Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 74, Issue -, Pages 199-207Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2019.03.004
Keywords
Activated carbon; Metal; Ammonia; Adsorption; Desorption; Breakthrough test
Funding
- Research and Development Program of the Korea Institute of Energy Research (KIER) [B9-2443]
- Chungnam National University
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Metal loaded activated carbons (AC) were synthesized for an application in NH3 enrichment through repeated adsorption and desorption. The metal loaded activated carbons possesses higher NH3 adsorption capacity than the raw AC at room temperature. Mg loaded AC (AC-Mg) showed about 10 times (6.34 mg NH3/g) higher adsorption capacity than raw AC and its adsorption capacity was maintained even in repeated breakthrough tests. Metal loading on activated carbon increased the concentration of surface oxygen, which provides relatively weak adsorption sites for NH3 so that the adsorbed NH3 can be released relatively easier compared to the case of raw AC. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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