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《Coal Science and Technology》 2014-12
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Study on Preparation and Desulfurization Performances of High Temperature Desulfurizer Applied to DC-SOFC

LIU Xiao-juan;YIN Wei-feng;ZHOU Xin-ping;WEI Tao;GAO Qing-yu;WANG Shao-rong;School of Chemical Engineering,China University of Mining and Technology;Engineering and Technology Company Limited,China Coal Technology and Engineering Group;Shanghai Institute of Ceramics,Chinese Academy of Sciences;  
In order to research and develop high temperature desulphurizer suitable for Direct Carbon Solid Oxide Fuel Cell( DC- SOFC),taking Zr OCl2·8H2O and Mn( NO3)2as the raw materials,a fractional precipitation method was applied to prepare Mn- Zr- O complex high temperature desulfurizer with different Mn loadings. The features of the desulfurizer were explained with X- ray diffraction,BET specific surface area and other means and an evaluation on the desulfurization performances was conducted under high temperature of 800 ℃.The study results showed that when molar ratio between Zr and Mn was 10∶ 4,the specific surface area would be the maximum and when the desulfurization evaluation was conducted,the penetration tine would be the longest. When molar ratio between Zr and Mn was 10∶ 1,dispersibility of Mn2O3 on Zr O2 would be the best and the desulfurization accuracy would be the highest with below 2 × 10- 6. A requirement of the lowest sulfur content( 9 × 10- 6) in syngas could be met for the DC- SOFC.
【Fund】: 江苏省自然科学基金资助项目(BK2011006);; 江苏省普通高校研究生创新研究计划资助项目(2013XK05)
【CateGory Index】: TM911.4
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