A PROCESS FOR SAFE PRODUCTION OF PHOSGENE

摘要

In a process for safe production of phosgene (COCI2) from carbon monoxide and chlorine according to the reaction scheme CO (g) + Cl2 (g) -> COCI2 (g) in a plant with a capacity of phosgene below 10 t/hr, the CO is produced on site from a feed stock based mainly on CO2. The plant preferably comprises a solid oxide electrolysis cell (SOEC) stack system producing CO for use together with chlorine in the phosgene synthesis. This way of producing phosgene is based on using primary raw materials for which escape concentrations above 1000 ppm or even above 10000 ppm or 10% will not result in any health risk.