Properties of bio-oils produced by biomass fast pyrolysis in a cyclone reactor

Lédé, Jacques; Broust, François; Ndiaye, Fatou-Toutie; Ferrer, Monique

doi:10.1016/j.fuel.2006.12.024

Cited by 136 publications

(49 citation statements)

References 16 publications

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“…We can highlight the iron content, which is 807 ppm for BIOSS and only 27 ppm for BIOSC, and the potassium content that is 123 ppm for BIOSS and 1 ppm for BIOSC. These values are in agreement with those reported for other bio-oils from lignocellulosic biomass, which comprehends a large range of metal content [20]. The higher concentration of metals may have affected the pyrolysis, acting as catalyst and increasing the aromatic production, as observed in the FT-IR spectra (vide infra).…”

Section: Resultssupporting

confidence: 90%

“…The measured water content for BIOSS was of 5.3% and for BIOSC of 5.5%, lower values than those reported for bio-oils from different bio-mass, including sugarcane, which ranged from 15% to 30% [19]. As described in the literature, the water content is very dependent of the condensation process, fractions of bio-oils collected at different temperatures presented variable amounts of water, which increased at lower condensation temperatures [20]. In the present process, the condensation temperature was of 130˚C, which consequently lowered the water content of the oil.…”

Section: Resultsmentioning

confidence: 52%

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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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Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 52%

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

Durange¹,

Santos²,

Pereira³

et al. 2013

JBNB

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“…Biocrude oil from fluidized bed reactor pyrolysis is particle-loaded [11], a major disadvantage which is not observed in liquid-phase pyrolysis. All liquid products are completely ethanol-soluble.…”

Section: Liquid Productsmentioning

confidence: 99%

Liquid and Solid Products from Liquid-Phase Pyrolysis of Softwood

et al. 2011

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Lignocellulosic feed is expected to contribute significantly to production of liquified and solid combustibles in future, because of the quantity and the variety of feed material. The aim of the project is the production of high-quality biochar and a liquid energy carrier in a nonaqueous hydrocarbon-based pyrolysis system. Therefore, the pyrolytic degradation properties of wood and its building blocks glucose, cellulose, hemicellulose, and lignin were investigated during liquid-phase pyrolysis conditions. The process was carried out in a semibatch reaction vessel under isothermal conditions at various temperatures between T=350°C and T=390°C. Process pressure was ambient. For optimum heat transfer, pyrolysis was carried out in a liquid heat carrier phase which provides sufficient heat capacity and high heat conductivity for isothermal operation. The interaction between heat carrier, biomass, and biomass products in the liquid and vapor phases was investigated. Liquid-phase pyrolysis is an exothermic process which produces 25-28% liquid CHO products. The heat of reaction is −864±25 kJ/kg at T=350°C. To quantify products of biogenous and fossil origin, liquid products were analyzed by elemental analysis, gas chromatography, and accelerated mass spectroscopy. Solid products were analyzed by elemental analysis, electron microscopy, and accelerated mass spectroscopy.

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“…Their application in biomass thermochemical conversion came as a natural option due to their suitability for continuous operation with good thermal and hydrodynamic uniformity. There are other unconventional types of reactors, which are relatively new and still under research and development, such as the ablative [1], pyroformer [2], free fall [3], cyclone, and rotating cone [4]. The design and performance of some of these reactors are briefly discussed in the last section of this chapter.…”

Section: Types Of Reactorsmentioning

confidence: 99%

Reactor Design and its Impact on Performance and Products

Makkawi

2014

Transformation of Biomass

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Properties of bio-oils produced by biomass fast pyrolysis in a cyclone reactor

Cited by 136 publications

References 16 publications

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

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

Liquid and Solid Products from Liquid-Phase Pyrolysis of Softwood

Reactor Design and its Impact on Performance and Products

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