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Enhancing SO2 removal efficiency by lime modified with sewage sludge in a novel integrated desulfurization process

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Treść / Zawartość
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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
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.
Rocznik
Strony
17--27
Opis fizyczny
Bibliogr. 25 poz., tab., rys.
Twórcy
autor
  • College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, P.R. China
autor
  • College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, P.R. China
autor
  • College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, P.R. China
autor
  • College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, P.R. China
autor
  • College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, P.R. China
autor
  • College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, Hubei, P.R. China
Bibliografia
  • [1] HAN J., KIM H., SAKAGUCHI Y., CHEOL‐HO K., YAO H., The synergetic effect of plasma and catalyst on simultaneous removal of SO2 and NOx, Asia-Pac. J. Chem. Eng., 2010, 5 (3), 441.
  • [2] China Statistical Yearbook on Environment, National Bureau of Statistics of China, 2012.
  • [3] Emission standard of air pollutants for sintering and pelletizing of iron and steel industry, Ministry of Environmental Protection of China, 2012.
  • [4] MA X., KANEKO T., XU G., KATO K., Influence of gas components on removal of SO2 from flue gas in the semidry FGD process with a powder-particle spouted bed, Fuel, 2001, 80 (5), 673.
  • [5] ZHANG X., WANG N., Effect of humidification water on semi-dry flue gas desulfurization, Energy Proc., 2012, 14, 1659.
  • [6] WANG N., LUO Z., GAO X., CEN K., Study of new semi-dry flue gas desulfurization, J. Power Eng., 2003, 23, 2586 (in Chinese).
  • [7] ZHOU Y., PENG J., ZHU X., ZHANG M., Hydrodynamics of gas–solid flow in the circulating fluidized bed reactor for dry flue gas desulfurization, Powder Technol., 2011, 205 (1), 208.
  • [8] MAROCCO L., MORA A., CFD modeling of the Dry-sorbent-injection process for flue gas desulfurization using hydrated lime, Sep. Purif. Technol., 2013, 108, 205.
  • [9] WANG X., LI Y., ZHU T., JING P., WANG J., Simulation of the heterogeneous semi-dry flue gas desulfurization in a pilot CFB riser using the two-fluid model, Chem. Eng. J., 2015, 264, 479.
  • [10] ZHANG Y., WANG T., YANG H., ZHANG H., ZHANG X., Experimental study on SO2 recovery using a sodium–zinc sorbent based flue gas desulfurization technology, Chinese J. Chem. Eng., 2015, 23, 241.
  • [11] WANG Y., WANG H., DUAN Y., Experimental research of NID semi-dry desulfurization of flue gas, Boiler Technol., 2011, 42 (3), 71.
  • [12] LIU H., Application of NID desulfurization process for WISCO sintering flue gas, Ind. Safety Environ. Prot., 2011, 7, 13.
  • [13] SHIN K., KIM H., KIM Y., LEE H., Effect of reactivity of quick lime on the properties of hydrated lime sorbent for SO2 removal, J. Mater. Sci. Technol., 2009, 25 (3), 329.
  • [14] ZHOU Y., ZHU X., PENG J., LIU Y., ZHANG D., ZHANG M., The effect of hydrogen peroxide solution on SO2 removal in the semidry flue gas desulfurization process, J. Hazard. Mater., 2009, 170 (1), 436.
  • [15] OGENGA D., MBARAWA M., LEE K., MOHAMED A., DAHLAN I., Sulfur dioxide removal using South African limestone/siliceous materials, Fuel, 2010, 89 (9), 2549.
  • [16] RENEDO M., FERNANDEZ J., Kinetic modelling of the hydrothermal reaction of fly ash, Ca(OH)2 and CaSO4 in the preparation of desulfurant sorbents, Fuel, 2004, 83 (4), 525.
  • [17] LIU C.-F., SHIH S.-M., LIN R.-B., Kinetics of the reaction of Ca(OH)2/fly ash sorbent with SO2 at low temperatures, Chem. Eng. Sci., 2002, 57 (1), 93.
  • [18] LIN R.-B., SHIH S.-M., LIU C.-F., Structural properties and reactivities of Ca(OH)2/fly ash sorbents for flue gas desulfurization, Ind. Eng. Chem. Res., 2003, 42 (7), 1350.
  • [19] DAVINI P., Investigation of the SO2 adsorption properties of Ca(OH)2-fly ash systems, Fuel, 1996, 75 (6), 713.
  • [20] LEE K.T., BHATIA S., MOHAMED A.R., Preparation and characterization of sorbents modified from ash (waste material) for sulfur dioxide (SO2) removal, J. Mater. Cycles Waste, 2005, 7 (1), 16.
  • [21] HAN J., QIN L., YE W., LI Y., LIU L., WANG H., YAO H., Emission of polycyclic aromatic hydrocarbons from coal and sewage sludge co-combustion in a drop tube furnace, Waste Manage. Res., 2012, 30 (9), 875–882.
  • [22] LIU H., ZHANG Q., HU H., LIU P., HU X., LI A., YAO H., Catalytic role of conditioner CaO in nitrogen transformation during sewage sludge pyrolysis, Proc. Combust. Inst., 2015, 35 (3), 2759.
  • [23] HU H., LIU H., CHEN J., YAO H., LI A., LOW F., ZHANG L., Speciation transformation of arsenic during municipal solid waste incineration, Proc. Combust. Inst., 2015, 35 (3), 2883.
  • [24] LIU H., ZHANG Q., XING H., HU H., LI A., YAO H., Product distribution and sulfur behavior in sewage sludge pyrolysis. Synergistic effect of Fenton peroxidation and CaO conditioning, Fuel, 2015, 159, 68.
  • [25] FERNÁNDEZ J., RENEDO J., GAREA A., VIGURI J., IRABIEN J.A., Preparation and characterization of fly ash/hydrated lime sorbents for SO2 removal, Powder Technol., 1997, 94, 133.
Uwagi
PL
Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-d51d158f-f949-4b16-9a9b-fd6fcfaf6c37
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