| Simultaneous Removal of COS and H_2S at Low Temperatures over Nanoparticle a-FeOOH Based Catalysts |
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| 作者姓名： | Zhihua Gao Chunhu Li Kechang Xie
State Key Lab of C Chemistry and Technology Institute of Coal Chemical Engineering Taiyuan University of Technology Taiyuan China |
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| 作者单位： | Zhihua Gao，Chunhu Li，Kechang Xie
State Key Lab of C1 Chemistry and Technology，Institute of Coal Chemical Engineering，Taiyuan University of Technology，Taiyuan 030024，China |
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| 摘 要： | Catalysts using a-FeOOH nanoparticles as the active ingredient were tested by a microreactor-chromatography assessing apparatus at atmospheric pressure between 25 and 60C with a gas hourly space velocity of 10,000 h-1, while the removal performance of H2S with catalysts was investigated using the thermal gravimetric method. The results show that the catalysts are highly active for COS hydrolysis at low temperatures (<60C) and high gas hourly space velocity, and the highest activity can reach 100%. The catalyst is particularly stable for 12 h, and no deactivation is observed. Nanoparticle a-FeOOH prepared using hydrated iron sulfate shows higher COS hydrolysis activity, and the optimum calcination temperature for the catalyst is 260C. In addition, the catalysts can remove COS and H2S simultaneously, and 60C is favorable for the removal of H2S. The compensation effect exists in nanoparticle-based catalysts.
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Simultaneous Removal of COS and H_2S at Low Temperatures over Nanoparticle a-FeOOH Based Catalysts |
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| Zhihua Gao,Chunhu Li,Kechang Xie
State Key Lab of C Chemistry and Technology,Institute of Coal Chemical Engineering,Taiyuan University of Technology,Taiyuan ,China.Simultaneous Removal of COS and H_2S at Low Temperatures over Nanoparticle a-FeOOH Based Catalysts[J].Journal of Natural Gas Chemistry,2003(1). |
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| Authors: | Zhihua Gao Chunhu Li Kechang Xie
State Key Lab of C Chemistry and Technology |
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| Institution: | Zhihua Gao,Chunhu Li,Kechang Xie
State Key Lab of C1 Chemistry and Technology,Institute of Coal Chemical Engineering,Taiyuan University of Technology,Taiyuan 030024,China |
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| Abstract: | Catalysts using a-FeOOH nanoparticles as the active ingredient were tested by a microreactor-chromatography assessing apparatus at atmospheric pressure between 25 and 60C with a gas hourly space velocity of 10,000 h-1, while the removal performance of H2S with catalysts was investigated using the thermal gravimetric method. The results show that the catalysts are highly active for COS hydrolysis at low temperatures (<60C) and high gas hourly space velocity, and the highest activity can reach 100%. The catalyst is particularly stable for 12 h, and no deactivation is observed. Nanoparticle a-FeOOH prepared using hydrated iron sulfate shows higher COS hydrolysis activity, and the optimum calcination temperature for the catalyst is 260C. In addition, the catalysts can remove COS and H2S simultaneously, and 60C is favorable for the removal of H2S. The compensation effect exists in nanoparticle-based catalysts. |
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| Keywords: | nanoparticle a-FeOOH COS hydrolysis removal of H2S compensation effect |
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