System for preparing sodium formate through co-production of formic acid tail gas

• Main Authors: WANG CUNSHEN, WANG DEMIN, YANG FALEI, XU YOUHUI, ZHAO MING
• Format: Patent
• Language: Chinese; English
• Published: 22.09.2023
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

The utility model relates to the technical field of formic acid tail gas treatment, in particular to a system for preparing sodium formate by co-production of formic acid tail gas, which comprises a formic acid carbonyl reactor, washing and purifying equipment, a gas-liquid mixer, a preheater, a synthesis reactor and a separation tank which are sequentially communicated through pipelines. According to the system, formic acid tail gas is pressurized and then sent to a synthetic reaction system to participate in preparation of sodium formate, so that the problem of CO tail gas pollution in formic acid production is solved, and the production consumption of sodium formate is reduced. 本实用新型涉及甲酸尾气处理的技术领域，具体是一种甲酸尾气联产制备甲酸钠的系统，包括通过管路依次连通的甲酸羰基反应器、洗涤净化设备、气液混合器、预热器、合成反应器和分离罐。该系统将甲酸尾气提压后送到合成反应系统参与制备甲酸钠，既解决了甲酸生产的CO尾气污染问题，又降低了甲酸钠的生产消耗。