| abstract |
A method for producing a chemical compound from a raw material containing carbon dioxide, comprising the following steps: a) obtaining a feed stream consisting mainly of carbon dioxide; b) electrolysis in the carbon dioxide electrolysis step in the feed stream to produce a first gas stream containing carbon monoxide and a second gas stream containing oxygen, with the molar ratio of carbon monoxide to oxygen in the electrolysis step approximately 1: 0.5; c) adjusting the composition so that the first gas stream or the second gas stream or both gas streams include carbon dioxide, either by performing an incomplete CO conversion, or by blowing one or both gas streams with CO-containing gas, or at some stage between by an electrolyzer and an oxidative carbonylation reactor by diluting one or both gas streams with a gas containing CO, while maintaining the total molar ratio of carbon monoxide to oxygen in the range of about 1: 0.5; and d) introducing the first and second process streams to the reaction step and reacting the first and second process streams, together or sequentially, with the substrate to form a chemical compound using oxidative carbonylation reaction with carbon monoxide and oxygen contained in the feed stream. |