An overview of fast pyrolysis of biomass

Bridgwater, A.V.; Meier, Dietrich; Radlein, Desmond

doi:10.1016/s0146-6380(99)00120-5

Cited by 1,525 publications

(981 citation statements)

References 14 publications

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“…The water content for bio-oil obtained by pyrolysis of AKP sludge is 10.3%, for OLDA sludge 17.0%. These values are significantly lower than the water content of bio-oils obtained from pyrolysis of other biomasses which ranges between 20 and 40% [11,13].…”

Section: Pyrolysis Products -General Featuresmentioning

confidence: 68%

“…Pyrolysis oil derived from sludge in this way results in a dark brown liquid that consists of a complex mixture of oxygenated hydrocarbons. The liquid product can be stored until required or readily transported to where it can be most effectively utilized [11]. The economic viability of pyrolysis may be improved if value-added products could be produced from the solids (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Study of bio-oils and solids from flash pyrolysis of sewage sludges

Pokorna

Postelmans

Jenı́ček

et al. 2009

Fuel

181

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a b s t r a c tThe aim of this study was to evaluate the production of pyrolysis oil from three types of sewage sludges. The flash pyrolysis was performed at 500°C, the maximum oil yield was 43.1%, and the water content in bio-oils obtained from secondary sludges was relatively low -10.3% and 17.0%. GC-MS results showed that pyrolytic bio-oils of studied sludges dominantly contained fatty acids and nitrogenous compounds with potential added value.Obtained solids had high ash content and low calorific value which make them unattractive for use in incineration. FT-IR results showed that solids gave similar IR features as notified alumino silicates; utilization of these solids as adsorbents could be a potential valorization.

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Section: Pyrolysis Products -General Featuresmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Study of bio-oils and solids from flash pyrolysis of sewage sludges

Pokorna

Postelmans

Jenı́ček

et al. 2009

Fuel

181

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“…[31][32][33] Nevertheless, they have several undesirable features such as high oxygen content, low heat content, high viscosity at low temperature, and chemical instability [31][32][33] that impede their use as quality transportation fuels. To overcome this limitation, studies have been taken to upgrade the bio-oils to high quality fuels.…”

Section: Bio-oil and Bio-syngasmentioning

confidence: 99%

Biofuels from Microalgae

Horsman

et al. 2008

Biotechnology Progress

956

397

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Microalgae are a diverse group of prokaryotic and eukaryotic photosynthetic microorganisms that grow rapidly due to their simple structure. They can potentially be employed for the production of biofuels in an economically effective and environmentally sustainable manner. Microalgae have been investigated for the production of a number of different biofuels including biodiesel, bio-oil, bio-syngas, and bio-hydrogen. The production of these biofuels can be coupled with flue gas CO 2 mitigation, wastewater treatment, and the production of high-value chemicals. Microalgal farming can also be carried out with seawater using marine microalgal species as the producers. Developments in microalgal cultivation and downstream processing (e.g., harvesting, drying, and thermochemical processing) are expected to further enhance the costeffectiveness of the biofuel from microalgae strategy.

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“…Biomass undergoing thermal decomposition retains its morphology even in harsh thermal treatment regimes (Pohlmann et al, 2014). Biomass is a poor conductor of heat (conductivity <0.1 W/m K) (Bridgwater et al, 1999), and large temperature gradients occur in heated biomass particles (Bryden et al, 2002). Most reactor systems for thermal degradation require size reduction of biomass particles; as an example, fluidized beds require particle sizes no larger than 2 mm (Bridgwater et al, 1999) to ensure rapid reaction.…”

Section: Model 3: Interactions and Linkages Between Primary Componentsmentioning

confidence: 99%

“…Numerous studies highlight the advantages of displacing petroleum fuels with industrial production of liquid fuels from thermochemical conversion of biomass (Bridgwater et al, 1999;Perlack et al, 2005;Mohan et al, 2006;NSF, 2008). Thermochemical conversion entails heating of biomass in an anoxic environment; condensation of organic liquid products, known as bio-oil; and subsequent treatment of the products with catalysts to create liquid fuels, i.e., refined bio-oil, similar to petroleum-derived gasoline or diesel.…”

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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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An overview of fast pyrolysis of biomass

Cited by 1,525 publications

References 14 publications

Study of bio-oils and solids from flash pyrolysis of sewage sludges

Study of bio-oils and solids from flash pyrolysis of sewage sludges

Biofuels from Microalgae

Relationships between Biomass Composition and Liquid Products Formed via Pyrolysis

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