Coke-oven gas synthesis ammonia conversion condensate treatment device and process thereof

• Main Authors: TAN DAIFU, SONG YALING, XIA WEIWEI, WANG YONGZHAN, CUI XUEXIA, JIA GUOYUN, JIANG PEIPEI, WANG HONGGE, ZHANG CHANGQIU, WANG YUXIAN, ZHANG LI, HAN LIJUAN
• Format: Patent
• Language: Chinese; English
• Published: 09.02.2024
• Subjects: AMMONIA; CHEMISTRY; COMPOUNDS THEREOF; CYANOGEN; INORGANIC CHEMISTRY; METALLURGY

The invention discloses a coke-oven gas synthesis ammonia conversion condensate treatment device and a process thereof, and belongs to the field of ammonia nitrogen-containing methanol wastewater treatment. Comprising an ammonia still connected with a reboiler, a tower top condenser with one end connected with the ammonia still, a reflux tank connected with the other end of the tower top condenser, a preheater arranged in front of the ammonia still and a methanol recovery tower connected with the reflux tank, a coke oven synthetic ammonia conversion condensate from a converter is preheated by a preheater and then is separated into ammonia and methanol gas by an ammonia still, the content of ammonia and methanol in a tower kettle residual liquid reaches the standard, and the ammonia and methanol can be directly used as circulating water supplement water after heat recovery; the methanol recovery tower is used for further separating tower top tail gas with relatively high methanol content from the ammonia still