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Chemcial Industry and Engineering 2008, Vol. 25 Issue (5) :386-388    DOI:
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Structure and Performance of Pre-Sulfurized Catalyst LaCoO_3
QIN Xin-chao,MA Zhi,HE Xin-yan(School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China)
(School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China

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Abstract The catalytic activities of perovskite LaCoO_3 and that after pre-sulfurized in the reduction of SO_2 by CO were analyzed.It was found that the pre-sulfurized catalyst LaCoO_3 can observably decrease the starting reaction temperature and the complete conversion temperature.The sulfurization process of perovskite LaCoO_3 was discussed by XRD.The phase transformation of catalysts was investigated.The results showed that the catalysts were the mixture of La_2O_2S,CoS_2,La_2(SO_4)_3 and La_2O_3.
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Received 2008-09-15; published 2008-09-15
Cite this article:   
QIN Xin-chao,MA Zhi,HE Xin-yan.Structure and Performance of Pre-Sulfurized Catalyst LaCoO_3[J]  Chemcial Industry and Engineering, 2008,V25(5): 386-388
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