Abstract: The invention relates to a system and process for producing liquid hydrocarbons from a calcium carbonate feed-stock involving (i) liberation of a carbon dioxide gas from the heated calcium carbonate feedstock; (ii) filtering impurities from the extracted carbon dioxide of step (i); (iii) reacting the extracted carbon dioxide obtained in step (i) with a dihydrogen gas to form a methanol feedstock; (iv) isolating the cooled methanol feedstock formed in step (iii); (v) catalytically converting at least part of the methanol feedstock obtained in step (iii) at elevated temperature and pressure into aliphatic and aromatic liquid hydrocarbons; and (vi) isolating the decompressed liquid hydrocarbon product obtained in step (v).

Abstract: The invention relates to a system and process for producing liquid hydrocarbons from a calcium carbonate feed-stock involving (i) liberation of a carbon dioxide gas from the heated calcium carbonate feedstock; (ii) filtering impurities from the extracted carbon dioxide of step (i); (iii) reacting the extracted carbon dioxide obtained in step (i) with a dihydrogen gas to form a methanol feedstock; (iv) isolating the cooled methanol feedstock formed in step (iii); (v) catalytically converting at least part of the methanol feedstock obtained in step (iii) at elevated temperature and pressure into aliphatic and aromatic liquid hydrocarbons; and (vi) isolating the decompressed liquid hydrocarbon product obtained in step (v).