Modeling of CO2 Absorption with K2CO3 Diethanolamine-Piperazine Compound Using Packed Column Method

Abstract

In recent years, interest in the development of carbon dioxide (CO₂) removal technology has increased due to the impact on global warming and climate change, which is mainly due to the large amount of CO₂ emissions generated from various natural activities and human activities that are leached directly into the atmosphere. Common methods often used in the chemical industry to separate CO₂ gas from process gases include absorption using chemical solvents by using a pakced column method. This study aims to obtain data on CO₂ loading and CO₂ removal in K₂CO₃-H₂O solution with DEA-PZ promotor, and to determine the effect of concentration and temperature variables on CO₂ loading and CO₂ removal using modelling. This research was conducted with a variable temperature of 40°C-60°C, a concentration of 30% K₂CO₃, 1-3% DEA and 0.75% PZ using a packed column in atmospheric pressure. The results of the data validation obtained have an average % error of 7-12% based on previous research. The parameters obtained are the optimal temperature at 55^oC and CO₂ loading and CO₂ removal increases along with the increase in the concentration of DEA-PZ promoter The effect of the PZ promoter as an additional solution has an important role in increasing the effectiveness of absorption.