Journal
CHEMICAL ENGINEERING JOURNAL
Volume 279, Issue -, Pages 327-334Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2015.05.035
Keywords
Adsorptive denitrogenation; Activated carbon; Supported cuprous ion; Facile reduction
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Funding
- Basic Science Research Program through the National Research Foundation of Korea (NRF) grant - Korea government (MSIP) [2013R1A2A2A01007176]
- National Research Foundation of Korea [2013R1A2A2A01007176] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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CuCl-loaded activated carbons (ACs) have been used for the first time to remove harmful nitrogen-containing compounds (NCCs) from model fossil fuels. The CuCl/ACs were obtained by reducing CuCl2/ACs with Na2SO3 under ambient conditions. A mixture of quinoline (QUI), indole (IND) and benzothiophene (BT) was used to investigate the adsorption behaviors. QUI and IND were used to represent basic and neutral NCCs, respectively. On the other hand, BT is a sulfur-containing compound (SCC) that was used to mimic commercial fuels and investigate the selectivity of adsorption for NCCs over SCCs. The adsorption capacities of CuCl/AC for QUI and IND increased by almost 100% from that of pristine AC, even though the surface area of the CuCl/AC was lower than that of the AC. On the contrary, the adsorbed amounts over CuCl2/AC (loaded without using Na2SO3) for QUI and IND were slightly lower than the adsorbed amounts over the virgin AC. The improved adsorptive performances of CuCl/AC for NCCs might be due to pi-complexation between Cu+ species and NCCs. (C) 2015 Elsevier B.V. All rights reserved.
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