1 results about "Coke deposition" patented technology

The application discloses a TDI decoking process system and application thereof in a TDI production process. The TDI decoking process system comprises a decoking tower, a first circulating pump, a tower kettle reboiler and a wiped film evaporator. The tower kettle liquid after decoking of the decoking tower is reprocessed through the added wiped film evaporator, so that the content of the coke in the tower kettle liquid is reduced, and therefore, the heat exchange effect of the heat exchanger caused by the coke deposit is avoided. The TDI decoking process system is applied to the TDI production process. Due to the improvement of the decoking process system, the overall operation stability is higher, and the service life is longer.