A Predictive Model for Aqueous Potassium Carbonate/Piperazine/Ethanolamine for Carbon Dioxide Removal from Flue Gas

Carbon dioxide (carbonic acid artillery) emissions from coal?fired power plants appease to sacrifice to the steady rise in atmospheric minginesss in greenhouse gases which be known to contribute to global warming. all over the departed 40 years, observations at the Mauna Loa Observatory in hello put up shown an increase in carbon dioxide concentration levels by 18.8% [Keeling et al. (1995)]. As a result, CO2 charm technologies expand to become one and only(a) of the most important industrial and academician research areas. CO2 removal by reactive engrossment/stripping employ aqueous monoethanolaminoalkane (MEA) and other blended aminoalkane issues has been established as a mature CO2 capture technology. Figure 1 shows a typical counter? on-going absorber/stripper. Flue gas entering the absorber is counter?currently contacted with an aqueous aminoalkane solvent. CO2 is absorbed into the aqueous amine solvent through a reversible chemical reaction to embodiment a wealthy or loaded solvent (with evaluate to CO2). Alkanolamine/CO2 reactions are known to occur within the liquidity boundary layer. to a lower place some conditions, the reactions are nearly instantaneous as the concentration of the amine becomes scummy at the gas?liquid interface.

To correctly look for these rates, we go out need an accurate counterbalance model to report poster for the complexities of the mass transfer with fast chemical reaction as well as the speciation of the amines in the etymon. The rich amine resolve is then sent through a counter?current heat exchanger, where the solution is pre?heated by the slight amine solution before enterin g the stripper. In the stripper, heat is p! rovided in the reboiler in the form of steam to reverse the chemical equilibrium between the amine and CO2. The liberated CO2 and water drying up then leaves the stripper for downstream processing and storage. The optimal amine solvent would depend on the residual CO2 judicial admission and the stripping energy costs associated with the heat of CO2 absorption. The hot, hightail it amine solution is then sent...If you want to get a full essay, order it on our website: OrderEssay.net

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