PROCESS FOR THE PREPARATION OF SYNGAS FROM CARBONACEOUS WASTE MATERIAL.

The applicant has now found a process for the production of syngas, which uses CO2 as a starting material, which does not require large amounts of hydrogen and which moreover uses waste carbonaceous material, without resorting to large amounts of hydrogen. This process, which forms the object of the present invention, comprises the following stages: - a stage a) comprising the reaction [R1] in which the carbonaceous material is reacted with 25 carbon dioxide to obtain carbon monoxide according to the following reaction scheme: [R1] CO2 + C = 2 CO; - a stage b) of producing hydrogen and adding it to the carbon monoxide obtained in stage a) to obtain syngas, characterized in that stage b) comprises at least one of the following stages: 30 b1) the carbon monoxide from the previous stage is reacted with water vapour to obtain carbon dioxide and hydrogen according to the following reaction scheme: [R2] CO + H2O = CO2 + H2 b2) producing hydrogen by electrolysis of water, which is added to the carbon monoxide from stage a). 2 A further object of the present invention is the unit in which stages a) and b1) are carried out, as well as the relative apparatus comprising the aforementioned unit