Process for producing synthesis gas by means of the microwave heating of organic substrates

[EN] The invention relates to a process for producing synthesis gas by means of the microwave heating of organic residues, based on producing synthesis gas by means of microwave heating in two steps. Initially, the organic substrate, together with a microwave susceptor, is subjected to microwave heating, without oxygen, to temperatures of between 400ºC and 800ºC, thereby producing a synthesis gas, a carbonaceous residue, and a liquid fraction of pyrolysis oils. Subsequently, the oils form the first step are mixed and heated in a microwave oven, without oxygen, to a temperature greater than 700ºC, thereby producing a synthesis gas and the carbon-enriched susceptor. The whole process produces only synthesis gas and a carbonaceous residue.