Spherical microporous/mesoporous activated carbon from pulping black liquor

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Published
2011-04-11
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  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/jctb.2627
Publisher
Wiley

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<jats:title>Abstract</jats:title><jats:p><jats:bold>BACKGROUND:</jats:bold> A simple and effective method with environmental and economic benefits has been developed to produce spherical lignin and spheroidal microporous/mesoporous activated carbon from pulping black liquor.</jats:p><jats:p><jats:bold>RESULTS:</jats:bold> Spherical lignin with regular size of about 100 nm was obtained at 90 °C after 8 h treatment at pH 2. Pyrolysis of spherical lignin was impregnated with H<jats:sub>3</jats:sub>PO<jats:sub>4</jats:sub> producing spheroidal microporous/mesoporous activated carbon with high apparent Brunauer–Emmett–Teller (BET) surface area of 1972 m<jats:sup>2</jats:sup> g<jats:sup>−1</jats:sup> and high carbon content of 68.0 wt% at 700 °C with impregnation ratio of 1:7.</jats:p><jats:p><jats:bold>CONCLUSION:</jats:bold> The process was inexpensive, sustainable, environment‐friendly and suitable for large‐scale production. Copyright © 2011 Society of Chemical Industry</jats:p>

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