- Title
- Reaction of nitrous oxide with methane to produce synthesis gas (CO + H₂); a thermodynamic and catalytic analysis
- Creator
- Khan, Naseer A.; Kennedy, Eric M.; Dlugogorski, Bogdan Z.; Adesina, Adesoji A.; Stockenhuber, Michael
- Relation
- Chemeca 14: Processing Excellence; Powering Our Future. Proceedings from Chemeca 14: Processing Excellence; Powering Our Future (Perth, W.A. 28 September - 1 October, 2014)
- Relation
- http://www.icheme.org/chemeca2014/program/papers.aspx
- Publisher
- Engineers Australia
- Resource Type
- conference paper
- Date
- 2014
- Description
- A thermodynamic and kinetic (experimental study of N₂O with CH₄ to synthesis gas (H₂+CO) formation was investigated under various reaction conditions. The experimental study was carried out over Co-ZSM-5 as catalyst in a fixed bed reactor. The effect of temperature (270 °C - 570 °C) and molar feed ratio (N₂O/CH₄ = 1, 3, and 5) was examined in order to determine conditions for maximising H₂ yield. The results show that for the molar feed ratios (N₂O/CH₄) of 1 and 3, N₂O is the limiting reactant. The thermodynamic and kinetic analyses of the reaction having a limiting N₂O reactant in reactant feed (N₂O/CH₄) shows that H₂ yield steadily increased with increase in temperature and the level of CH₄ conversion. Furthermore, the maximum attainable (from thermodynamic calculations) H₂ yield at 550 °C is about 20%. While thermodynamic predictions of H₂, yield drops to zero in presence of excess of N₂O in reactant feed (N₂O/CH₄ = 5). Over Co-ZSM-5 catalyst and with a molar reactant feed ratio of (N₂O/CH₄) of 5, the H₂ yield first increases to 10% with rise in temperature and then drops to zero at relatively higher range of temperatures (above 425 °C). The synthesis gas production from partial oxidation of CH₄ with N₂O in the partial oxidation of CH₄ could lead to emission reductions. This will also give a new route for H₂ generation.
- Subject
- Gibbs free energy minimization; N₂O; CH₄; synthesis gas
- Identifier
- http://hdl.handle.net/1959.13/1293822
- Identifier
- uon:18679
- Identifier
- ISBN:9781922107381
- Language
- eng
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