This is an advert stating that Power Gas Ltd, in Bowesfield Lane, were the leaders in designing and building a new type of steam reformer which could be made to produce either hydrogen or town gas. The basic process had been developed by ICI Billingham, using naphtha, a kind of cheap low grade petrol. ICI had needed to invent a new catalyst to cope with naphtha as steam reformers, up to that time, had used natural gas as a feedstock. Indeed, before the discovery of North Sea Gas, ICI were going downhill as they had had to rely on coal to make hydrogen. Billingham, in a sense, was a glorified gas works with all that this implies in terms of filth and expense.
Being in the same area there was a close relationship between ICI Billingham and Power Gas, so it was an obvious step to get Power Gas building the new type of steam reformer. Steam reforming using naphtha saved the ICI and also saved British Gas. The advert shows that Power Gas was the first to build steam reformers in a number of places and countries. One picture shows the overall advert, the other picture, plants that Power Gas had built.
Pictures and details courtesy of Fred Starr.