Enhancing CO<sub>2</sub> desorption efficiency with Non-Aqueous Catalyst-Enhanced Tri-Blend amines

YÜKSEL ORHAN Ö., Hugul A., ULUS F. N., YAVUZ ERSAN H.

FUEL, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.fuel.2024.132458
  • Dergi Adı: FUEL
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Biotechnology Research Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Pollution Abstracts, Civil Engineering Abstracts
  • Hacettepe Üniversitesi Adresli: Evet

Özet

The substantial energy demand of CO2-loaded solvent regeneration constitutes a significant economic challenge for the industrial applications of CO2 capture and utilization technologies. The nano-catalysts have the capability to improve CO2 desorption while reducing the energy demands for solvent regeneration. This study focuses on examining the absorption-desorption performance of non-aqueous tri-blend amines (monoethanolamine (MEA), methyl diethanol amine (MDEA), and piperazine (PZ)) utilizing different amounts of catalysts including HZSM-5, H-ferrierite (FER), and H-mordenite (MOR), gamma-aluminium-oxide (Al2O3), titanium-oxide (TiO2), magnesium oxide (MgO), indium-oxide (In2O3). The incorporation of solid catalysts leads to a substantial enhancement in the desorption performance of tri-blend amines and reduced energy consumption in comparison to blank tests. Higher desorption efficiency occurred with the presence of lower catalyst amounts. The sequence of CO2 desorption heat duty performance reduction with 0.125 g catalyst, was as follows: MgO (70.9 %) > In2O3 (80.2 %) > HZSM-5 (84.1 %) > Al2O3 (84.2 %) > FER (87.1 %) > MOR (88.4 %) > TiO2 (89.7 %), relative to blank test (100 %). HZSM-5 exhibited the highest desorption factor as 4.25*10(-7) mol(3)/kJmin while increasing the desorption rate to 2.37*10(-3) mol/min. This study provides the desorption performance of non-aqueous amine blends with energy-efficient catalysts, highlighting their potential as promising materials for carbon capture and storage applications with improved energy efficiency.