Development and Investigation of Adsorbents Based on Ore Materials for the Purification of Flue Gas from Sulphur Dioxide
N. V. SHIKINA1, S. R. KHAIRULIN1, V. V. KUZNETSOV1, N. A. RUDINA1, Z. R. ISMAGILOV1,2
1Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
2Institute of Coal Chemistry and Material Science, Siberian Branch of the Russian Academy of Sciences, Sovetskiy Pr.18, Kemerovo 650000 (Russia)
Keywords: purification from SO2, adsorbent, sorption capacity, iron-manganese concretions, natural adsorbents
Abstract
Outlooks for the use of natural material — iron-manganese concretions (IMC) from the Gulf of Finland — as adsorbent for SO2 are considered. The initial material in the form of pellets and powder was studied by means of X-ray spectral fluorescence method, by means of XPA, BET, TGA, SEM, determination of mechanical strength. The dependences of the physicochemical parameters of the material on thermal treatment within the range 100–1000 °C were established. IMC samples were tested in SO2 sorption process. It was established that the sorption capacity of IMC samples with respect to SO2 increases with an increase in adsorbent humidity. The promising character of the use of IMC samples with humidity above 40 % in gas purification from sulphur dioxide was demonstrated.
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