Carbon dioxide capture liquefaction unit

Carbon dioxide capture liquefaction unit：

Our company is concerned about the carbon dioxide emissions from different industries（The exhaust gas of the CO2 recovery device adopts corresponding process combinations, which can recover and purify industrial CO2 waste gas with a carbon dioxide (CO2 recovery device) content of only 60% or more to the national industrial and food grade gas standards of carbon dioxide (CO2 recovery device). The recycling of refined carbon dioxide (CO2 recovery device) is not only used in industries such as welding, food, cigarettes, medical, and oil fields, but also more commonly used to convert and utilize carbon dioxide (CO2 recovery device) as a carbon resource, and its value is also considerable.

Concentrate CO₂

target, aim at, address, focus on, in response toCarbon dioxide capture liquefaction unitLow exhaust pressure, suitable for low-pressure concentration CO2 The process generally adoptsMEAThe law, Concentrate CO2 The separation effect is better, and CO2 The yield and purity are both relatively ideal. Therefore, taking into account various factors, This plan is recommended to adopt MEAWet process concentration CO2 Process recovery of exhaust gas CO2.

compress

Comprehensive considerationCarbon dioxide capture liquefaction unitfeed gas CO2 Concentration and impurity dissolution situation, this device adopts 3.0MPaGLiquefaction pressure.

Fine desulfurization

Carbon dioxide capture liquefaction unitTwo desulfurization tanks are planned to be used, which can be connected in parallel or series, to meet the high desulfurization accuracy and equipment requirementsSimple, requires minimal investment, and can also adapt to large fluctuations in intake flow

Dehydration and drying

Carbon dioxide capture liquefaction unitThe desulfurized gas also contains trace amounts of hydrocarbons, water and other impurities. The non condensable gas in it（COTheO2TheN2 Etc.)In the subsequent concentration tower, it can be removed to meet the requirements; Water and boiling point higher than CO2 The components of the collectionThe basic principle of using temperature and pressure swing adsorption technology for removal is to utilize the adsorption capacity of the adsorbent for impurity components to vary with pressureThere are significant differences in the characteristics of force and temperature. Under the conditions of adsorbent selection, impurities can be adsorbed at high pressure and room temperature, and desorbed at low pressure and high temperature to achieve gas purification. The adsorption purification process consists of three purifiers, One purifier is in adsorption state, one purifier is in heating state, and one purifier is in cold blowing state

liquefaction

Carbon dioxide capture liquefaction unit CO2 The liquefier uses ammonia as the refrigerant. In the liquefier, liquid ammonia evaporates into gaseous ammonia at low pressure, for CO2 Liquefaction provides cooling capacity; Gas ammonia is returned to the refrigeration system for recycling.

purify

After liquefaction, the material enters the purification tower and obtains high purity in the tower kettlePure liquid CO2 Product ProcessDirectly output to liquid after coolingCO2 Storage tank; From the top of the purification towerThe non condensable gas produced is recovered by a heat exchanger and used as regeneration gas for the dehydration and drying process. The small amount of exhaust gas discharged is vented on site or enters the pipeline network.

liquid CO2 device

The purification tower kettle uses high-temperature gas from the compressor outlet as the heat source, without the need for external heat supply; The cooling capacity of the tower top condenser comes from the cooling capacity generated by the depressurization flash evaporation of the tower top gas, and no external cooling capacity is required.