A novel biomass air gasification process for producing tar-free higher heating value fuel gas

Cao, Yan; Wang, Yang; Riley, John T.; Pan, Wei‐Ping

doi:10.1016/j.fuproc.2005.10.003

Cited by 241 publications

(102 citation statements)

References 22 publications

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“…The obtained results of the heating values are in accordance with Cao et al (2006), Di Blasi et al (1996) and Kricka et al (2010). In terms of quantity of the pruned biomass similar values were obtained by Radojevic et al (2007).…”

Section: Discussionsupporting

confidence: 91%

Energy potential of fruit tree pruned biomass in Croatia

Bilandžija

Voća

Krička

et al. 2012

Span. j. agric. res.

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The world's most developed countries and the European Union (EU) deem that the renewable energy sources should partly substitute fossil fuels and become a "bridge" to the utilization of other energy sources of the future. This paper will present the possibility of using pruned biomass from fruit cultivars. It will also present the calculation of potential energy from the mentioned raw materials in order to determine the extent of replacement of non-renewable sources with these types of renewable energy. One of the results of the intensive fruit-growing process, in post pruning stage, is large amount of pruned biomass waste. Based on the calculated biomass (kg ha -1 ) from intensively grown woody fruit crops that are most grown in Croatia (apple, pear, apricots, peach and nectarine, sweet cherry, sour cherry, prune, walnut, hazelnut, almond, fig, grapevine, and olive) and the analysis of combustible (carbon 45.55-49.28%, hydrogen 5.91-6.83%, and sulphur 0.18-0.21%) and non-combustible matters (oxygen 43.34-46.6%, nitrogen 0.54-1.05%, moisture 3.65-8.83%, ashes 1.52-5.39%) with impact of lowering the biomass heating value (15.602-17.727 MJ kg -1 ), the energy potential of the pruned fruit biomass is calculated at 4.21 PJ.Additional key words: bioenergy; heating values; olive groves; orchards; renewable energy sources; vineyards. Resumen Potencial energético de la biomasa procedente de árboles frutales podados en CroaciaLos principales países desarrollados del mundo y de la Unión Europea (UE) consideran que las fuentes de energía renovables deberían sustituir parcialmente a los combustibles fósiles y convertirse en el futuro en un "puente" hacia la utilización de otras fuentes de energía. En este trabajo, se planteó la posibilidad de utilizar biomasa cortada procedente de cultivos frutales con el propósito de calcular el potencial energético del mencionado material en bruto, así como determinar el grado de remplazo de fuentes no renovables con este tipo de fuentes de energía renovable. Uno de los resultados del proceso de cultivo de frutales en intensivo, tras la época de poda, es la gran cantidad de biomasa cortada inútil. En base al cálculo de biomasa (kg ha -1 ) de los frutales leñosos de cultivo intensivo más comunes en el territorio de Croacia (manzano, peral, albaricoquero, melocotonero y nectarino, cerezo, guindo, ciruelo, nogal, avellano, almendro, higuera, viña y olivo) y en base al análisis de partículas combustibles (carbono 45,55-49,28%, hidrógeno 5,91-6,83% y azufre 0,18-0,21%) y de partículas no combustibles (oxígeno 43,34-46,6%, nitrógeno 0,54-1,05%, vapor de agua 3,65-8,83% y cenizas 1,52-5,39%) que influyen en el poder calorífico inferior de la biomasa (15, ), se calcula que la energía potencial de los restos de poda de frutales es 4.21 PJ.

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Section: Discussionsupporting

confidence: 91%

Energy potential of fruit tree pruned biomass in Croatia

Bilandžija

Voća

Krička

et al. 2012

Span. j. agric. res.

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“…Data from several references for gasification of different biomass were collected [4,7,[9][10][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34].…”

Section: Methodsmentioning

confidence: 99%

Neural Network Based Modeling and Operational Optimization of Biomass Gasification Processes

Souza¹,

Nemer²,

Barreto³

et al. 2012

Gasification for Practical Applications

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“…It is known that the water gas and Boudouard reactions (R3 and R4) are favoured at higher temperature [40]. Water vapour and CO 2 promote H 2 production in the biomass gasification process [42]. The influence of bed temperature on these reactions likely explains the findings where, as bed temperature was increased, the concentration of CO and H 2 increased while the concentration of CO 2 decreased.…”

Section: Effect Of Bed Reactor Temperature On the Gas Yieldmentioning

confidence: 99%

Kinetics and Performance of Raw and Torrefied Biomass in a Continuous Bubbling Fluidized Bed Gasifier

Al-Farraji

Marsh

Steer

et al. 2017

Waste Biomass Valor

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This paper is an experimental study of the kinetics of gasification of olive kernel by using a thermogravimetric fluidized bed reactor technique. Gasification of 'as received' and torrefied olive kernels were investigated in a lab-scale bubbling fluidized bed gasifier, operating at up to 3.2 kg/h. The effect of bed temperature between 550 and 750 °C in 50 °C increments on the gasification product gas at mass-based equivalence ratios of 0.15 and 0.2 was studied. To explore the potential of torrefied biomass, the gasification results were compared to that of the 'as received' biomass. The product gas from torrefied biomass produced higher H 2 , CO and CH 4 concentrations at identical oxidant flow rates in addition to higher cold gas efficiency and higher product gas heating value. The influence of equivalence ratio in gasification was also investigated at reactor temperatures of 750 °C and five equivalence ratios (0.15, 0.2, 0.25, 0.3, and 0.35). The results revealed that the torrefied biomass has the highest HHV at an equivalence ratio of 0.2 with a value of 6.09 MJ/Nm 3 , while 'as received' biomass 4.72 MJ/Nm 3 . Kinetic experiments under isothermal conditions were performed for the gasification of the materials in continuous mode. A mass balance model was successfully used to provide the capability of separately determining the rate constant of the reactions taking place. The kinetic parameters were calculated by a first order reaction model giving activation energies for 'as received' olive kernels of 84 kJ/mol and for torrefied olive kernels of 106 kJ/mol.

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A novel biomass air gasification process for producing tar-free higher heating value fuel gas

Cited by 241 publications

References 22 publications

Energy potential of fruit tree pruned biomass in Croatia

Energy potential of fruit tree pruned biomass in Croatia

Neural Network Based Modeling and Operational Optimization of Biomass Gasification Processes

Kinetics and Performance of Raw and Torrefied Biomass in a Continuous Bubbling Fluidized Bed Gasifier

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