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Towards the development of water purification technologies using carbon materia...

Deposição e gasificação de carbono catalítico em superfícies metálicas

Dissertação apresentada para obtenção do grau de Doutor em Engenharia Química, na Faculdade de Engenharia da Universidade do Porto, sob a orientação do Prof. Doutor José Luís C. C. Figueiredo

Production, characterization and application of activated carbon from brewer’s ...

Different types of activated carbon were prepared by chemical activation of brewer’s spent grain (BSG) lignin using H3PO4 at various acid/lignin ratios (1, 2, or 3 g/g) and carbonization temperatures (300, 450, or 600 °C), according to a 22 full-factorial design. The resulting materials were characterized with regard to their surface area, pore volume, and pore size distribution, and used for detoxification of ...

Ciclones de recirculação

The main purpose of this research project is to study at a laboratory-scale the application of recirculating cyclones to the dry scrubbing of acid gases using solid particles of Ca(OH)2. A new system will be used, based on the combination of very high efficiency reverse-flow cyclones with a straight-through cyclone concentrator, which will simultaneously remove the injected solid particles and promote their par...

Carbon nanotubes and nanofibers: long term involvement and recent applications

Carbon nanotubes (CNTs), carbon nanofibres (or filaments, CNFs) and vapor-grown carbon fibres (VGCFs) are related materials that can be obtained by pyrolysis of hydrocarbons in the presence of suitable catalysts. The common origins of these carbon nanostructures were discussed in a recent NATO ASI [Carbon Filaments and Nanotubes: Common Origins, Differing Applications? Eds. L.P.Biró, C.A.Bernardo, G.G.Tibbetts,...