Description
Removing acidic agents such as CO2 in a mixture of gases, especially in natural gas. is very important due to corrosion or freezing in the transmission network or process equipment. Liquid phase adsorption is the most common commercial method of gas sweetening in refineries and gas sweetening processes, especially for the adsorption of carbon dioxide gas. It brings the lowest operational and process costs. Adsorption processes in liquid are divided into physical and chemical categories.
In the physical adsorption method, the impurities of the gas stream are dissolved in the liquid phase through the creation of intermolecular forces. But in the process of chemical adsorption in the liquid phase, alkanolamine solutions are generally used as adsorbents. These materials have been used in the gas sweetening industry due to their cheapness and absorption reaction properties. Amine solutions used in the industry as absorbents are mono 4 and 3, methyl diethyl amine, triethyl amine, diethyl amine and ethyl amine.
Nowadays, due to the increasing use of fossil fuels as well as various processes in the oil, gas and petrochemical industries, the emission of carbon dioxide gas has become one of the environmental problems. Considering the importance of the subject, in this project, the carbon dioxide adsorption process has been simulated with the help of Comsol software.
The adsorption process at different times inside the adsorption tower is shown dynamically in the video below. Click to download.
Concentration Movie