| STUDY OF THE COPRECIPITATED IRON/MANGANESE FISCHER-TROPSCH CATALYSTS |
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| 引用本文： | REN Qi-Zhi, ZHANG Zhi-Xin, ZHOU Jing-Lai (Institute of Coal Chemistry The Chinese Academy of Sctences Taiyuan,Shanxi 030001 To whom correspondence should be addressed). STUDY OF THE COPRECIPITATED IRON/MANGANESE FISCHER-TROPSCH CATALYSTS[J]. 天然气化学杂志, 1996, 5(2): 152-160 |
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| 作者姓名： | REN Qi-Zhi ZHANG Zhi-Xin ZHOU Jing-Lai (Institute of Coal Chemistry The Chinese Academy of Sctences Taiyuan Shanxi 030001 To whom correspondence should be addressed) |
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| 作者单位： | Institute of Coal Chemistry The Chinese Academy of Sctences Taiyuan，Shanxi 030001 To whom correspondence should be addressed |
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| 摘 要： | IntroductionInFTsynthesis,metalMnhasbeenregardedasanicepromotertoincreaselightolefinselectivity.Coprecipitationhasbeenusedextensivelyinthepreparationofcommercialcatalysts.AnumberofpublicationsdealingwiththerelationbetWcenphysical-chemistry'proPertiesofcatalystsandFTs}nthesishaveappeared,butdifferentcatal})stcompositionsandpreparationconditi0nsmakedifferentconclusions.Therearetu)omainrespects.0neisthatcarelystswithhighacivityandolefinselectivityhavedifferentMMieratiovaryingoverawiderange(Mn…
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STUDY OF THE COPRECIPITATED IRONIMANGANESE FISCHER-TROPSCH CATALYSTS |
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| Qizhi Ren,Zhixin Zhang,Jinglai Zhou. STUDY OF THE COPRECIPITATED IRONIMANGANESE FISCHER-TROPSCH CATALYSTS[J]. Journal of Natural Gas Chemistry, 1996, 5(2): 152-160 |
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| Authors: | Qizhi Ren Zhixin Zhang Jinglai Zhou |
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| Affiliation: | Institute of Coal Chemistry |
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| Abstract: | The structure of Fe/Mn catalysts after calcination, reduction and FT synthesis was investigated by means of MES and XRD. With the increase of Mn content, the catalysts gradually changed from magnetic to superparamagnetic state. Therefore, the reduction of catalysts was retarded.FT performance of catalysts may be related with the structure of spinel (Fel-y Mny,)3O4 and the value of y. The presence of MnCO3 and MnO could also favor the FT performance. In iron-rich and manganese-rich catalysts, Mn mainly acted as an electronic and structural promoter respectively. For the latter samples, more complex phases were present and lnorc reactions were in competition during the FT performance. |
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| Keywords: | FT synthesis co-precipitated Fe/Mn catalyst solid solution |
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