Investigation of the intrinsic CO2 gasification kinetics of biomass char at medium to high temperatures

Leteng Lin and Michael Strand

Applied Energy, 2013, vol. 109, issue C, 220-228

Abstract: In total eight char samples from pelletized wood, miscanthus, and straw were prepared under various pyrolysis conditions. The CO2 gasification kinetics for each sample was established in the temperature range from 800°C to 1300°C by the combination of thermogravimetric analysis (TGA) and a novel aerosol-based method. The aerosol-based method was used for the high temperature range between 1100°C and 1300°C, by gasifying suspended char particles (0.5–10μm) in an oxidizing carrier gas. A tapered element oscillating microbalance (TEOM) was used to measure the change of mass concentrations of particles in the carrier gas, before and after gasification. The results showed that the aerosol-based method could be used to investigate the intrinsic gasification kinetics of biomass char, at least up to 1300°C. All char samples showed similar reactivity in the low temperature range. However, above 1000°C there were significant differences in reactivity, and at 1300°C the conversion of the wood was in the order of 10 times faster than that of straw. The general char reactivity order in this study was wood>miscanthus>straw.

Keywords: Biomass; Char; Gasification kinetics; Aerosol; TEOM (search for similar items in EconPapers)
Date: 2013
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (20)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0306261913003218
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:109:y:2013:i:c:p:220-228

Ordering information: This journal article can be ordered from
http://www.elsevier.com/wps/find/journaldescription.cws_home/405891/bibliographic
http://www.elsevier. ... 405891/bibliographic

DOI: 10.1016/j.apenergy.2013.04.027

Access Statistics for this article

Applied Energy is currently edited by J. Yan

More articles in Applied Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().