Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/26117
Type: Artigo de periódico
Title: Chemical absorption of H2S for biogas purification
Author: Horikawa, M.S.
Rossi, F.
Gimenes, M.L.
Costa, C.M.M.
Silva, M.G.C. da
Abstract: This work presents an experimental study of purification of a biogas by removal of its hydrogen sulphide (H2S) content. The H2S was removed by means of chemical absorption in an iron-chelated solution catalyzed by Fe/EDTA, which converts H2S into elemental sulphur (S). Preparation of the catalyst solution and the results of biogas component absorption in the catalyst solution (0.2 mol/L) are presented. These results are compared with those for physical absorption into pure water under similar conditions. Experimental results demonstrate that, under the same experimental conditions, a higher percentage of H2S can be removed in the catalytic solution than in water. In a continuous counter current using adequate flow-rate phases contact at room temperature and low gas pressure, the results demonstrate that is possible to totally remove the H2S from the biogas with the prepared catalytic solution.
Subject: biogas purification
H2S removal
Fe/EDTA catalyst
Editor: Brazilian Society of Chemical Engineering
Rights: aberto
Identifier DOI: 10.1590/S0104-66322004000300006
Address: http://dx.doi.org/10.1590/S0104-66322004000300006
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322004000300006
Date Issue: 1-Sep-2004
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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