Influence of filtering layer thickness on hydrogen sulphide removal from air
Fragment książki (Abstrakt)
| Status: | |
| Autorzy: | Wasąg Henryk |
| Wersja dokumentu: | Elektroniczna |
| Język: | angielski |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| The present studies were focused on the possibility of removing small amounts of hydrogen sulphide by catalytic oxidation with atmospheric oxygen. Utilization of ferric chelates in the process is widely known. The catalyst is active in strong alkali environment which causes serious corrosivity problems. To avoid these problems fibrous ion exchangers as carriers of the catalyst were used. The role of fibrous package is improving the mass-transfer between the gas and liquid, buffering the pH of absorbing solution and catalyzing the reactions of oxidation of sulphur and iron ions. The main parameters affecting the process of catalytic oxidation are: concentration of hydrogen sulphide in the air, relative humidity of the purified air, the process time and the content of Fe-EDTA complex in the fibres. It has been established that degree of conversion of hydrogen sulphide to sulphur was 70-90% if the residence time of the purified air in the mass-exchange unit was 0.35 second. It allows to apply very thin filtering layers of the Fe-EDTA/Fiban AK-22 material as an efficient mean for hydrogen sulphide removal. The most perspective area of their application is air purification and individual protection of human from harmful impurities. |
