Rice Husk Energy Content Enhancement by the Torrefaction Process: Characterization and Statistical Studies

Authors

  • Dejene Mandefro Process Engineering Division, School of Chemical and Bio Engineering, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia.
  • S. Anuradha Jabasingh Associate Professor, Process Engineering Division, School of Chemical and Bio Engineering, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia.

Keywords:

Torrefaction, Pyrolysis, Rice husk, Experimental design.

Abstract

Torrefaction  is the partial pyrolysis of biomass at atmospheric pressure, in an inert environment. The objective of this study is to torrefy the rice husk of Ethiopian origin in order to enhance its energy density. The optimum torrefaction temperature, holding time, and acid concentration were investigated in this study by the three-level-three-factor Box-Behnken Design (BBD) using the Design-Expert 7.0.0 software.

References

Berhanu M, Jabasingh SA & Kifile Z, Expanding sustenance in Ethiopia based on renewable energy resources - A comprehensive review, Renew Sust Ener Rev, 75(2017)1035-1045.

Tesfamichael B, Gessesse N & Jabasingh SA, Application of rice husk and maize straw biochar for carbon sequestration and nitrous oxide emission impedement, J Sci Ind Res,77 (2018)587-591.

Fissha A & Jabasingh SA, Production of bioethanol from barley spent grains (BSG) by two stage dilute acid hydrolysis, ScholReps, 3(2018) 78-86.

Jabasingh SA, Lalith D, Prabhu MA, Yimam A & Zewdu T, Catalytic conversion of sugarcane bagasse to cellulosic ethanol: TiO2 coupled nanocellulose as an effective hydrolysis enhancers, Carbo Polym, 136(2016) 700-709.

Mamo TZ, Dutta A & Jabasingh SA, Start-up of a pilot scale anaerobic reactor for the biogas production from the pineapple processing industries of Belgium, Renew Ener, 134(2019) 241-246.

Du SW, Chen WH & Lucas JA, Pretreatment of biomass by torrefaction and carbonization for coal blend used in pulverized coal injection, Bioresour Technol, 161 (2014) 333-339.

Pelaez-Samaniegoa MR, Yadamac, V, Garcia-Perez M, Lowell E & McDonald AG, Effect of temperature during wood torrefaction on the formation of lignin liquid intermediates, J Anal Appl Pyrolysis, 109 (2014) 222-233.

Bridgeman TG, Jones JM, Shield I & Williams PT, Torrefaction of reed canary grass, wheat straw and willow to enhance solid fuel qualities and combustion properties, Fuel, 87 (2008) 844-856.

Chen WH & Kuo PC, Torrefaction and co-torrefaction characterization of hemicellulose, cellulose and lignin as well as torrefaction of some basic constituents in biomass, Energy, 36 (2011) 803-811.

Nhuchhen DR & Afzal MT, HHV Predicting Correlations for Torrefied Biomass Using Proximate and Ultimate Analyses, Bioengineering, 4 (2017)1-15.

Chen WH, Lu K-M, Lee W-J & Lin T-C, Non-oxidative and oxidative torrefaction characterization and SEM observations of fibrous and ligneous biomass, Appl Energy, 114 (2014),104-113.

Arias B, Pevida C, Fermoso J, Plaza MG, Rubiera F, Pis, JJ, Influence of torrefaction on the grindability and reactivity of woody biomass, Fuel Process Technol, 89 (2008)169-175.

Harun NY & Afzal MT, Torrefaction of agriculture and forestry biomass using TGA-FTIR-MS. In: Dincer I., Midilli A., Kucuk H. (eds) Progress in Exergy, Energy, and the Environment, Springer International Publishing, Switzerland, (2014) 805-813.

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Published

2020-05-30

Issue

Vol. 7 No. 1 (2020)

Section

Articles

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