Steam reforming is carried out industrially on a large scale
to produce town gas and in recent years attention has been focused
at the production of substitute natural gas (SNG) by steam reforming.
The production of SNG which is predominantly methane, is favoured by
carrying out the reaction at pressures greater than 100 bar and at
temperatures below 400°C. This reaction is carried out industrially
in continuous flow tubular reformers and normally several process
stages are required.
The object of the present work was to study the steam reforming
of hydrocarbons at pressures greater than 100 bar and temperatures below
below 400°C. For this two laboratory rigs were constructed employing
internal fixed bed reactors. Commercially available steam reforming
catalysts (comprising mainly nickel) were found to be inactive at high
pressures so a catalyst comprising ruthenium, zinc and alumina was
developed for use under these conditions. [Continues.]
A doctoral thesis submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.