Chlorination reaction tail gas purification and resource utilization system

• Main Authors: LIU GANG, LI JIE, CHI CHANGWEI, QIU XIAOHAO, WANG ZHIWEI
• Format: Patent
• Language: Chinese; English
• Published: 07.11.2023
• Subjects: CHEMISTRY; COMPOUNDS THEREOF; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention relates to a chlorination reaction tail gas purification and resource utilization system, the system comprises a hydrochloric acid absorption unit, a hydrochloric acid dechlorination unit and a sodium hypochlorite unit, the hydrochloric acid absorption unit is respectively communicated with the hydrochloric acid dechlorination unit and the sodium hypochlorite unit, and a hydrochloric acid mist demister is arranged between the hydrochloric acid absorption unit and the sodium hypochlorite unit; the hydrochloric acid absorption unit is used for absorbing hydrogen chloride gas in mixed gas containing hydrogen chloride and chlorine in the chlorination reaction tail gas to form hydrochloric acid, removing hydrochloric acid mist from the mixed gas, and conveying the mixed gas to the sodium hypochlorite unit; the hydrochloric acid dechlorination unit is used for receiving chlorine-containing hydrochloric acid discharged from the hydrochloric acid absorption unit and dechlorinating the chlorine-containin