Removing and recycling device for methyl formate in dimethyl oxalate synthesis

The utility model provides a device for removing and recycling methyl formate in dimethyl oxalate synthesis. The device comprises a dimethyl oxalate synthesis system, a waste gas and waste liquid incinerator and an ethylene glycol synthesis system, the dimethyl oxalate synthesis system comprises a dimethyl oxalate synthesis unit and a methyl formate separation tower; a gas phase outlet of the methyl formate separation tower is connected with a gas inlet of the waste gas and waste liquid incinerator; the ethylene glycol synthesis system comprises an ethylene glycol synthesis steam heater and an ethylene glycol synthesis unit; and a gas outlet of the waste gas and waste liquid incinerator is connected with a gas inlet of the ethylene glycol synthesis steam heater. According to the device, on one hand, environmental pollution caused by the fact that methyl formate is directly incinerated and then discharged to the atmosphere is avoided, meanwhile, hot steam obtained after incineration is used for synthesis of et