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Issue
Korean Journal of Chemical Engineering,
Vol.37, No.6, 1029-1035, 2020
Effects of magnesium loading on ammonia capacity and thermal stability of activated carbons
Park JH, Rasheed HU, Cho KH, Yoon HC, Yi KB
Mg-loaded activated carbons were prepared by adding various amounts of Mg (1 to 20 wt%) via ultrasonic- assisted impregnation to investigate the effects on the adsorption and desorption characteristics of ammonia. Mgloaded activated carbons were characterized by TGA, BET, SEM, EDS mapping, and NH3-TPD analysis. Mg was homogeneously dispersed on the activated carbon and NH3-TPD analysis confirmed improved desorption and thermal stability for the 10 wt% Mg sample, named AC-Mg(10). AC-Mg(10) retained the highest desorption for five cycles and showed average desorption amount of 0.788mmol NH3/g. During the breakthrough analysis, the AC-Mg(10) showed an initial ammonia adsorption capacity of 0.81mmol NH3/g and average adsorption capacity of 0.69mmol NH3/g over 30 adsorption and desorption cycles.
Keywords: Activated Carbon; Magnesium; Ammonia; Adsorption; Breakthrough Test
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[Cited By]
  1. Cho GH, Park JH, Rasheed HU, Yoon HC, Yi KB, Clean Technology, 26(2), 137, 2020
  2. Lim JH, Song K, Park CS, Kim YH, Applied Chemistry for Engineering, 33(2), 202, 2022
  3. Park JH, Hong MW, Yoon HC, Yi KB, Korean Journal of Chemical Engineering, 39(10), 2775, 2022
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