Production, characterization and application of activated carbon from brewer's spent grain lignin

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Solange I. Mussatto (Author) Other; Marcela Fernandes (Author) Other; George J. M. Rocha (Author) Other; José J. M. Órfão (Author) FEUP; José A. Teixeira (Author) Other; Inês C. Roberto (Author) Other

Journal

Title: Bioresource Technology

Vol. 101

Pages: 2450-2457

ISSN: 0960-8524

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 62 Citations

ISI Web of Science

Scopus - 31 Citations

COMPENDEX

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

Other information

Authenticus ID: P-003-7NS

DOI: 10.1016/j.biortech.2009.11.025

Abstract (EN): Different types of activated carbon were prepared by chemical activation of brewer's spent grain (BSG) lignin using H(3)PO(4) at various acid/lignin ratios (1, 2, or 3 g/g) and carbonization temperatures (300, 450, or 600 degrees C), according to a 2(2) full-factorial design. The resulting materials were characterized with regard to their surface area, pore volume, and pore size distribution, and used for detoxification of BSG hemicellulosic hydrolysate (a mixture of sugars, phenolic compounds, metallic ions, among other compounds). BSG carbons presented BET surface areas between 33 and 692 m(2)/g, and micro- and mesopores with volumes between 0.058 and 0.453 cm(3)/g. The carbons showed high capacity for adsorption of metallic ions, mainly nickel, iron, chromium, and silicon. The concentration of phenolic compounds and color were also reduced by these sorbents. These results suggest that activated carbons with characteristics similar to those commercially found and high adsorption capacity can be produced from BSG lignin.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8