how an addition of coal derived compounds addition to vacuum gas oil affects the final product characteristics (comparing the tests using pure vacuum gas oil). Nickel tungsten supported on silico-alumina catalysts were used. Tests were performed in bench-scale (fast screening) and pilot-scale continuous flow reactors. For the fast screening, the feedstock and liquid products were analysed by simulated distillation. For longer-term tests, gases and liquids were analysed by simulated distillation, GC-FID/TCD, and GC/MS. The addition of coal-derived liquids did not affect the overall hydrocracking process.

Keywords: crude oil, coal, liquefaction, tar, vacuum gas oil, co-processing

Published: March 1, 2020  Show citation

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Herrador, J.M.H., Fratczak, J., Vráblík, A., de la Fuente, J.L.G., Anděl, L., Svoboda, P., Kusý, J., & Valeš, J. (2020). Pyrolysis and direct coal liquefaction - maltenes addition effect on the vacuum gas oil hydrocracking. Brown Coal Bulletin, 60(1), 
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