Torrefaction of waste biomass for application in energy production in South Africa

T. A. Mamvura, G. Pahla, E. Muzenda

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Power producing plants are major emitters of greenhouse gases that lead to global warming and climate changes. In the past two to three decades, attention has been drawn to organizations such as these reduce their dependence on coal reserves which are depleting and focus on producing clean energy i.e. for every ton of fuel produced, 100 kg or more should be made from clean energy. This has made torrefaction to gain interest as it improves energy content of biomass, a renewable and clean energy source, to levels equal to and sometimes above that of coal. The benefit of this is that, torrefied biomass could be co-fired with coal thereby reducing greenhouse gases and global warming. In this study, the effect of different parameters were investigated on two abundant sources of biomass in South Africa. There parameters were temperature, oxygen content, heating rate and residence time. It was observed that a temperature range between 275 and 300 °C under inert conditions with a heating rate of 10 °C/min and residence time between 20 and 40 min were required to achieve the best biomass with properties comparable to those of coal. This made it possible to co-fire the biomass with coal for energy production at different proportions.

Original languageEnglish
Pages (from-to)1-12
Number of pages12
JournalSouth African Journal of Chemical Engineering
Volume25
DOIs
Publication statusPublished - Jun 1 2018
Externally publishedYes

Fingerprint

energy production
Coal
coal
Biomass
Global warming
heat pump
Heating rate
energy
Greenhouse gases
global change
power plant
energy source
Climate change
Power plants
Fires
climate change
Oxygen
Temperature

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Education
  • Energy (miscellaneous)
  • Process Chemistry and Technology
  • Fluid Flow and Transfer Processes
  • Filtration and Separation

Cite this

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Torrefaction of waste biomass for application in energy production in South Africa. / Mamvura, T. A.; Pahla, G.; Muzenda, E.

In: South African Journal of Chemical Engineering, Vol. 25, 01.06.2018, p. 1-12.

Research output: Contribution to journalArticle

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