Exploration on the mechanism of coal desulfurization using microwave irradiation / acid washing method
作者： Sihao Weng , Jie Wang
DOI: 10.1016/0378-3820(92)90022-I
关键词: Coal 、 Flue-gas desulfurization 、 Microwave 、 Phase (matter) 、 Chemistry 、 Troilite 、 Mössbauer spectroscopy 、 Pyrite 、 Pyrrhotite 、 Inorganic chemistry
摘要: The transformations of Fe-S compounds intrinsic in coal before and after the microwave irradiation/acid-washing treatment were examined by Mossbauer spectroscopy 57Fe. results for phase analyses show that heating can induce situ thermo-desulfurizing reactions between pyrite its surrounding reactants present was converted into HCl-soluble species both pyrrhotite Fe1-xS (0 < χ ≦ 0.125) troilite FeS exposure. A 97% decrease inorganic sulfur content achieved increasing irradiation time to 100 seconds combining with successive acid-washing treatment.
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sci-hub.se 参考文章(10)
G.E. Fanslow, D.D. Bluhm, S.O. Nelson, Dielectric heating in mixtures containing coal and pyrite The Journal of microwave power. ,vol. 15, pp. 187- 191 ,(1980) , 10.1080/16070658.1980.11689201
Joseph M. Lambert, George Simkovich, Philip L. Walker, Production of pyrrhotites by pyrite reduction Fuel. ,vol. 59, pp. 687- 690 ,(1980) , 10.1016/0016-2361(80)90019-8
Arun S. Bommannavar, Pedro A. Montano, Mössbauer study of the thermal decomposition of FeS2 in coal Fuel. ,vol. 61, pp. 523- 528 ,(1982) , 10.1016/0016-2361(82)90174-0
D. Bluhm, G. Fanslow, S. Nelson, Enhanced magnetic separation of pyrite from coal after microwave heating IEEE Transactions on Magnetics. ,vol. 22, pp. 1887- 1890 ,(1986) , 10.1109/TMAG.1986.1064686
Arthur N. Thorpe, Frank E. Senftle, Corrinne Alexander, Frank T. Dulong, Robert B. LaCount, S. Friedman, Oxidation of pyrite in an anoxic atmosphere Fuel. ,vol. 66, pp. 147- 153 ,(1987) , 10.1016/0016-2361(87)90232-8
Pedro A. Montano, Prem P. Vaishnava, James A. King, Edward N. Eisentrout, Mössbäuer study of decomposition of pyrite in hydrogen Fuel. ,vol. 60, pp. 712- 716 ,(1981) , 10.1016/0016-2361(81)90224-6
I. S. Jacobs, P. D. Zavitsanos, J. A. Golden, Tracking pyritic sulfur in the microwave desulfurization of coal Journal of Applied Physics. ,vol. 53, pp. 2730- 2732 ,(1982) , 10.1063/1.330949
I. S. Jacobs, Lionel M. Levinson, H. R. Hart, Magnetic and Mössbauer spectroscopic characterization of coal Journal of Applied Physics. ,vol. 49, pp. 1775- 1780 ,(1978) , 10.1063/1.324864
Pedro A. Montano, Barry Granoff, Stoichiometry of iron sulphides in liquefaction residues and correlation with conversion Fuel. ,vol. 59, pp. 214- 216 ,(1980) , 10.1016/0016-2361(80)90170-2
S.O. Nelson, G.E. Fanslow, D.D. Bluhm, Frequency Dependence of the Dielectric Properties of Coal The Journal of microwave power. ,vol. 15, pp. 277- 282 ,(1980) , 10.1080/16070658.1980.11689212