Device that contains high concentration CO2 natural gas or synthetic gas decarbonization

The utility model provides a device that contains high concentration CO2 natural gas or synthetic gas decarbonization, includes absorption tower, regenerator column, purified gas cooler, poor / rich amine liquid heat exchanger, rich amine liquid heater, carbon dioxide cooler, amine liquid cooler, amine liquid filter, absorption tower scavenging pump, charge pump, regenerator reflux pump, amine liquid booster pump, amine liquid circulating pump, purified gas vapour and liquid separator, reinforced jar, rich amine liquid flash tank, carbon dioxide knockout, solution buffer tank, liquid seal jar, governing valve. The utility model is suitable for a sour gas content is up to 35% (mole%'s) the peracid natural gas or synthetic gas decarbonization, purified gas han tanliang &lt, 2.5% (mole%). The directness takes half lean solution to absorb the CO2 in the desorption feed gas, compares in traditional deacidification device, gets the thermal while at the bottom of reducing traditional regenerator column, has reduced the refrigerant quantity of regeneration top of the tower carbon dioxide cooler to the device energy consumption has been reduced, the control of taking half lean solution to be favorable to the absorption tower temperature prevents temperature runaway in the absorption tower.