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| Thesis Name： |
Detailed kinetics of the Fischer-Tropsch synthesis over an industrial Fe-Mn catalyst during early period of reaction |
| Usage： |
an alternate method for synthesizing liquid fuels |
| Keyword： |
Fischer-Tropsch synthesis, Fe-Mn catalyst, Kinetic |
| Remarks： |
The detailed kinetics of Fischer-Tropsch synthesis (FTS) over an industrial Fe-Mn catalyst during early period of reaction (200 h Time on stream (TOS)) was studied in a continuous fixed bed reactor under operation conditions of the low temperature and low H2/CO ratio. 39 combined kinetic models of FTS based on the LHHW type mechanism were scanned with non-linear regression method. The conclusion in this work is consistent with that obtained in our previous work under higher reaction temperature and H2/CO ratio of syngas. The FTS model based on alkylidene mechanism could produce a good fit of experimental data. In this work, the estimated activation energy for chain growth is 60.55 kJ.mol-1, which is lower than that of our previous study (75.52kJ.mol-1), indicating that the energy barrier for the chain growth is lower for the catalyst with shorter TOS. This can well interpret the trend to higher selectivity of the lower molecular hydrocarbon, especially the methane, with longer TOS observed in our previous work, which probably results from phase change of catalyst in the course of the synthesis reaction. |
| Original file： |
No File
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Promulgator Detail |
| Full name: |
hichem |
| Country: |
CN |
| City: |
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| Company Name: |
hichem |
| Homepage: |
http://www.teloon.com |
| E-mail: |
reply |
| Phone: |
86-411-82819585 |
| Fax: |
86-411-82819612 |
| Company Address: |
Renming Road, Dalian city, Lianning pro,china |
| Zip/Postal Code: |
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| Introduction: |
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