HYDROGENATION OF CARBON-MONOXIDE ON UNSUPPORTED FE-MN-K CATALYSTS FOR THE SYNTHESIS OF LOWER ALKENES - PROMOTER EFFECT OF MANGANESE
DSpace at IIT Bombay
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Title |
HYDROGENATION OF CARBON-MONOXIDE ON UNSUPPORTED FE-MN-K CATALYSTS FOR THE SYNTHESIS OF LOWER ALKENES - PROMOTER EFFECT OF MANGANESE
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Creator |
DAS, CK
DAS, NS CHOUDHURY, DP RAVICHANDRAN, G CHAKRABARTY, DK |
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Subject |
fischer-tropsch synthesis
mixed slurry reactor oxide catalysts iron catalysts selectivity phase reduction olefins activation carbon monoxide hydrogenation fe-mn-k catalysts fischer-tropisch synthesis lower alkenes promoter effect unsupported fe catalysts |
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Description |
Unsupported Fe-Mn-K catalysts prepared earlier by incorporating potassium in-situ during coprecipitation of iron- and manganese oxides have been found to exhibit good catalytic activity and high alkene selectivity in the C2-C4 range, during syngas conversion. The effect of manganese on the alkali promoted iron catalysts towards hydrocarbon synthesis was studied here. Manganese in moderate amount promotes catalytic activity as well as selectivity of lower alkenes. Using a catalyst containing about 20 mol-% Mn and 0.5% K, at 673 K, 3 kg/cm2 pressure, WHSV = 800 h-1 and H-2/CO = 1, it was possible to obtain good carbon monoxide coversion with 70-80% lower alkenes without formation of excess methane and carbon dioxide.
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Publisher |
ELSEVIER SCIENCE BV
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Date |
2011-07-25T06:22:21Z
2011-12-26T12:50:02Z 2011-12-27T05:35:58Z 2011-07-25T06:22:21Z 2011-12-26T12:50:02Z 2011-12-27T05:35:58Z 1994 |
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Type |
Article
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Identifier |
APPLIED CATALYSIS A-GENERAL, 111(2), 119-132
0926-860X http://dx.doi.org/10.1016/0926-860X(94)85046-1 http://dspace.library.iitb.ac.in/xmlui/handle/10054/6660 http://hdl.handle.net/10054/6660 |
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Language |
en
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