Steam/oxygen biomass gasification at pilot scale in an internally circulating bubbling fluidized bed reactor

Barisano, D.; Canneto, Giuseppe; Nanna, F.; Alvino, E.; Pinto, Giuseppe; Villone, A.; Carnevale, M.; Valerio, V.; Battafarano, A.; Braccio, Giacobbe

doi:10.1016/j.fuproc.2015.06.008

Cited by 85 publications

(39 citation statements)

References 52 publications

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“…Hydrothermal carbonisation is a thermal cracking used to produce crude-like oil and hydrochar under moderate temperature and high pressure [41] using aqueous solvent [42], nonaqueous solvent [43,44] or subcritical/critical media [45]. Finally, gasification is the conversion of biomass into combustible gas by heating in air [46], pure oxygen or steam [47] at temperatures higher than 800°C with or without a catalyst [48]. Products from gasification are a mixture of carbon monoxide, carbon dioxide, methane, hydrogen and water vapour.…”

Section: Biochar: Production Waysmentioning

confidence: 99%

Towards Traditional Carbon Fillers: Biochar-Based Reinforced Plastic

Bartoli¹,

Giorcelli²,

Jagdale³

et al. 2021

Fillers

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The global market of carbon-reinforced plastic represents one of the largest economic platforms. This sector is dominated by carbon black (CB) produced from traditional oil industry. Recently, high technological fillers such as carbon fibres or nanostructured carbon (i.e. carbon nanotubes, graphene, graphene oxide) fillers have tried to exploit their potential but without economic success. So, in this chapter we are going to analyse the use of an unconventional carbon filler called biochar. Biochar is the solid residue of pyrolysis and can be a solid and sustainable replacement for traditional and expensive fillers. In this chapter, we will provide overview of the last advancement in the use of biochar as filler for the production of reinforced plastics.

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Section: Biochar: Production Waysmentioning

confidence: 99%

Towards Traditional Carbon Fillers: Biochar-Based Reinforced Plastic

Bartoli¹,

Giorcelli²,

Jagdale³

et al. 2021

Fillers

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“…The heating value increases with increasing steam content of the gasifying agent, while heating value decreases as air increases in the gasifying agent [24]. The steam/oxygen mixture represents a zero nitrogen-gasifying agent which increase heating value and allow liquefying the produced gas after proper treatment [37]. Using almond shells, the lower heating value was 5.9-6.7, 6.3-8.4, and 10.9-11.7 MJ/Nm 3 using the gasifying agent: 35 wt.% O 2 enriched air, 50 wt.% O 2 enriched air, and steam/oxygen mixture, respectively.…”

Section: Superficial Velocitymentioning

confidence: 99%

Review of Biomass Thermal Gasification

Hamad¹,

Radwan²,

AshrafAmin³

2017

Biomass Volume Estimation and Valorization for Energy

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Gasification of biomass is one of the most attractive methods for producing hydrogen rich gas. Syngas production from biomass is an attractive solution for energy crisis. The production of energy from biomass reduces the dependence of developing countries on fossil fuels, as ample biomass is available in the developing countries and is renewable. Downdraft gasifiers are fixed bed gasifiers where the gasifying agent and biomass are flowing downwards, developed for high-volatile fuels such as wood or biomass gasification. Cocurrent flow regime throughout the oxidation and reduction zones reduces the tars and particulates in syngas, which will reduce the necessity of complicated cleaning methods compared to updraft gasifiers especially if the gas is used as a burnable gas in a small community. It is important to ensure homogenous distribution of gasifying agent at the downdraft gasifier throat. This chapter presents latest trends in gasification of biomass using downdraft gasification.

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“…Biomass, the third largest source of energy in the world, has been receiving more and more attention. Unfortunately, the high cost of oxygen restricts the development of pure oxygen gasification technology [4][5][6][7]. Currently, the utilization technologies of biomass mainly include thermochemical conversion, physical transformation and biological transformation [2].…”

Section: Introductionmentioning

confidence: 99%

“…The highest heating value of syngas produced by pure oxygen gasification reaches desired level compared to the other agent's gasification. Unfortunately, the high cost of oxygen restricts the development of pure oxygen gasification technology [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic modeling of the combined CLG–CLHG system for syngas and hydrogen generation

Wang

Qin

et al. 2017

Env Prog and Sustain Energy

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The combined CLG and CLHG is a novel technology for the co‐generation of syngas and H2‐riched gas. In CLG process, the reduction of oxygen carrier with biomass can produce syngas. In CLHG process, the oxidation of oxygen carrier with steam can produce H2‐riched gas. In this study, the Ce‐based oxygen carrier was selected as the candidate material based on the Gibbs free energy changes (ΔG) of the splitting water reactions. The redox mechanism of the Ce‐based oxygen carrier was discussed and thermodynamic analysis of syngas and hydrogen generation was performed by Gibbs free energy minimization method. The optimal O/C in the GR was determined as 0.6–0.8 and the total dry concentration of CO and H2 was higher than 95.0% under 850–1000°C. The optimal S/C in the SR was determined as 2–3 and the H2 fraction was higher than 70.0% under 850–1000°C. In the AR, all of the Ce oxides can be regenerated to CeO2 in the air flow of 0.5 kmol at 700°C. After one CLG–CLHG cycle, there was no carbon deposition on the surface of oxygen carrier. The redox mechanism of the Ce‐based oxygen carrier was defined as: CeO2↔CeO1.83↔CeO1.72↔Ce2O3. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 1132–1139, 2018

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Steam/oxygen biomass gasification at pilot scale in an internally circulating bubbling fluidized bed reactor

Cited by 85 publications

References 52 publications

Towards Traditional Carbon Fillers: Biochar-Based Reinforced Plastic

Towards Traditional Carbon Fillers: Biochar-Based Reinforced Plastic

Review of Biomass Thermal Gasification

Thermodynamic modeling of the combined CLG–CLHG system for syngas and hydrogen generation

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