Products evaluation from pyrolysis process of acacia wood in Vietnam
Abstract
Being a developing country, Vietnam has very good biomass energy potential which can be used as a substitute for fossil fuels. The present research aimed measuring yield and compositions of the products of acacia wood pyrolysis process in a packed bed reactor. The maximal liquid yield has been obtained at 450oC (49.95 wt%). Temperature has great influence on product distribution by increasing gas yield and decreasing bio-oil and char yields. The gas fraction is mainly composed of carbon dioxide and monoxide, so its heating value is rather low, but it can be burnt to supply energy to the process. CO, CO2 concentration in the gas decreases with temperature. The 17 compounds in the liquid product from acacia wood pyrolysis process were determined and they included functional groups of alcohol, organic acid, aldehyde, furan, aromatic hydrocarbon and phenol. It was observed pyrolysis process generate liquid product contained different compounds due to acacia wood compound complexed. Char is solid product of pyrolysis process that has structure multi-ring aromatic hydrocarbons and appeared -CH3 and -CH2- groups link with aromatic ring. Char has ability adsorption water so much due to porous structure. The porous structure was obtained due to thermal breaking of structure in pyrolysis process.
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References
A. R. Griffin, E. S. N. C. E. Harwood, and L. S. See, Sustaining the future of Acacia plantation forestry– a synopsis, South. For., 77(1) 2015, v–viii.
C. Zhou and J. Beltramini, Chemoselective Catalytic Conversion of Glycerol as a Biorenewable Source, Chemical Society Reviews, 37 (3) (2008) 527–549.
S. Baumlin et al., Production of hydrogen by lignins fast pyrolysis, International Journal of Hydrogen Energy, 31(15) (2006) 2179–2192.
E. Natarajan and E. Ganapathy Sundaram, Pyrolysis of rice husk in a fixed bed reactor, World Acad. Sci. Eng. Technol., 56(8) (2009) 504–508.
S. Şensöz and D. Angin, Pyrolysis of safflower (Charthamus tinctorius L.) seed press cake: Part 1. The effects of pyrolysis parameters on the product yields, Bioresour. Technol., 99(13) (2008) 5492–549.
O. Onay and O. M. Koçkar, Fixed-bed pyrolysis of rapeseed (Brassica napus L.), Biomass and Bioenergy, 26 (2004) 289–299.
A. E. Pütün, E. Apaydin, and E. Pütün, “Bio-oil production from pyrolysis and steam pyrolysis of soybean-cake: Product yields and composition, Energy, 27(7) (2002) 703–713.
A. . Bridgwater, D. Meier, and D. Radlein, An overview of fast pyrolysis of biomass, Org. Geochem., 30 (1999) 1479–1493.
M. Amutio, G. Lopez, M. Artetxe, G. Elordi, M. Olazar, and J. Bilbao, “Influence of temperature on biomass pyrolysis in a conical spouted bed reactor, Resour. Conserv. Recycl., 59 (2012) 23–31.
H. Yang, R. Yan, H. Chen, D. H. Lee, and C. Zheng, Characteristics of hemicellulose, cellulose and lignin pyrolysis, Fuel, 86(12–13) (2007) 1781–1788.
M. Stenseng, A. Jensen, and K. Dam-johansen, Investigation of biomass pyrolysis by thermogravimetric analysis and differential scanning calorimetry, J. Anal. Appl. Pyrolysis, 58–59 (2001) 765–780.
C. Quan, N. Gao, and Q. Song, Pyrolysis of biomass components in a TGA and a fixed-bed reactor: Thermochemical behaviors, kinetics, and product characterization, J. Anal. Appl. Pyrolysis, 121 (2016) 84–92.
C. Yin, Z. Luo, M. Ni, and K. Cen, Predicting coal ash fusion temperature with a back- propagation neural network model, Fuel, vol. 77(15) (1998) 1777–1782.
H. B. Mayes, M. W. Nolte, G. T. Beckham, B. H. Shanks, and L. J. Broadbelt, The alpha-bet(a) of glucose pyrolysis: Computational and experimental investigations of 5-hydroxymethylfurfural and levoglucosan formation reveal implications for cellulose pyrolysis, ACS Sustain. Chem. Eng., 2(6) (2014) 1461–1473.
M. H. Wang, M. L. Huang, and K. J. Liou, Application of extension theory with chaotic signal synchronization on detecting islanding effect of photovoltaic power system, Int. J. Photoenergy, (2015).
M. P. Pandey and C. S. Kim, Lignin Depolymerization and Conversion: A Review of Thermochemical Methods, Chem. Eng. Technol., 34(1) (2011) 29–41.
C. Quan, N. Gao, and Q. Song, Pyrolysis of biomass components in a TGA and a fixed-bed reactor: Thermochemical behaviors, kinetics, and product characterization, J. Anal. Appl. Pyrolysis, 121 (2016) 84–92.
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