De-oxygenation of CO2 by using Hydrogen, Carbon and Methane over Alumina-Supported Catalysts
| Main Authors: | Raskar, R.Y. , Kale, K.B. , Gaikwad, A.G. |
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| Format: | Article PeerReviewed application/pdf |
| Terbitan: |
Dept. of Chemical Engineering, Diponegoro University
, 2012
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| Subjects: | |
| Online Access: |
http://eprints.undip.ac.id/35720/1/bcrec_v7n1_y2012_1631_p59-69.pdf http://ejournal.undip.ac.id/index.php/bcrec/article/view/1631 http://eprints.undip.ac.id/35720/ |
Daftar Isi:
- The de-oxygenation of CO2 was explored by using hydrogen, methane, carbon etc., over alumina supported catalysts. The alumina-supported ruthenium, rhodium, platinum, molybdenum, vanadium and magnesium catalysts were first reduced in hydrogen atmosphere and then used for the de-oxygenation of CO2. Furthermore, experimental variables for the de-oxygenation of CO2 were temperature (range 50 to 650 oC), H2/CO2 mole ratios (1.0 to 5), and catalyst loading (0.5 to 10 wt %). During the de-oxygenation of CO2 with H2 or CH4 or carbon, conversion of CO2, selectivity to CO and CH4 were estimated. Moreover, 25.4 % conversion of CO2 by hydrogen was observed over 1 wt% Pt/Al2O3 catalyst at 650 oC with 33.8 % selectivity to CH4. However, 8.1 to 13.9 % conversion of CO2 was observed over 1 wt% Pt/Al2O3 catalyst at 550 oC in the presence of both H2 and CH4. Moreover, 42.8 to 79.4 % CH4 was converted with 9 to 23.1 % selectivity to CO. It was observed that the de-oxygenation of CO2 by hydrogen, carbon and methane produced carbon, CO and CH4. © 2012 BCREC UNDIP. All rights reserved