Abstract
The calcination characteristics, sulfation conversion, and sulfation kinetics of a white mud from paper manufacture at fluidized bed combustion temperatures were investigated in a thermogravimetric analyzer. Also, the comparison between the white mud and the limestone in sulfation behavior and microstructure was made. Although the white mud and the limestone both contain lots of CaCO3, they are different in the alkali metal ions content and microstructure. It results in a marked difference in sulfation behavior between the white mud and the limestone. The CaO derived from white mud achieves the maximum sulfation conversion of 83% at about 940 °C which is 1.7 times higher than that derived from limestone at about 880 °C. The shrinking unreacted core model is appropriate to analyze the sulfation kinetics of the white mud. The chemical reaction activation energy E a and the activation energy for product layer diffusion E p for the sulfation of the white mud are 44.94 and 55.61 kJ mol−1, respectively. E p for the limestone is 2.8 times greater than that for the white mud. The calcined white mud possesses higher surface area than the calcined limestone. Moreover, the calcined white mud has more abundant pores in 4–24 nm range which is almost optimum pore size for sulfation. It indicates that the microstructure of the white mud is beneficial for SO2 removal.
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References
Livraghi S, Paganini MC, Giamello E. SO2 reactivity on the MgO and CaO surfaces: a CW-EPR study of oxo-sulphurradical anions. J Mol Catal. 2010;322:39–44.
Sakizci M, Alver BE, Yorukogullari E. Thermal and SO2 adsorption properties of some lays from Turkey. J Therm Anal Calorim. 2011;103:435–41.
Trikkel A, Zevenhoven R, Kuusik R. Modelling SO2 capture by Estonian limestones and dolomites. Proc Est Acad Sci Chem. 2000;49:53–70.
Crnkovic PM, Milioli FE, Pagliuso JD. Kinetics study of the SO2 sorption by Brazilian dolomite using thermogravimetry. Thermochim Acta. 2006;447:161–6.
Anthony EJ, Bulewicz EM, Jia L. Reactivation of limestone sorbents in FBC for SO2. Prog Energy Combust Sci. 2007;33:171–210.
Trikkel A, Keelmann M, Kaljuvee T. CO2 and SO2 uptake by oil shale ashes: effect of pre-treatment on kinetics. J Therm Anal Calorim. 2010;99:763–9.
Kaljuvee T, Toom M, Trikkel A, Kuusik R. Reactivity of oil shale ashes in the binding of SO2. J Therm Anal Calorim. 2007;88:51–8.
Kaljuvee T, Trikkel A, Kuusik R. Decarbonization of natural lime-containing materials and reactivity of calcined products towards SO2 and CO2. J Therm Anal Calorim. 2001;64:1229–40.
Robertson A, Goidich S, Fan Z. 1300°F 800 MWe USC CFB boiler design study. In: Proceedings of the 20th International Conference on Fluidized Bed Combustion, Xian, China; 2009, p. 125–31.
Liu W, Yang J, Xiao B. Review on treatment and utilization of bauxite residues in China. Int J Miner Process. 2009;93:220–31.
Gorai B, Jana RK. Premchand, Characteristics and utilization of copper slag-review. Resour Conserv Recycl. 2003;39:299–313.
Wang SB, Ang HM, Tade MO. Novel applications of red mud as coagulant, adsorbent and catalyst for environmentally benign processes. Chemosphere. 2008;72:1621–35.
Yamada K, Harato F. SO2 removal from waste-gas by red mud slurry pilot test and operation results of the plant. Kagaku Kogaku Ronbun. 1982;8:32–8.
Fan HL, Li CH, Xie KC. Testing of iron oxide sorbent for high-temperature coal gas desulfurization. Energy Sour. 2005;27:245–50.
Cheng J, Zhou JH, Liu JZ, Cao XY, Cen KF. Physicochemical characterizations and desulfurization properties in coal combustion of three calcium and sodium industrial wastes. Energy Fuels. 2009;23:2506–16.
Lin S, Luo HJ. Preparation of soil nutrient amendment using white mud produced in ammonia-soda process and its environmental assessment. Trans Nonferrous Met Soc China. 2009;19:1383–8.
Zhu MX, Lee L, Wang HH, Wang Z. Removal of an anionic dye by adsorption/precipitation processes using alkaline white mud. J Hazard Mater. 2007;149:735–41.
Laursen K, Grace JR, Lim CJ. Enhancement of the sulfur capture capacity of limestones by addition of the Na2CO3 and NaCl. Environ Sci Technol. 2001;35:4384–9.
Laursen K, Kern AA, Grace JR, Lim CJ. Characterization of the enhancement effect of Na2CO3 on the sulfur capture capacity of limestones. Environ Sci Technol. 2003;37:3709–15.
Siagi ZO, Mbarawa M, Mohamed AR, Lee KT, Dahlan I. The effects of limestone type on the sulphur capture of slaked lime. Fuel. 2007;86:2660–6.
Stanmore BR, Gilot P. Review-calcination and carbonation of limestone during thermal cycling for CO2 sequestration. Fuel Process Technol. 2005;86:1707–43.
Anthony EJ, Granatstein DL. Sulfation phenomena in fluidized bed combustion systems. Prog Energy Combust Sci. 2001;27:215–36.
Li RY, Qi HY, You CF, Xu XC. Kinetic model of CaO/fly ash sorbent for flue gas desulphurization at moderate temperatures. Fuel. 2007;86:785–92.
Wu ZH, Kou P, Yu ZW. The modulation of desulphurization properties of calcium oxide by alkali carbonates. J Therm Anal Calorim. 2002;67:745–50.
Mohamed AR. Kinetic model for the reaction between SO2 and coal fly ash/CaO/CaSO4 sorbent. J Therm Anal Calorim. 2005;79:691–5.
Chrissafis K. Multicyclic study on the carbonation of CaO using different limestones. J Therm Anal Calorim. 2007;89:525–9.
Chrissafis K, Paraskevopoulos KM. The effect of sintering on the maximum capture efficiency of CO2 using a carbonation/calcination cycle of carbonate rocks. J Therm Anal Calorim. 2005;81:463–8.
Chrissafis K, Dagounaki C, Paraskevopoulos KM. The effects of procedural variables on the maximum capture efficiency of CO2 using a carbonation/calcination cycle of carbonate rocks. Thermochim Acta. 2005;428:193–8.
Wieczorek-Ciurowa K. Peculiarities of interactions in the CaCO3/CaO-SO2/SO3-air system. J Therm Anal Calorim. 1998;53:649–58.
Laursen K, Duo W, Grace JR, Lim CJ. Sulfation and reactivation characteristics of nine limestones. Fuel. 2000;79:153–63.
Mahuli SK, Agnihotri R, Chauk S, Ghosh-Dastidar A, Wei SH, Fan LS. Pore-structure optimization of calcium carbonate for enhanced sulfation. AIChE J. 1997;43:2323–35.
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This study was financially supported by Research Fund for the Doctoral Program of Higher Education of China (20100131120055).
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Li, Y., Sun, R., Zhao, J. et al. Sulfation behavior of white mud from paper manufacture as SO2 sorbent at fluidized bed combustion temperatures. J Therm Anal Calorim 107, 241–248 (2012). https://doi.org/10.1007/s10973-011-1537-2
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DOI: https://doi.org/10.1007/s10973-011-1537-2