Experimental study on the coal tar hydrocracking process over different catalysts |
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| Authors: | Magdalena Majka Grzegorz Tomaszewicz Andrzej Mianowski |
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| Affiliation: | 1. Institute for Chemical Processing of Coal, Zabrze, Poland;2. Department of Inorganic, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, Gliwice, Poland |
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| Abstract: | In the paper, the results of the study on a laboratory process of hydrocracking of coal tar are presented. High-temperature coal tar was hydrocracked in an autoclave reactor, at 400–413 °C and 7,3–9,6 MPa over 5 different, hydrocracking catalysts to study the yields and characteristics of the products. Liquid products were obtained with a yield of 88–92 wt.% and gas products with a yield of 12–8 wt.%. After dehydration by azeotropic distillation, liquid products were separated on the oil fraction boiling below 360 °C, and pitch fractions boiling above this temperature. In the balance of distillation, it is clear that only the cracking activity of Ni | |
| Keywords: | Coal tar PAHs Hydrocracking Hydrocracking catalysts Autoclave |
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