| 摘要 |
The invention relates to an integrated method for producing alkylene oxides and alkylene glycols. For this purpose, an alkylene oxide system and an alkylene glycol system are combined with each other, and the water coming from the alkylene oxide system and other constituents of the reaction mixture are introduced into the alkylene glycol system. In this way, alkylene glycols that have already been produced in the alkylene oxide system can be recovered as valuable substances, and the water circuit in the alkylene glycol system can be eliminated or dramatically reduced. In addition, the energy-intensive treatment of the process water from the alkylene oxide system can be eliminated. The integration of the two methods results overall in improved energy efficiency and the conservation of resources in the treatment of residues from the process. |
