Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Evaluation of the Pyrolysis and Gasification Kinetics of Tropical Wood Biomass
University of Borås, School of Engineering.
University of Borås, School of Engineering.
2014 (English)In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 9, no 2, 2179-2190 p.Article in journal (Refereed) Published
Sustainable development
The content falls within the scope of Sustainable Development
Abstract [en]

Two tropical biomass species, teak (Tectona grandis) and obobo (Guarea thompsonii), were obtained in the form of sawmill waste from Nigeria and evaluated to determine their potential for gasification. Pyrolysis and gasification kinetics of the samples were investigated using a thermogravimetric analyser (TGA) at temperatures of 900 oC and 1,000 oC. Four iso-conversional methods, one peak temperature method, and two model-fitting methods were employed to determine the kinetic parameters, i.e. the apparent activation energy Ea, and pre-exponential factor A. Values of the gasification kinetic rate constant K were determined using two gas-solid reaction models: the volumetric reaction model (VRM) and the shrinking core model (SCM). The values obtained for all three kinetic parameters showed good agreement with values derived for samples of non-tropical wood.

Place, publisher, year, edition, pages
North Carolina State University , 2014. Vol. 9, no 2, 2179-2190 p.
Keyword [en]
Pyrolysis, Pyrolysis, Kinetic parameters, Tropical biomass
National Category
Energy Engineering
Research subject
Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-1865ISI: 000336960700028Local ID: 2320/13742OAI: oai:DiVA.org:hb-1865DiVA: diva2:869943
Available from: 2015-11-13 Created: 2015-11-13 Last updated: 2017-12-01
In thesis
1. Investigating the Reaction Kinetics of Tropical Wood Biomass: A Prospect for Energy Recovery
Open this publication in new window or tab >>Investigating the Reaction Kinetics of Tropical Wood Biomass: A Prospect for Energy Recovery
2016 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The utilization of wood biomass for energy recovery purposes is a phenomenon that is increasingly attracting attentions from researchers, companies and countries all over the world. The effect of climate change as largely represented by global warming leading to glacier ice melting and an unprecedented rise in sea level is a worrisome development. One of the causal agents of this scenario is the increase in world’s greenhouse gas emission. A sure method of approach to ending the problem is to drastically reduce the emission level to the barest minimum, or to zero level if possible. Wood biomass conversion via thermal treatment is an activity capable of reducing the emission possibility as the CO2 released during the conversion is effectively taken care of. Another benefit derivable from the conversion is taking care of what otherwise would have been termed a waste and treated as such. The envisaged use of wood resource to solve the lingering power problem in Nigeria is an effort in the right direction.

The thesis highlights the conversion processes, as well as the reaction kinetics involved. Reaction parameters such as temperature, heating rate, partial pressure, and flow rate were investigated for the purpose of identifying their effect on the conversion processes. The typical kinetic parameters obtained during the conversion processes would be of high importance in the design and configuration of reactors meant for the optimum conversion of wood waste biomass as a valuable resource. With the non-tropical wood biomass already deployed for energy conversion in the developed countries, the similarity in the trend as regards conversion reactions (char formation and

conversions, kinetic parameters) compared to the tropical counterpart is a welcome development. This suggests the candidacy of non-tropical wood biomass for energy recovery purposes as a viable one.

Place, publisher, year, edition, pages
Borås: Högskolan i Borås, 2016. 70 p.
Series
Skrifter från Högskolan i Borås, ISSN 0280-381X ; 77
Keyword
Wood, Pyrolysis, gasification, char, kinetic parameters, SEM-EDX, AAEM
National Category
Engineering and Technology
Research subject
Resource Recovery
Identifiers
urn:nbn:se:hb:diva-9334 (URN)978-91-88269-10-2 (ISBN)978-91-88269-11-9 (ISBN)
Public defence
2016-04-29, in room E310,, University of Borås, Allegatan 1, Borås, Sweden, Borås, 10:00 (English)
Available from: 2016-04-07 Created: 2016-03-08 Last updated: 2016-04-07Bibliographically approved

Open Access in DiVA

fulltext(725 kB)66 downloads
File information
File name FULLTEXT01.pdfFile size 725 kBChecksum SHA-512
0062429cb366594100e3027c6db1d9599c768c4f0c6eb3b2fafb56a4367ebb70c7549ce052bd637e7b11db5f41c7eeb90de192b685693681806a5108969ea124
Type fulltextMimetype application/pdf

Other links

http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_2_2179_Oluoti_Pyrolysis_Gasification

Search in DiVA

By author/editor
Oluoti, KehindeRichards, Tobias
By organisation
School of Engineering
In the same journal
Bioresource Technology
Energy Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 66 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 677 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf