Producer Gas for Road Transport
Immediately before, and during the 1939–45 war a considerable amount of research and development work on the use of producer gas for road transport was carried out by the Fuel Research Station, in close co-operation with several other interested organizations. Road tests showed that none of the existing commercial producers was entirely satisfactory with the fuels most readily available in this country. A new dry-blast cross-draught producer, known later as the Government Emergency Producer, capable of using either anthracite or low-temperature coke, was therefore developed. At the same time the effect of variations in the quality of the fuel was examined and a specification for transport producer fuel was prepared. A survey of potential fuel supplies revealed that the output of fuel complying with the specification, although considerable, was insufficient for general use. Accordingly a modified Emergency Producer—known as the Government Utility Producer—was developed, and this was capable of using coke prepared under special conditions in “high temperature” retorts, thus greatly extending the amount of available fuel. “Activation” of the fuel with sodium carbonate effected a further extension. The serious problem of engine wear was solved by the development of new types of filter to remove dust from the gas. The present position is that, although producer gas is a poor substitute for petrol in a converted petrol-driven vehicle, there is no doubt that transport could be operated on a large scale on producer gas should the necessity arise.