Method of processing exhaust gas

(22) 18.12.2020

(43) 24.06.2021

(57) In a method of processing exhaust gas containing CO₂, such as exhaust gas from a cement production plant, the following steps are carried out: – burning fuel in the combustion reactor with the O₂ content of the exhaust gas being used as an oxidizing agent, – controlling the combustion in the combustion reactor so that the exhaust gas from the combustion reactor contains less than 10 vol. -% of oxygen and at least 80 vol.-% of a mixture of CO and CO₂, feeding the exhaust gas from the combustion reactor into a conversion reactor, in which the CO₂ and optionally the CO contained in the exhaust gas is converted into a hydrocarbon fuel.

(71) Holcim Technology Ltd, Grafenauweg 10, 6300 Zug (CH)

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