Superactivated carbons by CO2 activation of loquat stones

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Title: Superactivated carbons by CO2 activation of loquat stones
Authors: Plaza Recobert, Minerva | Trautwein, Guido | Pérez-Cadenas, María | Alcañiz-Monge, Juan
Research Group/s: Materiales Carbonosos y Medio Ambiente
Center, Department or Service: Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Superactivated carbon | Carbon dioxide activation | Microporosity | Chemically and diffusion controlled gasification
Knowledge Area: Química Inorgánica
Issue Date: May-2017
Publisher: Elsevier
Citation: Fuel Processing Technology. 2017, 159: 345-352. doi:10.1016/j.fuproc.2017.02.006
Abstract: This work presents CO2 activation approach towards controlled preparation of superactivated carbons (SAC) from a new lignocellulosic residue: loquat stones. This study demonstrates the potential use of loquat stones as a precursor in the preparation of SAC, reaching maximum BET surface area 3500 m2/g and total micropore volume 1.84 cm3/g. Studies on CO2 activation at different temperatures reveal two interesting results: 1) Loquat stones can be activated at high temperatures, up to 1100 °C, achieving similar volumes of porosity with short maintenance times (30 min). 2) The greater facility for eliminating mineral matter content of the loquat stones, as well as the scarce presence of K in its composition. The high volumes both of total and narrow microporosity that are obtained in the activation of carbonized loquat stones can be explained both by the traces of mineral matter that they contain and the carbonaceous microstructure of its carbonized state.
Sponsor: The authors would like to thank the Ministerio de Economia y Competitividad, project CTQ2015-64801-R (MINECO/FEDER), and Generalitat Valenciana and FEDER (Grant No. PROMETEO2/2014/010), for financial support.
ISSN: 0378-3820 (Print) | 1873-7188 (Online)
DOI: 10.1016/j.fuproc.2017.02.006
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2017 Elsevier B.V.
Peer Review: si
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Appears in Collections:INV - MCMA - Artículos de Revistas

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