Introduction
The solubility of CO2 in aqueous solutions as an important issue in the field of chemical engineering and gas separation processes. Especially in oil and gas industries and carbon management, it has attracted a lot of attention. With increasing concerns about climate change and the need to reduce greenhouse gas emissions, improving CO2 adsorption technologies from industrial sources has become one of the basic necessities.
Piperazine and MDEA are known as solvents with high efficiency in CO2 adsorption. The integration of these solvents with ionic liquids can lead to a significant improvement in the solubility of CO2 as well as improving the performance of the adsorption process.
The aim of this research is to model and calculate the equilibrium solubility of CO2 in Piperazine solution, and MDEA in the presence of ionic liquids using MATLAB.
Description
In this research, the experimental investigation of the solubility of carbon dioxide gas in aqueous solutions of MEA and Piperazine. in the form of four-component systems with different percentages as new adsorbent solutions was investigated with an emphasis on measuring the adsorption capacity.
New Experimental Data for Equilibrium Solubility of CO2 in Aqueous Solutions of MDEA and Piperazine. It has been reported for a temperature range of 363-423 K and a pressure range of 26.3-204.3 kPa.
The measured data combined with the data collected from the literature are used to modify the Deshmukh-Mather model to predict the solubility of CO2 in MDEA + PZ solutions. In this model, a modified Debye-Huckel expression for electrolyte solutions is used to calculate the activity coefficients. More than 300 data points in a wide range of temperature, pressure and concentration are used to optimize the interaction parameters for the studied system. Genetic algorithm minimization technique is used for this optimization process. Gas phase fugacity coefficients are also included and calculated using Peng-Robinson equation of state.
In this project, the aim was to calculate the kinetic state of carbon dioxide adsorption in absorbent solution with the help of MATLAB software. Modeling and coding have been done based on some valid articles. This coding project has a total of 254 complete MATLAB coding lines. One of the articles on which the modeling was done:
Click on the link below to download the article.
Equilibrium solubility of carbon dioxide in N-methyldiethanolamine + piperazine aqueous solution: Experimental measurement and prediction
