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Influence of feedstock demineralization on the chemical composition of pyrolysis vapours derived from sugarcane residues in py-GC/MS

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Abstract
Sugarcane bagasse (SCB) and trash (SCT) are prospective feedstock materials for fast pyrolysis systems. However, their relatively high inorganic content, especially alkali and alkaline earth metals (AAEMs), affects the quality of the produced bio-oil. In order to overcome this problem, various chemical pretreatment methods have been developed. This study aims to evaluate the effect of demineralization of SCB and SCT on the chemical composition of the bio-oil, viz. by applying micro-pyrolysis (py-GC/MS). Both biomass types were leached with demineralized water, HCl, H2SO4 and citric acid solutions at different temperatures and leaching times. The results indicate that leaching with either inorganic or organic acids, causes the yields of levoglucosan in the pyrolysis vapours to increase. This is explained by the mitigation of undesirable degradation reactions of cellulose and cellulose intermediates in the presence of catalytically active AAEMs, the latter being partially removed in the leaching process. The limited variations in yield of phenolic compounds upon different pretreatments demonstrated the stability of the lignin irrespective any leaching pretreatment. The composition of pyrolysis vapours derived from citric acid-treated biomass is hardly influenced by any changes in demineralization conditions.
Keywords
sugar cane bagasse, sugar cane trash, pyrolysis, removal, ash

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Chicago
Rodríguez Machín, Lizet, Luis E Arteaga-Pérez, Raúl A Pérez Bermúdez, Jop Vercruysse, Wolter Prins, and Frederik Ronsse. 2016. “Influence of Feedstock Demineralization on the Chemical Composition of Pyrolysis Vapours Derived from Sugarcane Residues in py-GC/MS.” In 24th EUBCE 2016 : European Biomass Conference and Exhibition Proceedings. Florence, Italy: ETA-Florence Renewable Energies.
APA
Rodríguez Machín, L., Arteaga-Pérez, L. E., Pérez Bermúdez, R. A., Vercruysse, J., Prins, W., & Ronsse, F. (2016). Influence of feedstock demineralization on the chemical composition of pyrolysis vapours derived from sugarcane residues in py-GC/MS. 24th EUBCE 2016 : European biomass conference and exhibition proceedings. Presented at the 24th European Biomass conference and exhibition (EUBCE 2016), Florence, Italy: ETA-Florence Renewable Energies.
Vancouver
1.
Rodríguez Machín L, Arteaga-Pérez LE, Pérez Bermúdez RA, Vercruysse J, Prins W, Ronsse F. Influence of feedstock demineralization on the chemical composition of pyrolysis vapours derived from sugarcane residues in py-GC/MS. 24th EUBCE 2016 : European biomass conference and exhibition proceedings. Florence, Italy: ETA-Florence Renewable Energies; 2016.
MLA
Rodríguez Machín, Lizet, Luis E Arteaga-Pérez, Raúl A Pérez Bermúdez, et al. “Influence of Feedstock Demineralization on the Chemical Composition of Pyrolysis Vapours Derived from Sugarcane Residues in py-GC/MS.” 24th EUBCE 2016 : European Biomass Conference and Exhibition Proceedings. Florence, Italy: ETA-Florence Renewable Energies, 2016. Print.
@inproceedings{8045320,
  abstract     = {Sugarcane bagasse (SCB) and trash (SCT) are prospective feedstock materials for fast pyrolysis systems. However, their relatively high inorganic content, especially alkali and alkaline earth metals (AAEMs), affects the quality of the produced bio-oil. In order to overcome this problem, various chemical pretreatment methods have been developed. This study aims to evaluate the effect of demineralization of SCB and SCT on the chemical composition of the bio-oil, viz. by applying micro-pyrolysis (py-GC/MS). Both biomass types were leached with demineralized water, HCl, H2SO4 and citric acid solutions at different temperatures and leaching times. The results indicate that leaching with either inorganic or organic acids, causes the yields of levoglucosan in the pyrolysis vapours to increase. This is explained by the mitigation of undesirable degradation reactions of cellulose and cellulose intermediates in the presence of catalytically active AAEMs, the latter being partially removed in the leaching process. The limited variations in yield of phenolic compounds upon different pretreatments demonstrated the stability of the lignin irrespective any leaching pretreatment. The composition of pyrolysis vapours derived from citric acid-treated biomass is hardly influenced by any changes in demineralization conditions.},
  author       = {Rodríguez Machín, Lizet and Arteaga-Pérez, Luis E and Pérez Bermúdez, Raúl A and Vercruysse, Jop and Prins, Wolter and Ronsse, Frederik},
  booktitle    = {24th EUBCE 2016 : European biomass conference and exhibition proceedings},
  isbn         = {9788889407165},
  keywords     = {sugar cane bagasse,sugar cane trash,pyrolysis,removal,ash},
  language     = {eng},
  location     = {Amsterdam, The Netherlands},
  publisher    = {ETA-Florence Renewable Energies},
  title        = {Influence of feedstock demineralization on the chemical composition of pyrolysis vapours derived from sugarcane residues in py-GC/MS},
  url          = {http://www.etaflorence.it/proceedings/index.asp?detail=12593&mode=keyword&categories=0&items=pyrolysis&keywords=p},
  year         = {2016},
}