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Abstract

A method for producing ¾-rich synthesis gas comprises the following steps: decomposing a hydrocarbon-containing fluid into an H₂/C-aerosol in a first hydrocarbon converter by supplying energy which is at least partly provided in the form of heat; introducing at least a first stream of the H₂/C-aerosol into a first sub-process which comprises the following steps: directing at least a part of the H₂/C-aerosol from the first hydrocarbon converter into a first C-converter; introducing CO₂ into the first C-converter and mixing the CO₂ with the H₂/C-aerosol introduced into the first C-converter; converting the mixture of H₂/C-aerosol and CO₂ into a synthesis gas at a temperature of 800 to 1700° C.; mixing additional H₂ with the synthesis gas for the production of H₂-rich synthesis gas. In a second sub-process running in parallel with the first sub-process, hydrogen H₂ and carbon dioxide CO₂ are produced from a hydrocarbon-containing fluid, wherein at least a portion of the CO₂ produced in the second sub-process is introduced into the first C-converter; and wherein at least a portion of the H₂ produced in the second sub-process is mixed with the synthesis gas from the first C-converter. The CO₂ which is needed for the conversion of C in the first C-converter can thereby be provided independently of an external source, and the entire operational sequence is easily controllable.

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