Waste biomass to liquids: Low temperature conversion of sugarcane bagasse to bio-oil. The effect of combined hydrolysis treatments

Cunha, Josilaine A.; Pereira, Marcelo Maciel; Valente, Ligia M.M.; Piscina, Pilar Ramı́rez de la; Homs, Narcı́s; Santos, Margareth R. L.

doi:10.1016/j.biombioe.2011.02.019

Cited by 40 publications

(15 citation statements)

References 46 publications

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“…Coupling biochemical conversion of biomass, which depletes the polysaccharide fraction, with pyrolysis of the resulting residue, or bagasse, is another avenue to explore further (Islam et al, 2010;Cunha et al, 2011). Torrefaction is a low-temperature (200-400°C) thermal pretreatment that decomposes hemicellulose and may segregate disfavored products such as water and acid into intermediate streams before the next stage of pyrolysis (Zheng et al, 2013).…”

Section: Resultsmentioning

confidence: 99%

Relationships between Biomass Composition and Liquid Products Formed via Pyrolysis

et al. 2015

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Thermal conversion of biomass is a rapid, low-cost way to produce a dense liquid product, known as bio-oil, that can be refined to transportation fuels. However, utilization of bio-oil is challenging due to its chemical complexity, acidity, and instability -all results of the intricate nature of biomass. A clear understanding of how biomass properties impact yield and composition of thermal products will provide guidance to optimize both biomass and conditions for thermal conversion. To aid elucidation of these associations, we first describe biomass polymers, including phenolics, polysaccharides, acetyl groups, and inorganic ions, and the chemical interactions among them. We then discuss evidence for three roles (i.e., models) for biomass components in the formation of liquid pyrolysis products: (1) as direct sources, (2) as catalysts, and (3) as indirect factors whereby chemical interactions among components and/or cell wall structural features impact thermal conversion products. We highlight associations that might be utilized to optimize biomass content prior to pyrolysis, though a more detailed characterization is required to understand indirect effects. In combination with high-throughput biomass characterization techniques, this knowledge will enable identification of biomass particularly suited for biofuel production and can also guide genetic engineering of bioenergy crops to improve biomass features.

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Section: Resultsmentioning

confidence: 99%

Relationships between Biomass Composition and Liquid Products Formed via Pyrolysis

et al. 2015

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“…In this context, bioethanol produced from lignocellulosic biomass is an interesting alternative because these raw materials do not compete with food crops and they are also less expensive than conventional agricultural feedstocks [12][13][14]. Their hydrolysis yields fermentable sugars which can serve as chemical feedstocks and energy sources.…”

Section: Introductionmentioning

confidence: 99%

Gamma Irradiation Induced Degradation of Orange Peels

et al. 2012

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Abstract:In this study, gamma irradiation induced degradation of orange peels (OP) was investigated. The lignocellulosic biomass degradation was carried out at doses of 0 (control), 600, 1800 and 3500 kGy using a Co-60 gamma radiation source. The samples were tested for total and reducing sugars. The concentrations of total sugars ranged from 0.530 g•g but not significantly, which suggests that lignocellulose and sugars profiles were partially degraded after gamma irradiation.

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“…Besides the use of biomass as a second generation fuel feedstock, it can also be considered as a primary source of renewable energy, which can progressively enhance the CO 2 mitigation. Pyrolysis has been the most employed thermochemical conversion for transformation of biomass residues into charcoal and bio-oil, by one side due to the easy implementation of the technology nearby the farm crops and by other side due to the easy transportation of a denser product to further treatment in the refineries [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…The liquid product obtained from biomass pyrolysis is a complex mixture of oxygenated, aromatic and carbohydrate derived compounds, with a wide range of molecular weight, generated from the fragmentation of cellulose, hemicellulose and lignin, and from further polymerization and degradation reactions due to the high temperature used in the process [8][9][10]12,13]. Such bio-oils are viscous materials, with high acidity and corrosivity.…”

Section: Introductionmentioning

confidence: 99%

Physicochemical Properties of Pyrolysis Bio-Oil from Sugarcane Straw and Sugarcane in Natura

Durange¹,

Santos²,

Pereira³

et al. 2013

JBNB

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Under the renewable energy context, sugarcane biomass pyrolysis has been growing as a convenient route to produce bio-oil, which can be set into the chemical industry and refineries as building blocks or combustion fuel. In this work sugarcane straw was submitted to direct pyrolysis in a fluidized bed pilot plant at 500˚C, in presence of air. Sugarcane in natura was also pyrolysed as a model for comparison, in order to determine the viability of processing different sources of raw biomass. The physicochemical characterization of the biomass precursors as well as of the bio-oils was also carried out, which points both biomass feedstocks as suitable for bio-oil production in terms of viscosity, surface tension, density and acidity. The bio-oil obtained from sugarcane in natura presented higher carbon and hydrogen content as well as lower oxygen content. On the other hand, the metal content is higher in the bio-oil obtained from sugarcane straw, in special the iron and potassium contents were 807 ppm and 123 ppm against 27 ppm and 1 ppm in the bio-oil from sugarcane in natura. Aliphatic and aromatic compounds as well as carbohydrates scaffolds were identified as the main components of the bio-oil. GC-MS analyses showed aromatic products from lignine fragmentation and free sugars and sugar derivatives.

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Waste biomass to liquids: Low temperature conversion of sugarcane bagasse to bio-oil. The effect of combined hydrolysis treatments

Cited by 40 publications

References 46 publications

Relationships between Biomass Composition and Liquid Products Formed via Pyrolysis

Relationships between Biomass Composition and Liquid Products Formed via Pyrolysis

Gamma Irradiation Induced Degradation of Orange Peels

Physicochemical Properties of Pyrolysis Bio-Oil from Sugarcane Straw and Sugarcane in Natura

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