DSpace Collection: http://hdl.handle.net/10174/497 2026-04-04T09:08:29Z 2026-04-04T09:08:29Z Use as adsorbent of an activated carbon fiber chemical modified with polyamine Nabais, Joao Carrott, Peter Ribeiro Carrott, Manuela Duran Valle, Carlos Rofriguez, Jose http://hdl.handle.net/10174/1426 2009-04-07T10:49:47Z 2008-01-01T00:00:00Z Title: Use as adsorbent of an activated carbon fiber chemical modified with polyamine Authors: Nabais, Joao; Carrott, Peter; Ribeiro Carrott, Manuela; Duran Valle, Carlos; Rofriguez, Jose Abstract: The present invent describes the use of a basic activated carbon fiber as adsorbent in gas and liquid phase. The activated carbon fiber was produced from activated carbon fibres by treatment with polyamine of the generic type H2N-(CH2-CH2-NH-)xCH2-CH2-NH2, where x is a number between 0 and 10, preferably 3 or 4, accordingly the method described on the Spanish Patent P200501663. The procedure described in this invent produces a new adsorbent with chemical specific characteristics which can be used in adsorption processes in liquid phase in order to adsorb contaminants or to separate specific components of the solution. 2008-01-01T00:00:00Z Processes for the production of activated carbons from a lignocellulosic precursor Nabais, Joao Carrott, Peter Ribeiro Carrott, Manuela http://hdl.handle.net/10174/1425 2009-04-07T10:47:54Z 2008-01-01T00:00:00Z Title: Processes for the production of activated carbons from a lignocellulosic precursor Authors: Nabais, Joao; Carrott, Peter; Ribeiro Carrott, Manuela Abstract: The present invent describes the use of a novel lignocellusosic precursor for the production of activated carbons. The materials production is done by carbonization under inert atmosphere and activation with carbon dioxide and/or steam. It is also possible to perform a chemical activation with KOH. The activated carbon produced can be used in several application on liquid and gas phase, such as pollutants removal, catalysis, water treatment and some other applications in medicine 2008-01-01T00:00:00Z Process for the manufacture of carbon molecular sieves” Nabais, Joao Carrott, Peter Ribeiro Carrott, Manuela Menendez, JA http://hdl.handle.net/10174/1424 2009-04-07T10:46:20Z 2007-05-31T23:00:00Z Title: Process for the manufacture of carbon molecular sieves” Authors: Nabais, Joao; Carrott, Peter; Ribeiro Carrott, Manuela; Menendez, JA Abstract: The present invent describes a novel method to produce carbon molecular sieves. The carbon materials are submitted to a thermal treatment in a microwave furnace in order to selectively introduce modifications on the porous and chemical structure of the materials. The modified materials proved to be excellent when used as carbon molecular sieves for gas separations, namely CO2/CH4 and O2/N2. 2007-05-31T23:00:00Z