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首页> 外文期刊>Environmental engineering and management journal >INFLUENCE OF DESULPHURIZATION IN THE CARBON DIOXIDE ABSORPTION PROCESS USING MONOETHANOLAMINE
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INFLUENCE OF DESULPHURIZATION IN THE CARBON DIOXIDE ABSORPTION PROCESS USING MONOETHANOLAMINE

机译：单乙醇胺脱硫在二氧化碳吸收过程中的影响

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摘要

The aim of this paper is to determine the influence of desulphurization on process efficiency and monoethanolamine (MEA) absorption capacity. The experiment was conducted on a circulating fluidized bed combustion (CFBC) which uses indigenous coal from Jiu Valley. We determined the absorption capacity of MEA considering three values of concentrations in the solution: 20%, 30% and 40%. It was noticed that the higher the concentration of MEA is in the solution, the greater is the influence in the efficiency of the desulphurization process on the absorption capacity of MEA. Therefore, the increase in the efficiency of the desulphurization process from 68 to 98% leads to the increase of the amount of CO_2 rich loading solvent by 0.172 g CO_2/gMEA for a concentration of 20% and by 0.25g CO_2/gMEA for a concentration of 40%. Considering an optimal desulphurization (1 % NaOH), the efficiency of the CO_2 capture process was of 85% irrespective of the MEA concentration in the solvent. However, the minimum energy consumption is obtained for the optimal concentration of 40% (3 GJ / tonne of CO_2).
机译：本文的目的是确定脱硫对工艺效率和单乙醇胺（MEA）吸收能力的影响。该实验在循环流化床燃烧（CFBC）上进行，使用来自九谷的土着煤。我们确定了MEA的吸收能力，考虑到溶液中的三个浓度值：20％，30％和40％。注意到，MEA浓度在溶液中越高，脱硫过程效率越大，对MEA的吸收能力的影响越大。因此，脱硫过程的效率的增加从68〜98％导致浓度为0.172g CO_2 / gmea的CO_2富含负载量的量增加20％和0.25g CO_2 / GMEA的浓度40％。考虑到最佳脱硫（1％NaOH），CO_2捕获过程的效率为85％，而溶剂中的MEA浓度无关。然而，获得最低能量消耗的最佳浓度为40％（3GJ /吨CO_2）。

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