Carbon dioxide treatment method and system

• Main Authors: GAO TENGFEI, CUI QINGRU, ZHAO RUI, CHEN ZHEN, LI SI, XU DONG, GONG HAITING, YU XUEHAI, WANG ZHEN, REN BIN, JI WEI
• Format: Patent
• Language: Chinese; English
• Published: 13.06.2023
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; APPARATUS THEREFOR; CHEMISTRY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; METALLURGY; ORGANIC CHEMISTRY

The invention relates to the technical field of coal chemical industry, in particular to a coal chemical industry carbon dioxide treatment method and system. The method comprises the following steps: mixing carbon dioxide with an electro-catalysis electrolyte to obtain a carbon dioxide-containing electro-catalysis electrolyte, and then carrying out an electro-catalysis reaction on the carbon dioxide-containing electro-catalysis electrolyte, carrying out gas-liquid separation on the obtained cathode product, and then separating carbon dioxide in a gas phase part obtained by separation from the synthesis gas; and carrying out a synthesis reaction on the separated synthesis gas. According to the method and system, on-site conversion of the coal chemical industry carbon dioxide waste gas can be achieved, the emission amount of carbon dioxide is reduced, and meanwhile the effect of saving energy is achieved. 本发明涉及煤化工技术领域，具体涉及一种煤化工二氧化碳处理方法及其系统。该方法包括以下步骤：将二氧化碳与电催化电解液混合，得到含二氧化碳电催化电解液，然后对所述含二氧化碳电催化电解液进行电催化反应；将得到的阴极产物进