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Production of MOF Adsorbent Spheres and Comparison of Their Performance with Zeolite 13X in a Moving-Bed TSA Process for Postcombustion CO2 Capture

Production of MOF Adsorbent Spheres and Comparison of Their Performance with Zeolite 13X in a Moving-Bed TSA Process for Postcombustion CO2 Capture

Category
Journal publication
Abstract
Well-shaped 300–700 μm spheres of aggregated metal–organic framework CPO-27-Ni crystallites have been produced using a spray-granulation method with cross-bonded alginate as the binder. The spheres are suitable for use in a moving-bed temperature-swing adsorption (MBTSA) process for postcombustion CO2 capture. The adsorption isotherm data of CO2, N2 ,and H2O have been measured in the temperature intervalof 30–120 °C, and adsorption kinetics have been estimated from breakthrough measurements. The adsorption data together with the physical characteristics of the spheres (pore-size distribution and porosity) have been used to simulate the performance of a MBTSA process utilizing the CPO-27-Ni/alginate spheres as adsorbent and compared to similar simulations using Zeolite 13X spheres. Simulations have been carried out in a natural gas-fired power plant (NGCC) context. The process simulations indicate that the net electric efficiency of the NGCC plant with a MBTSA process utilizing the CPO-27-Ni/alginate spheres is similar to that of a MBTSA process utilizing Zeolite 13X adsorbent, 56.1% and 55.9%, respectively, which are slightly higher than the net efficiency of the benchmark case NGCC with a MEA-based solvent process of 54.7%
Client
  • Norges forskningsråd / 267873
Language
English
Affiliation
  • Norwegian University of Science and Technology
  • SINTEF Industry / Process Technology
Year
2020
Published in
Industrial & Engineering Chemistry Research
ISSN
0888-5885
Volume
59
Issue
15
Page(s)
7198 - 7211