Modification of K2CO3/Al2O3 solid sorbent with MEA and MDEA solutions for CO2 capture application

Name: P. Nokpho

Organization : Chulalongkorn University. Faculty of Science

Email : pacharapol.nok@gmail.com

Name: T. Sema

Organization : Chulalongkorn University. Environmental Research Institute

Name: R. Piemjaiswang

Organization : Chulalongkorn University. Faculty of Science

Name: P. Piumsomboon

Organization : Chulalongkorn University. Faculty of Science

Name: B. Chalermsinsuwan

Organization : Chulalongkorn University. Faculty of Science

Email : benjapon.c@chula.ac.th

keyword: Solid Sorbent

LCSH: Amines

LCSH: Carbon dioxide mitigation

LCSH: Fluidized-bed furnaces

Abstract: In this study, the modification of the adsorption preparation method aims to increase the carbon dioxide (CO2) capture capacity in the fluidized bed system. The improvement of the adsorption preparation method is investigated by adding two different amine solutions to the adsorbent in the preparation process. This is because the amine solutions are assumed to have an effect on the surface area of the adsorbent and to attach on the adsorbent surface. The effects of two types of amine solutions, which are ethanolamine (MEA) and methyl diethanolamine (MDEA) with the concentrations of 15 and 35 percent by weight, are explored. The drying temperature in the preparation process of 105 and 145oC and the stirring duration of 24 and 5 h are also investigated. The CO2 capture process is tested in the fluidized bed system under the following conditions: column temperature and steam temperature at 60 and 100oC, respectively. According to the results, the modified adsorbents using amine solution were more effective than the conventional adsorbents. The modified adsorbent with the highest CO2 capture capacity was prepared by MDEA with the concentration of 35 percent by weight, drying temperature of 145oC and stirring time of 24 h, which had the CO2 capture capacity of 76.45 mg of CO2/adsorbent. In addition, the process feasibility of modification preparation method was compared

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2022

Modified: 2022-12-14

Issued: 2022-12-14

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BibliograpyCitation : In Naresuan University. The 31st Thai Institute of Chemical Engineering and Applied Chemistry Conference (TiCHE 2022) (pp.471-479). Phitsanulok : Naresuan University

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