| H2循环再生对烟气脱硫V2O5-CoO/AC催化-吸附剂的二次脱硫活性的影响 |
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| 引用本文： | 邢新艳,刘振宇,肖勇,赵有华,杨建丽.H2循环再生对烟气脱硫V2O5-CoO/AC催化-吸附剂的二次脱硫活性的影响[J].燃料化学学报,2009,37(3):367-372. |
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| 作者姓名： | 邢新艳 刘振宇 肖勇 赵有华 杨建丽 |
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| 作者单位： | 1.State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China,;
2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China;
3.State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | 烟气脱硫后的V2O5-CoO/AC催化 吸附剂在H2气氛下再生，并将再生尾气连续返回反应器，可以同时达到再生和资源化制备硫磺的目的。着重考察了不同情况下H2循环再生后V2O5-CoO/AC的二次脱硫活性，结果表明，硫磺制备要求系统中的硫在固相和气相之间发生多次形态转变，再生后催化-吸附剂上的残余硫使二次脱硫活性有所下降。主要原因是催化-吸附剂上的残余硫占据了脱硫所需的微孔，增加了表面酸量。再生后的H2吹扫可以将部分残余硫以H2S的形式赶出，提高二次脱硫硫容。NH3表面改性也可以降低表面酸量，提高二次脱硫硫容。
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| 关 键 词： | 五氧化二钒 氧化钴 活性焦 二氧化硫 氢气 催化 吸附剂再生 |
| 收稿时间： | 2008-08-13 |
| 修稿时间： | 2008-12-02 |
Effect of H_2-regeneration on SO_2 removal activity of V_2O_5-CoO/AC |
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| XING Xin-yan,LIU Zhen-yu,XIAO Yong,ZHAO You-hua,YANG Jian-li.Effect of H_2-regeneration on SO_2 removal activity of V_2O_5-CoO/AC[J].Journal of Fuel Chemistry and Technology,2009,37(3):367-372. |
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| Authors: | XING Xin-yan LIU Zhen-yu XIAO Yong ZHAO You-hua YANG Jian-li |
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| Institution: | 1.State Key Laboratory of Coal Conversion;Institute of Coal Chemistry;Chinese Academy of Sciences;Taiyuan 030001;China;2.Graduate University of Chinese Academy of Sciences;Beijing 100049;3.State Key Laboratory of Chemical Resource Engineering;Beijing University of Chemical Technology;Beijing 100029;China |
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| Abstract: | Elemental sulfur can be produced simultaneously during H2-regeneration of SO2-adsorbed V2O5-CoO/AC catalyst-sorbent when effluent gas of the regeneration is recycled back to the reactor. SO2 removal activities of the catalyst-sorbents after the regeneration under different conditions were studied in detail. It is found that elemental sulfur production requires transformation of sulfur forms between the solid phase and the gas phase, which results in residual sulfur in the catalyst-sorbent and a decrease in ... |
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| Keywords: | V2O5 CoO activated carbon SO2 H2 regeneration |
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