(59e) The EFFECT of Murphree Efficiency ON Absorption of CO2 and H2S IN Natural Gas Sweetening Process

Alkanolamine processes are used in the industry to remove acid gases, like CO2 , H2S and other sulphur components, from natural gas and industrial gas streams. In this process the acid components react with the basic alkanolamine solution via an exothermic, reversible reaction in a gas/liquid absorber. The use of amine solvents for gas sweetening has been investigated using process simulation programs called HYSYS and ASPEN. We use Electrolyte NRTL and Amine Package and Amines(experimental) equation of state. The effect of murphree efficiency on the rate of absorption were studied . HYSYS software can not estimate murphree efficiency correctly and it apply the same contributions so in all diagrams related to HYSYS software, all the figures depending on variant efficiencies match to each other and in all cases efficiency of condenser and reboiler processes equals one. By improvement in murphree efficiency, maximum temperature of absorber decrease and the location of reaction teransfer to the stages of bottomn absorber and the absorption of acid gases increase. In stripper when murphree efficiency increase, the maximum temperature increases too and therefore the repel of acid gases increase.