Method and device for separating harmful substances in water vapor and method for treating semi-coke wastewater

• Main Authors: ZHANG XIAOLI, LI XINGYUAN, DONG LIXUE, ZHAO YINGDONG, ZHAI YUAN, ZHAI LICHUN
• Format: Patent
• Language: Chinese; English
• Published: 08.07.2022
• Subjects: CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention discloses a method and device for separating noxious substances in water vapor and a method for treating semi-coke wastewater through the method and device, and the method comprises the following steps: converting the semi-coke wastewater into water vapor containing the noxious substances through a concentration device, and introducing the water vapor into a high-pressure cavity of the device for separating the noxious substances in the water vapor, the harmful substances are liquefied in the medicament solution in the cavity, and the harmful substances and medicaments in the solution are subjected to neutralization reaction; a solution in the high-pressure cavity enters the low-pressure cavity of the device to be boiled and gasified, pure water vapor is discharged, cooled water flows back into the high-pressure cavity to cool the high-pressure cavity, and the conversion process that harmful water vapor enters the cavities to be liquefied and then gasified is achieved through circulation and dif