- Tytuł:
- Enhancing SO2 removal efficiency by lime modified with sewage sludge in a novel integrated desulfurization process
- Autorzy:
-
Qin, L.
Han, J.
Chen, W.
Liu, Z.
He, M.
Xing, F. - Powiązania:
- https://bibliotekanauki.pl/articles/950037.pdf
- Data publikacji:
- 2017
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
sewage sludge
steel industry
sintering process
osad ściekowy
przemysł hutniczy
proces spiekania - Opis:
- In China, the sintering process annually emitted around 1.5 million t SO2, representing 70% of SO2 produced from the iron and steel industry. Lime based sorbent was modified with municipal sewage sludge (MSS) and the influence of the modification on the desulfurization efficiency was investigated in a laboratory-scale novel integrated desulfurization (NID) reactor. The properties of modified sorbent were characterized by the Brunauer–Emmett–Teller (BET) analyzer and X-ray fluorescence (XRD) analyzer. BET surface area was increased from 17.48 to 46.68 m2g–1. when the MSS/lime ratio increased from 0 to 0.08. Ca4Al8Si8O32, Ca1.5SiO3.5, Na2Si2O5 and CaSiO3 found in the modified lime benefited for the increase of the BET surface area and pore volume. The effects of sewage sludge/CaO weight ratio, calcination temperature and hydration time on the desulfurization efficiency were also studied. SO2 removal efficiency was increased from 88.7% to 97.3% after using the lime modified with sewage sludge.
- Źródło:
-
Environment Protection Engineering; 2017, 43, 4; 17-27
0324-8828 - Pojawia się w:
- Environment Protection Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł