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Fuel Processing by editors, Wolf Vielstich, Arnold Lamm, Hubert A. Gasteiger

By editors, Wolf Vielstich, Arnold Lamm, Hubert A. Gasteiger

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6 Selectivities as determined for n-octane, isooctane and a 1:1 mixture thereof over a rhodium coated ceramic foam [65]. 7 Selectivities as determined for n-octane and isooctane over a rhodium coated ceramic foam of different pore sizes, described as ppi (pores per inch) [65]. homogeneous reactions in the larger pores favouring the generation of light hydrocarbons rather than syngas (carbon monoxide and hydrogen). However, numerical simulations revealed that homogeneous gas phase chemistry alone could not explain the experimental results.

20). These measurements revealed two remarkable facts. 19 Effect of S/C ratio and O/C ratio [here expressed as the air ratio l ¼ (O/C)/4] on carbon formation for methane steam reforming; pressure, 1 bar; feed pre-heating temperature 400  C [66]. 9; T ¼ 600–650  C [56]. was only little water consumption by steam reforming. Secondly, the carbon dioxide was formed almost exclusively in the first section of the reactor and this was almost independent of the reaction temperature. Thus the conclusion could be that in autothermal reformers partial oxidation and total oxidation are taking place in parallel and steam reforming takes place consecutively.

It is performed by different techniques such as the cool flame technology, pyrolysis, catalytic cracking and steam cracking. Catalytic pre-reforming is usually operated at much lower temperatures compared with the conventional reforming processes, specifically between 350 and 550  C to prevent carbon formation [46]. Adiabatic pre-reforming is widely used in the chemical and petrochemical industry for hydrogen and synthesis gas production [81]. 5). 0 depending on the feedstock [81]. 0 for naphtha and liquefied petroleum gas are applied.

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