Removal of Elemental Mercury by Coconut Pith Char Adsorbents. (2016)

• Record Type: Journal Article
• Authors: Johari, Khairiraihanna; Saman, Norasikin; Tien, Song Shiow; Chin, Cheu Siew; Kong, Helen; Mat, Hanapi
• Is Part Of: Procedia engineering. Volume 148(2016)
• Page Start: 1357
• Page End: 1362
• Publication Date: 2016
• Subjects: Coconut -- char -- mercury -- adsorption -- desorption -- adsorbent.; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2016.06.588
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: Coconut pith (CP), which is abundantly available and cheap, has the potential of being used as low-cost adsorbents for elemental mercury removal. In this study, the preparation of chars was carried out through the carbonization of CP at three different environment conditions: (a) open reactor under nitrogen flow; (b) closed reactor under nitrogen environment; and (c) closed reactor under ambient environment; at the temperature of 700 °C. The results show that the chemical, physical, morphological and spectral properties of the adsorbents greatly influenced by the environment of carbonization used. The highest Hg o adsorption capacity was observed for CCA700 (2395.98 μg/g), followed by CCN700 (2052.49 μg/g), and CFN700 (1416.92 μg/g). These results demonstrated that coconut pith derived chars could be potential as low-cost adsorbent alternatives for the removal of elemental mercury in gas streams.