本实用新公开了一种等离子体活化二氧化碳制备二甲醚的装置。该装置主要由等离子体活化装置、直流高频高压发生器和二氧化碳加氢制二甲醚固定床反应器组成。等离子体活化装置为一耐压、密封装置,内衬石英管,以直流、高频介质阻挡放电为等离子体源,其高压电极为一针-板式电极。二氧化碳加氢制二甲醚为一带温度控制的固定床反应器。本实 The utility model discloses a device for preparing dimethyl ether through plasma activated carbon dioxide. The device is mainly composed of a plasma activation device, a DC high-frequency high-pressure generator and a dimethyl ether fixed-bed reactor for hydrogenation of carbon dioxide. The plasma activation device is a pressure-proof and sealing device lined with a quartz tube, which is a plasma source with a DC or high-frequency dielectric barrier discharge. The high-voltage electrode is a needle-plate electrode. Hydrogenation of carbon dioxide to dimethyl ether is a fixed-bed reactor with temperature control. The reality