Rheological Characterization of Bio-Oils from Pilot Scale Microwave Assisted Pyrolysis

Karunanithy, Chinnadurai; Muthukumarappan, Kasiviswanathan

doi:10.5772/17621

Cited by 11 publications

(10 citation statements)

References 82 publications

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“…The viscosity of bio‐oil plays a significant role in the design and operation of the fuel injection system as well as the fuel's atomization and subsequent combustion properties 5,6 . The high viscosity of bio‐oil can result in poor atomization, incomplete combustion, the formation of excessive carbon deposits on injection nozzles and in the combustion chamber, and contamination of the lubricating oil with unburnt residues 7 . To utilize bio‐oil as a liquid fuel in engine application it is imperative to lower its viscosity to 10–20 cP as recommended by Oasmaa et al 8 …”

Section: Introductionmentioning

confidence: 99%

“…The viscosity of bio‐oil is affected by factors including biomass type, storage time, water content, and temperature 1,9 . Bio‐oil's viscosity increases during storage and this is attributed to the polymerization and condensation reactions between various compounds present in the bio‐oil leading to formation of larger molecules 7,10 . There is also a reduction in the water content of the bio‐oil due to evaporation taking place during storage, hence increasing its viscosity 6 .…”

Section: Introductionmentioning

confidence: 99%

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Temperature‐dependent viscosity of bio‐oil derived from white pine and Norway spruce needles

Oginni

Tingi

2021

Biofuels Bioprod Bioref

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Viscosity plays a significant role in the utilization of bio‐oil as a liquid transportation fuel. This study investigated the influence of temperature on the viscosity of bio‐oils derived from white pine and from Norway spruce needles. The bio‐oils were produced by pyrolyzing the biomass samples in a fixed‐bed batch reactor at a temperature of 500 °C for 30 min. The viscosity of the bio‐oils was determined at a temperature range of 20–80 °C. The bio‐oil yield was estimated to be 36.32% and 28.84% for white pine and Norway spruce needles, respectively. The viscosity of bio‐oils derived from white pine and Norway spruce needles decreased from 177.67 to 54 cP and from 161.17 to 37.67 cP, respectively, as the temperature increased from 20 to 80 °C. Among the three models (Arrhenius, modified Williams–Landel–Ferry, and the power law) used to describe the temperature‐viscosity relationship of the bio‐oils, the Arrhenius model presented the best fit for the experimental data with activation energy of 16.80 and 20.79 kJ/mol–1 for bio‐oils derived from white pine and Norway spruce needles, respectively. © 2021 Society of Chemical Industry and John Wiley & Sons, Ltd

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Temperature‐dependent viscosity of bio‐oil derived from white pine and Norway spruce needles

Oginni

Tingi

2021

Biofuels Bioprod Bioref

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“…For this reason, it is necessary to evaluate its physical and chemical properties, which determine its quality, in order to meet the fuel criteria or in general the characteristics necessary for the process in which it will be used (in this case work, as feed for the gasification process). The above can be achieved if the bio-oil has (i) low particulate matter (ii) good homogeneity and stability, and (iii) a justifiably high flash point [18].…”

Section: Properties Of Bio-oilsmentioning

confidence: 99%

Waste-Based Intermediate Bioenergy Carriers: Syngas Production via Coupling Slow Pyrolysis with Gasification under a Circular Economy Model

Frantzi

Zabaniotou

2021

Energies

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Waste-based feedstocks and bioenergy intermediate carriers are key issues of the whole bioenergy value chain. Towards a circular economy, changing upcycling infra-structure systems takes time, while energy-from-waste (EfW) technologies like waste pyrolysis and gasification could play an integral part. Thus, the aim of this study is to propose a circular economy pathway for the waste to energy (WtE) thermochemical technologies, through which solid biomass waste can be slowly pyrolyzed to biochar (main product), in various regionally distributed small plants, and the pyro-oils, by-products of those plants could be used as an intermediate energy carrier to fuel a central gasification plant for syngas production. Through the performed review, the main parameters of the whole process chain, from waste to syngas, were discussed. The study develops a conceptual model that can be implemented for overcoming barriers to the broad deployment of WtE solutions. The proposed model of WtE facilities is changing the recycling economy into a circular economy, where nothing is wasted, while a carbon-negative energy carrier can be achieved. The downstream side of the process (cleaning of syngas) and the economic feasibility of the dual such system need optimization.

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“…In microwave-induced pyrolysis, focussed heating by microwaves makes the resulting pyrolysis different from the traditional pyrolysis. Microwave-induced pyrolysis does not require in general agitation, fluidization or a high degree of grinding, and, furthermore, it can be used for the treatment of mixed feedstocks such as municipal solid wastes [48].…”

Section: Industrial Applications Of Pyrolysismentioning

confidence: 99%

Introductory Chapter: Pyrolysis

Ibrahim¹

2020

Recent Advances in Pyrolysis

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Rheological Characterization of Bio-Oils from Pilot Scale Microwave Assisted Pyrolysis

Cited by 11 publications

References 82 publications

Temperature‐dependent viscosity of bio‐oil derived from white pine and Norway spruce needles

Temperature‐dependent viscosity of bio‐oil derived from white pine and Norway spruce needles

Waste-Based Intermediate Bioenergy Carriers: Syngas Production via Coupling Slow Pyrolysis with Gasification under a Circular Economy Model

Introductory Chapter: Pyrolysis

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