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Direct Brown Coal Liquefaction in Tetralin. Products Yields Analysis
PROCEEDINGS of the 6th International Conference on Chemical Technology, 2018, Mikulov, CZ, Pages 282-287
- Category: Článek ve sborníku (Article in the proceedings)
- Author: Anděl Lukáš, Fratczak Jakub, Hidalgo Herrador José Miguel, Kusý Jaroslav, Lederer Jaromír, Svoboda Petr, Valeš Jan, Vráblík Aleš
- ISBN: 978-80-86238-77-7
- Year: 2018
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Direct coal liquefaction can be an alternative source of liquid fuels. The aim was to maximize the liquid product yield for DCL tests without hydrogen pressure using tetralin as solvent. Experiments were carried out in an autoclave (300 ml) in nitrogen (P = 0 bar). Tests were performed at 300, 350, 400 and 450 °C (1 h) using 1:1 or 0.4:1 of Brown Coal:Tetralin weight ratio. Then, solids, gases and liquids were sampled. The liquid product was analysed by elemental analysis, TGA, solubility in heptane and simulated distillation, the gas by GC-FID/TCD and the solids by solubility in n-heptane, xylene and trichloroethylene. The increment of temperature from 300 °C to 400 °C supposed an increment in the total amount of direct liquids products soluble in n-heptane. The maximum yield to n-heptane soluble products was found for the test carried out at 400 °C (1:1 weight ratio).