Chemical absorption of H2S for biogas purification



Document title: Chemical absorption of H2S for biogas purification
Journal: Brazilian journal of chemical engineering
Database: PERIÓDICA
System number: 000308957
ISSN: 0104-6632
Authors: 1


2
3
Institutions: 1Universidade Estadual de Maringa, Departamento de Engenharia Quimica, Maringa, Parana. Brasil
2Universidade Estadual de Maringa, Departamento de Quimica, Maringa, Parana. Brasil
3Universidade Estadual de Campinas, Faculdade de Engenharia Quimica, Campinas, Sao Paulo. Brasil
Year:
Season: Sep
Volumen: 21
Number: 3
Pages: 415-422
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English 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
Disciplines: Química
Keyword: Ingeniería química,
Biogás,
Purificación,
Sulfuro de hidrógeno,
Remoción quimica,
Catalizadores Fe-EDTA
Keyword: Chemistry,
Chemical engineering,
Biogas,
Purification,
Hydrogen sulfide,
Chemical removal,
Fe-EDTA catalysts
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