Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/3086
Título: Direct primary brown coal liquefaction via non-catalytic and catalytic co-processing with model, waste and petroleum-derived hydrogen donors
Autor: Fratczak, Jakub
Herrador, José M. Hidalgo
Lederer, Jaromír
Stevens, Lee
Uguna, Clement
Snape, Colin
Fuente, José L. Gómez de la
Andel, Lukás
Svoboda, Petr
Pinto, Filomena
Palavras-chave: Direct coal liquefaction
Brown coal
Data: 2018
Editora: Elsevier
Citação: Fratczak, J.; Herrador, José M. H.; Lederer, J... [et.al.]. - Direct primary brown coal liquefaction via non-catalytic and catalytic co-processing with model, waste and petroleum-derived hydrogen donors. In: Fuel, 2018, Vol. 234, p. 364-370
Resumo: ABSTRACT: Direct coal liquefaction (DCL) seems to be a suitable way to convert low rank coals into liquid fuels, especially when problematic wastes are used together with this feedstock. It is also a solution to become energy independent for many countries which have significant coal resources and limited access to crude oil. The aim of this research was to investigate DCL process by the co-processing of brown coal with model-, petroleum- and waste-derived solvents. The brown coal with and without W, Fe and Mo metals supported on its surface was tested. Thirteen DCL tests with added hydrogen pressure were carried out in the autoclave. These tests were classified in two groups. First group covered reactions using model and petroleum-derived solvents (tetralin, 1-methylnaphthalene, light cycle oil (LCO), hydrotreated LCO, C9+ fraction and decalin) with non-impregnated brown coal. Then, LCO was chosen as solvent for carrying out three tests using the metals supported on coal. Finally, waste tires pyrolysis oil was used as a waste-derived solvent for other three tests with molybdenum supported on coal. For tests using LCO, the total amount of direct liquid and n-heptane soluble products was 20 wt% higher using metal covered brown coal in comparison to unmodified one. The test with the brown coal impregnated by 1% of molybdenum resulted in the best efficiency, thus this type of coal was chosen as a catalytic feedstock for the tests with waste tires pyrolysis oil.
Peer review: yes
URI: http://hdl.handle.net/10400.9/3086
ISSN: 0016-2361
Versão do Editor: https://doi.org/10.1016/j.fuel.2018.06.131
Aparece nas colecções:UB - Artigos em revistas internacionais

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