Process for the production of methanol

Abstract

The invention relates to a process for the production of methanol, comprising the process steps: a) acidifying seawater and heating it to a temperature of at least 45°C; b) removing oxygen from the gas mixture obtained in step a) to obtain purified carbon dioxide; c) distilling a portion of the low-carbon-dioxide seawater remaining after extraction in step a) to obtain distilled water and a brine; d) carrying out electrolysis with the distilled water from step d); e) obtaining acid and an alkaline residue from the brine from step c); f) using the acid obtained in step e) to acidify the seawater in step a); g) recovering at least a portion of the waste heat generated in steps b) to e) and using it to heat the seawater in step a).h) Synthesis of methanol from the hydrogen from step d) and the carbon dioxide from step b) and separation of the methanol from the product mixture.

Description

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