Characterization of solid and liquid products from bamboo torrefaction

Wei-Hsin Chen, Shih-Hsien Liu, Tarng-Tzuen Juang, Chi-Ming Tsai and Yi-Qing Zhuang

Applied Energy, 2015, vol. 160, issue C, 829-835

Abstract: Solid and liquid products from bamboo (Bambusa sinospinosa) torrefaction were analyzed in the present study. Three different torrefaction temperatures of 250, 300, and 350°C and three torrefaction durations of 30, 60, and 90min are taken into consideration. The properties of both solid and liquid products are sensitive to the torrefaction temperature, whereas the influence of duration is relatively slight. Among the torrefaction temperatures of 250, 300, and 350°C, 300°C is recommended for upgrading bamboo in that it gives a more appropriate operation to enhance the higher heating value of the biomass while the solid yield is not too low. In the liquid products or condensable liquids, acids, alcohols, ketones, phenols, aldehydes, esters, etc. are detected. The contents of acids and alcohols in the liquids are richer, and acid formation is especially significant at the torrefaction temperature of 250°C. The pH value of the condensable liquid is in the range of 2.27 and 2.60 which is close to that of bio-oil. The water content in the liquid product is around 50% and an increase in torrefaction temperature lowers the content. After undergoing dewatering, the calorific value of the liquid product is enlarged in a significant way. The results show that dewatering is an important process to upgrade the liquid product as a fuel.

Keywords: Torrefaction; Biomass and bamboo; Water and dewatering; Viscosity; pH; Energy yield (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (18)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0306261915003062
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:160:y:2015:i:c:p:829-835

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.2015.03.022

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 ().