Title

Production And Characterization Of Lemna Minor Bio-Char And Its Catalytic Application For Biogas Reforming

Keywords

Bio-char; Biogas reforming; Catalyst; Lemna minor; Pyrolysis

Abstract

Pyrolysis of fast-growing aquatic biomass - Lemna minor (commonly known as duckweed) with the emphasis on production, characterization and catalytic application of bio-char is reported in this paper. The yield of bio-char was determined as a function of L. minor pyrolysis temperature and sweep gas flow rate. It was found that the pore development during L. minor pyrolysis was not significant and the changes in the reaction conditions (temperature and sweep gas flow rate) did not alter markedly the textural characteristics and BET surface area of the bio-char produced. Thermogravimetric/differential thermogravimetric (TG/DTG) analyses of L. minor and different bio-char samples in inert (helium) and oxidative (air) media showed substantial differences in their TG/DTG patterns. A comparison of scanning electron micrographs (SEM) of L. minor, bio-char and ash indicated that the basic structural features of L. minor remained intact and were not affected by thermolysis. The inorganic ash content of L. minor derived bio-char is significantly higher than that of typical terrestrial (plant) biomass. The energy dispersive spectroscopic (EDS) analysis of L. minor ash showed that it mostly consisted of silica, and small quantities of Na, K and Ca compounds. The treatment of bio-char with CO 2 at 800 °C increased its BET surface area. It was found that CO 2-treated bio-char exhibited appreciable initial catalytic activity in biogas reforming. © 2012 Elsevier Ltd.

Publication Date

7-1-2012

Publication Title

Biomass and Bioenergy

Volume

42

Number of Pages

123-131

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.biombioe.2012.03.003

Socpus ID

84861460363 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84861460363

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