From agriculture residue to upgraded product: The thermochemical conversion of sugarcane bagasse for fuel and chemical products

Schmitt, Caroline Carriel; Moreira, Renata; Neves, Ricardo Pires das; Richter, Daniel deB.; Funke, Axel; Raffelt, Klaus; Grunwaldt, Jan‐Dierk; Dahmen, Nicolaus

doi:10.1016/j.fuproc.2019.106199

Cited by 54 publications

(30 citation statements)

References 82 publications

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“…For the husk biomass, cellulose was the largest fraction obtained in NS sample (40.1 wt%), hemicellulose in AS (39.8 wt%), and lignin in PS (36.3 wt%). These results were agreed with previously works 28–30 …”

Section: Resultssupporting

confidence: 94%

“…Thus, a peak was observed in the region between 3600 and 3000 cm −1 , corresponding to the stretching vibration of O‐H associated with the presence of cellulose and lignin 34 . These vibrations indicated there were phenols and alcohols in the final bio‐oil 29 . The C▬H stretching vibrations between 3000 and 2700 cm −1 and the C▬H deformation vibrations between 1350 and 1475 cm −1 indicated there were alkanes related to lignin in the structure, 29,35 as well as to the residual fatty acids in OP.…”

Section: Resultsmentioning

confidence: 95%

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Catalytic effect of alkali and alkaline earth metals on fast pyrolysis pre‐treatment of agricultural waste

Alcazar-Ruiz¹,

Sánchez-Silva²,

Dorado³

2021

Biofuels Bioprod Bioref

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The catalytic effect of mineral components (K, Ca, Mg and Na), after pre‐treatment by water leaching and adding NaCl, was evaluated in fast pyrolysis with the biomass of four types of agricultural waste (olive pomace, nutshell, almond shell, and pistachio shell). Water leaching proved to be effective at reducing mineral content in the raw materials, especially in terms of removing K. As a consequence, there was lower decarboxylation activity during fast pyrolysis, and a lower yield of phenolic compounds was obtained. The effect of adding NaCl was evaluated by varying its ratio in the blend (1, 3 and 5 wt%) and it promoted cracking and dehydration reactions, favoring the formation of light molecular‐weight compounds as carboxylic acids. © 2021 The Authors. Biofuels, Bioproducts and Biorefining published by Society of Industrial Chemistry and John Wiley & Sons Ltd.

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Section: Resultssupporting

confidence: 94%

Section: Resultsmentioning

confidence: 95%

Catalytic effect of alkali and alkaline earth metals on fast pyrolysis pre‐treatment of agricultural waste

Alcazar-Ruiz¹,

Sánchez-Silva²,

Dorado³

2021

Biofuels Bioprod Bioref

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“…Among the products, phenol was observed in higher concentrations in the UOP Ni,225 A number of 24 compounds belonging to the guaiacol group were identified in the BWBO, with guaiacol (0.621 wt.% dry basis), 4-methyl-guaiacol (0.683 wt.% dry basis), eugenol (0.22 wt.% dry basis), cis-isoeugenol (0.32 wt.% dry basis), vanillin (0.47 wt.% dry basis), and acetoguaiacone (0.34 wt.% dry basis) among the main compounds. Eugenol and isoeugenol were hydrogenated to 4-propylguaiacol, as previously reported [13,61]. The concentration of guaiacol reduced slightly to 0.18 g with Ni and to 0.17 g with Ni-Cr.…”

Section: Characterization Of Upgraded Liquid Products and Feedstocks supporting

confidence: 54%

“…Further hydrodeoxygenation of 1-propanol could result in the formation of propane, observed in upgrading reactions conducted with Ni-Cr. Ethylene glycol formation, on the other hand, has been reportedly attributed to hydrogenation of hydroxyacetaldehyde [28,61]. UBWBO was almost free of alcohol, with minor concentrations of 2,4-dimethylcyclopentanol, a product of hydrogenation of 2,4-dimethyl cyclopentanone.…”

Section: Characterization Of Upgraded Liquid Products and Feedstocks mentioning

confidence: 99%

Evaluation of High-Loaded Ni-Based Catalysts for Upgrading Fast Pyrolysis Bio-Oil

et al. 2019

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The catalytic activity of high-loaded Ni-based catalysts for beech wood fast-pyrolysis bio-oil hydrotreatment is compared to Ru/C. The influence of promoter, temperature, reaction time, and consecutive upgrading is investigated. The catalytic activity is addressed in terms of elemental composition, pH value, H2 consumption, and water content, while the selectivity is based on the GC-MS/FID results. The catalysts showed similar deoxygenation activity, while the highest hydrogenation activity and the highest upgraded oil yields were obtained with Ni-based catalysts. The elemental composition of upgraded oils was comparable for 2 and 4 h of reaction, and the temperature showed a positive effect for reactions with Ni–Cr and Ru/C. Ni–Cr showed superior activity for the conversion of organic acids, sugars and ketones, being selected for the 2-step upgrading reaction. The highest activity correlates to the strength of the acid sites promoted by Cr2O3. Consecutive upgrading reduced the content of oxygen by 64.8% and the water content by 90%, whereas the higher heating value increased by 90.1%. While more than 96% of the organic acid content was converted, the discrepancy of aromatic compounds quantified by 1H-NMR and GC-MS/FID may indicate polymerization of aromatics taking place during the second upgrading step.

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“…A produção anual de cana-de-açúcar em todo o mundo foi estimada em aproximadamente 1,6 bilhão de toneladas. Considerando que para cada tonelada de cana-de-açúcar produzida, são geradas 0,28 toneladas de bagaço, 448 milhões de toneladas de bagaço são geradas anualmente em todo o mundo (Schmitt et al, 2020). Ainda segundo esses autores no Brasil são produzidos aproximadamente 178 milhões de toneladas de bagaço.…”

Section: Introductionunclassified

Resíduos orgânicos e biocarvões para fins de condicionante de solos

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et al. 2021

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O objetivo do presente estudo foi caracterizar matérias-primas e biocarvões produzidos em condições de laboratório, além de fornecer informações referentes a viabilidade de uso do biocarvão no solo. Assim, numa primeira etapa o biocarvão foi produzido a partir da amostra seca de biossólido (BP) e de bagaço de cana-de-açúcar (BCP), por meio da pirólise lenta a temperatura de 350°C por 30 minutos. Numa segunda etapa foi realizado a caracterização das matérias-primas e seus respectivos biocarvões. Foi utilizado um delineamento com cinco repetições, sendo que os tratamentos foram constituídos por: biossólido puro; bagaço de cana-de-açúcar puro; biocarvão de biossólido (BB); biocarvão do bagaço de cana-de-açúcar (BBC). Onde a avaliação dos resíduos foi por meio das análises de: rendimento de massas, imediatas, potencial hidrogeniônico, capacidade de troca catiônica, teor de nutrientes, espectrometria de fluorescência de raio x, bromatológica, densidade e tamanho de partículas. Os dados obtidos foram submetidos à análise de variância (ANOVA) pelo programa SISVAR. Para comparação de médias, foi utilizado o teste de Tukey a 5% de probabilidade (p<0,05). Conclui-se que tanto as matérias-primas quanto os biocarvões, produzidos por pirólise lenta a 350ºC, apresentaram características propícias para o uso agrícola, principalmente em termos de fertilidade.

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From agriculture residue to upgraded product: The thermochemical conversion of sugarcane bagasse for fuel and chemical products

Cited by 54 publications

References 82 publications

Catalytic effect of alkali and alkaline earth metals on fast pyrolysis pre‐treatment of agricultural waste

Catalytic effect of alkali and alkaline earth metals on fast pyrolysis pre‐treatment of agricultural waste

Evaluation of High-Loaded Ni-Based Catalysts for Upgrading Fast Pyrolysis Bio-Oil

Resíduos orgânicos e biocarvões para fins de condicionante de solos

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