TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - The preferred ratio of H2O / EtOH in the reforming reaction is 0.8 - 10(more preferably 1.55) and that for O2/EtOH is 1.8 max.(more preferably 0.68. The preferred O2 source is air, and the preferred operating temperature is 700degreesC. The reforming catalyst is Ni or Ni+Cu supported on alpha alumina or silica. The content of Ni(or Ni+Cu) is less than or equal to 40% relative to total catalysts wt.(more preferably 2-20% Ni and 0-33% Cu, and especially 1.6% Cu and 16.7% Ni). The catalysts is reduced under H2 before use. The effluent from the reforming process includes CO, the content of which has to be reduced to a low value before reaching the fuel cell.This is effected in two stages:(a) by a water gas shift reaction (WGS) using a Co/Cu/Zn/Al/O catalyst of composition 3/8/20/16/53 at 400degreesC; and(b) a selective oxidation using a catalyst comprising 5 - 30% Cu on Al2O3-ZnO or 0.5 - 2% Rh or Ru on Al2O3, at 200degreesC. The installation comprises a unit for reforming of EtOH (1), a unit for reducing CO content (2) and a fuel cell (3).It also includes, after the fuel cell unit, a combustion unit for the combustion of methane and unconsumed hydrogen; this functions with a catalyst comprising 5-20% Ni supported on Al2O3, or 0.5 - 2% Pt or Pd supported on Al2O3 , or 0.5-2% Pt supported on CeO2-ZrO2 or CeO2 alone, at a temperature of 700degreesC. The system comprises a number of heat exchangers and re-heaters. EXAMPLE - The design of a proposed clean vehicle specifies that the autonomy obtained should be 500 km, a maximum power of 37 kW and an atmospheric rejection free from CO and CH4. The H2 flow necessary for a nominal power of 30 kW was calculated with a potential of 0.7V and stoichiometry of 1.2.The cell was tolerant to CO2 and CH4 at low concentrations.    The initial supply of water + EtOH was 63.3 kg, the vol ratio of H2O / EtOH being 1 : 2.1 and air was introduced at a molar ratio O2 / EtOH of 0.68.    The gaseous mixture emerging from the unit (7) had the composition : EtOH : 16.8% ; H2O : 25.1% ; O2 : 11% ; N2 : 45.7%. The effluent from the reforming unit contained :- H2 : 32.9% ; H2O : 12.95 ; CO : 12.9% ; CO2 : 9.1% ; CH4 : 1.4% ; N2 : 30.8%. The effluent from the WGS reactor(10) had the composition :- H2 : 35.9% ; H2O : 9% ; CO : 7.2% ; CO2 : 14.3% ; CH4 : 2.3% ; N2 : 31.3%.    The effluent from the selective oxidation reactor had the composition :- H2 : 28.4% ; H2O : 9.4% ; CO : a few ppm ; CO2 : 18.1% ; CH4 : 1.9% ; N2 : 42.2% ; The gaseous mixture emerging from the fuel cell had the composition :- H2 : 6.2% ; H2O : 12.4% ; CO2 : 23.7% ; CH4 : 2.5% ; N2 : 55.2% ; The residual H2 and CH4 were eliminated in the combustion unit. The final composition of the rejected gas consisted of : H2O : 17.1% ; CO2 : 19.1% ; N2 : 63.8% ;