Influence of filtering layer thickness on hydrogen sulfide removal from air
Artykuł w czasopiśmie
| Status: | |
| Autorzy: | Wasąg Henryk |
| Rok wydania: | 2014 |
| Wersja dokumentu: | Drukowana |
| Język: | angielski |
| Numer czasopisma: | 1 |
| Wolumen/Tom: | 5 |
| Strony: | 11 - 14 |
| Bazy: | CAS; DOAJ; DOAJ; IndexCopernicus; EBSCO; ProQuest | Google Scholar |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| The paper deals with a new method of hydrogen sulfide removal from air by its selective catalytic oxidation with the use of fibrous carriers of Fe-EDTA complex. The complex of trivalent iron converts hydrogen sulfide to elemental sulfur. Bivalent iron formed in the reaction is oxidized by the atmospheric oxygen and the overall process can be accounted as pseudo-catalytic. The possibility of obtaining fibrous filtering materials able to remove small concentrations of H2S from the air was described. The base of these materials is fibrous ion exchanger with Fe(III)-EDTA complex immobilized on their functional groups. It is known that the filtering layers with anion exchange package are much more active in the catalytic processes of H2S removal than cation exchanger and inert materials. In the present research it has been established that degree of conversion of hydrogen sulfide to sulfur was 70-90% if the residence time of the purified air in the mass-exchange unit was below one second. The required degree of hydrogen sulfide removal from air could be easily controlled by applying appropriate thickness of the filtering layer materials. It allows applying very thin filtering layers of the Fe-EDTA/Fiban AK-22 or Fiban A-6 materials as an efficient mean for hydrogen sulfide removal.The obtained and presented results of the research confirm the applicability of these materials in the systems of deodorization and air quality control. The most perspective area of application of the fibrous catalysts is air purification for clean rooms of precise mechanics, electronics, pharmaceutical productions as well as individual protection of human from harmful impurities. |
