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

为研制一种适用于直接碳固体氧化物燃料电池(DC-SOFC)的高温脱硫剂,以Zr OCl2·8H2O和Mn(NO3)2为原料,通过分步沉淀法制备出不同Mn负载量的Mn-Zr-O复合高温脱硫剂。通过X射线衍射仪(XRD)、BET比表面积等手段对脱硫剂进行表征,并在800℃高温条件下进行脱硫性能评价。研究结果表明:当Zr与Mn物质的量比为10∶4时比表面积最大,脱硫评价时穿透时间最长;当Zr与Mn物质的量比为10∶1时,Mn2O3在Zr O2上的分散性最好,脱硫精度最高,能够达到2×10-6以下,满足直接碳固体氧化物燃料电池对合成气中最低硫含量(

In order to research and develop high temperature desulphurizer suitable for Direct Carbon Solid Oxide Fuel Cell ( DC- SOFC) , taking Zr 0CI2 8H2O an d Mn ( NO3) 2as the raw materials, a fractional precipitation method was applied to prepare Mn- Zr- 0 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 performance s was conducted under high temperature of 800 °C.The study results showed that when molar ratio between Zr and Mn was 10: 4, the specific surface area would be t he 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, dispe rsibility of Mn2O3 on Zr 02 would be the best and the desulfurization accuracy would be the highest with below2 x 10- 6. A requirement of the lowest sulfur content ( < 9x 10- 6) in syngas could be met for the DC- SOFC.

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)；