Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/3085
Título: The role of solvent and catalysts on co-liquefaction of coal and waste
Autor: Pinto, Filomena
Paradela, Filipe
Costa, Paula
André, Rui Neto
Rodrigues, Tiago
Snape, Colin
Herrador, José M. Hidalgo
Fratczak, Jakub
Palavras-chave: Thermochemical processes
Liquefaction
Energetic valorisation
Waste valorization
Coal
Plastics
Polyethylene
Data: 2018
Editora: AIDIC - The Italian Association of Chemical Engineering
Citação: Pinto, F.; Paradela, F.; Costa, P... [et.al.]. - The role of solvent and catalysts on co-liquefaction of coal and waste. In: Chemical Engineering Transactions, 2018, Vol. 70, p. 1735-1740
Resumo: ABSTRACT: It is predictable that liquid fuels will be needed for long distance transport sector for quite some years. Thus, it is imperative to find alternative fuels to reduce the dependency on petroleum derived fuels and to decrease the negative environmental impact. Co-liquefaction of coal and wastes, like plastics, to produce liquid fuels and raw materials for several industries may play an important role in the near future, because it will decrease the problems associated with the dependency of only one raw material and also it will allow taking profit of the suitable properties of each one, while diluting the disadvantageous characteristics of coal. The use of plastics, namely polyethylene (PE) favoured coal liquefaction, as PE macromolecules are easier to break down and to form smaller liquid molecules than coal. To improve the production of liquid compounds by coal liquefaction solvents with different hydrogen donor capabilities were tested, such as: methylnaphthalene and tetralin. Tetralin led to the highest liquid yields and conversion, due to its hydrogen donor capacity. Some commercial available catalysts, like FCC (Fluid Catalytic Cracking) and Co-Mo based were also tried. Coal impregnated with some metals like iron (Fe) and molybdenum (Mo) was also tested. Impregnated coal, especially with Mo showed to have a better performance than the commercial catalysts. Liquid yield obtained during co-liquefaction of coal and PE when coal was impregnated with Mo was around 66 wt%. The use of tetralin allowed increasing this value around 44 %.
Peer review: yes
URI: http://hdl.handle.net/10400.9/3085
DOI: 10.3303/CET1870290
ISSN: 2283-9216
Aparece nas colecções:UB - Artigos em revistas internacionais

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