Purification device and process suitable for high-boiling-point chemical raw materials

• Main Authors: FAN HAIPING, LIU JUN, WANG YUNLONG, ZHANG ZHIJIANG, LIU ZHANMING, WANG LIJUAN, WANG XUEBIN
• Format: Patent
• Language: Chinese; English
• Published: 28.07.2020
• Subjects: BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; FLUES; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; RANGES; REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES; SEPARATION; TRANSPORTING; VENTILATING; WEAPONS

The invention relates to a purification device suitable for high-boiling-point chemical raw materials, which comprises a purification tower and a hot-blast stove. The purification device, by fully utilizing the waste heat of the hot-blast stove, enables a combustion system, a waste heat boiler and a tower body to be naturally integrated. Overall distribution and centralized management of in-plantenergy are realized; therefore, the extracted fraction has higher purifty, and the height of the tower body is smaller. The temperature of a flue gas outlet can be controlled below 140 DEG C, adverseprocess conditions such as coking, carbon deposition, sublimation, atomization or easy formation of foam are avoided, and deep processing processes of rectification and distillation are innovated. Meanwhile, a cooling device is arranged outside the purification tower, so that the tower height is reduced, the cooling efficiency of the tower is improved, the fraction temperature before tower discharge is reduced and the heat