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http://hdl.handle.net/10174/2629
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Title: | Mercury Removal from Aqueous Solution and Flue Gas by Adsorption on Activated Carbon Fibres |
Authors: | Nabais, Joao Carrott, Peter Ribeiro Carrott, Manuela |
Keywords: | activated carbon fibre mercury adsorption |
Issue Date: | 2006 |
Abstract: | The use of two activated carbon fibres, one laboratorial sample prepared from a commercial acrylic textile fibre and one commercial sample of
Kynol1, as prepared/received and modified by reaction with powdered sulfur and H2S gas in order to increase the sulfur content were studied for
the removal of mercury from aqueous solution and from flue gases from a fluidized bed combustor. The sulfur introduced ranged from 1 to 6 wt.%
depending on the method used. The most important parameter for the mercury uptake is the type of sulfur introduced rather than the total amount
and it was found that the H2S treatment of ACF leads to samples with the highest mercury uptake, despite the lower sulfur amount introduced. The
modified samples by both methods can remove HgCl2 from aqueous solutions at pH 6 within the range 290–710 mg/g (ACF) which can be
favourably compared with other studies already published. The use of a filter made with an activated carbon fibre modified by powdered sulfur
totally removed the mercury species present in the flue gases produced by combustion of fossil fuel. |
URI: | http://hdl.handle.net/10174/2629 |
Type: | article |
Appears in Collections: | CQE - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica QUI - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica
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