The partial oxidation of methane to synthesis gas over Ni/a-Al 2 O 3 catalysts (1 and 5 wt.-% Ni loading, 71Β±160 and 250Β±355 mm particle diameter) was investigated in different types of fluidized-bed reactors, i.e., the bubbling fluidized bed (FlB), the spout fluid bed (SFB) and the internally circu
A fluidised-bed membrane reactor for the catalytic partial oxidation of methane to synthesis gas
β Scribed by L. Mleczko; T. Ostrowski; T. Wurzel
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 509 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0009-2509
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β¦ Synopsis
A fluidised-bed membrane reactor was proposed as reaction engineering meam for performing the catalytic partial oxidation of methane to synthesm gas (syngas) in a safe and stable nuumer, and to achieve high syng~ yields at elevated pressures and low temperatures. In ocder to analyse the potential of this reactor design a reaction engineering model was developed. Simulation studies performed with this model for palladium and ceramic membranes indicated that in the fluidi~d-bed membrane reactor higher syngas yields can be achieved compared to the fluidised bed. Furthermore, under certain conditions the integrated product separation allowed to overcome the thermodynamic constraints. Syng~ yield in the fluidhu~-bed membrane reactor strongly ~ on the permeation rate and the selectivity of the separation. For the ceramio membrane the interaction between membrane and bed hydrodynamics was found to be of primary im~ce; in order to achieve high syngas yields the separation unit should contact mainly with the emulsion phase.
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