Study on Nitrate-Impregnated Sulfur Dioxide Sorbent Derived from Sewage Sludge

Abstract:

Activated carbon derived from sewage sludge was impregnated in nitrate solution to produce a sorbent for sulfur dioxide adsorption at low concentration. The sulfur dioxide capacity was measured according to a laboratory-designed breakthrough test. After adsorption experiments on sulfur dioxide, desulfurizer JZ-Ni was chosen as the optimal sorbent owing to its largest sulfur dioxide capacity 57.6 mg•g^-1 and the highest BET 210.3031 m²•g ^-1. The effects of a few conditions on SO₂ removal behavior of the sorbent were studied. The results show that the sorbent JZ-Ni under the best conditions of 5714 mg•m^-3 inlet SO₂ concentration, 2000h^-1 space velocity and 393K desulfurization temperature, 0.3 mm particle diameter in steam has the maximum breakthrough sulfur dioxide capacity 58.2 mg•g^-1 .

• Periodical: Advanced Materials Research (Volumes 383-390)
• Pages: 3675-3680
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.383-390.3675
• Online since: November 2011
• Authors: Yi Li Li, Jing Tian, Wen Jun Liang, Hong He, Yu Quan Jin
• Keywords: Adsorption, Capacity, Impregnated, Sewage Sludge, Sulfur Dioxide

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