Study On Decarbonization By Amine Process Simulation And Device Running

It's well known that greenhouse effect is the great environment problem that mankind confronts. The emission of greenhouse gases induces greenhouse effect among which CO₂ is typical.The amount of CO₂ emission from fossil fuels accounts for 80 percent of all the emission caused by human activity,and the a mount of CO₂ from power plants is 30 percent.However,CO₂ is a kind of potential resource.So the removal of CO₂ from flue gas of power plants is has been extensively studied in recent yearsChemical absorption,adsorption,cryogenic distillation,membrane,membrane-based are the main technologies to separation CO₂ from flue gas.According to the feature of flue gas, chemical absorption is a worthwhile alternative especially for power plant flue gases.Among the methods of which,the amine absorption has good qualities of faster absorption rate,higher efficiency and so on,so it has been studied and made a rapid progress in these years.Chemical absorption was chosen in the paper.The absorbent is activated monoethanolamine(MEA).ASPEN PLUS is widely used all over the world now,because it is versatile and powerful. Depending on exact models and scientific calculation methods,ASPEN PLUS can simulate the process flow sheet strictly.The method of MEA for recovering CO₂ from flue gas was an effective gas refining technique.According to the physical properties of itself,the proper thermodynamic property calculation method is chosen to the system simulation and calculation on the steady state process simulation software ASPEN PLUS.It's found that the results of simulation are in good agreements with the design values.So the thermodynamic property calculation method is suitable for the system.According to the full,model of the whole process obtained through simulation,this paper analyzed sensitivities under the different operation conditions,and proposed optimal operating parameters.The simulation of MEA for recovering CO₂ is successful,and there is only a little deviation between simulation and the real process.It proves that ASPEN PLUS is an excellent process flow sheet simulation program. According to The simulation of results,The packed tower is designed in the packed tower, The experimental equipment was setted up by using high efficient packing and reasonable structure of packed tower and so on.The MEA for recovering CO₂ of flue gas by chemical absorption in packed tower system were studied.According to the experiment results above, The best condition which can be helpful to application was got.The paper analysed the influencing factors of the absorption and regeneration efficiency,which may serve study as groundwork.