Wszystkie pola: So2 removal - Katalog OPAC zbiorów

Skocz do pozycji: 1.

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, Ca_1.5SiO_3.5, 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

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Skocz do pozycji: 2.

Tytuł:: Simultaneous removal of SO2 and NOx from sintering flue gas using ammonia-Fe(II)EDTA combined with electrolytic regeneration
Autorzy:: Liang, Y.
Yao, X.
Quin, L.
Chen, W.
Han, J.
Powiązania:: https://bibliotekanauki.pl/articles/208117.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: ammonia
desulfurization
flue gases
nitrogen oxides
nitrogen removal
sintering sulfur dioxide
amoniak
odsiarczanie
gazy odlotowe
tlenki azotu
usuwanie azotu
spiekanie
ditlenek siarki
Opis:: Sulfur dioxide and nitrogen oxide are health hazardous gases, which contribute to the formation of submicron acidic particulates. To reduce SO₂ and NO_x emission from the sintering flue gas, the combination of ammonia-Fe(II)EDTA solution scrubbing with Fe(III) electrolytic regeneration is proposed. The above method has the following advantages: direct conversion of NO_x and SO₂ to harmless N₂ and SO₄ ²⁻, recovery of the by-product (NH₄)₂SO₄), simultaneous removal of NO_x and SO₂ emission from flue gas in the reactor. The effect of the pH, initial Fe(II)EDTA concentration, and voltage on the desulfurization and denitration efficiencies was investigated using a bench-scale reactor. The maximal desulfurization and denitration efficiencies were 98% and 52%, respectively. The optimum parameters were pH ˃ 5.0, 2.1 V, and 0.05 mol·dm^–3 Fe(II)EDTA concentration. SO₂ and NO_x removal from the sintering flue gas by ammonia-Fe(II)EDTA solution scrubbing combined with electrolytic regeneration was also demonstrated in a pilot-scale reactor.
Źródło:: Environment Protection Engineering; 2018, 44, 2; 19-36
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

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