Catalytic gasification of woody biomass in an air-blown fluidized-bed reactor using Canadian limonite iron ore as the bed material

Hurley, Scott; Xu, Chunbao; Preto, Fernando; Shao, Yuanyuan; Li, Hanning; Wang, Jinsheng; Tourigny, Guy

doi:10.1016/j.fuel.2011.07.016

Cited by 43 publications

(18 citation statements)

References 35 publications

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“…It should be noted that the hydrogen yields obtained from seaweeds in this study considerably higher than that reported for catalytic gasification of lignocellulosic biomasses in literature. In previous studies, hydrogen yields were found as approximately 5.0 mol/kg-biomass for pine sawdust (Hurley et al, 2012); approximately 650 cc/g biomass for cedar wood (Uddin et al, 2008); 24.6 mmol/g biomass (daf) for livestock manure compost ; 60 mmol/g biomass (daf) for red pine , 1104 ml/g biomass (daf) for fowl manure . A direct quantitative comparison between above data and our yields cannot be done because of differences in gasification conditions and process configurations.…”

Section: Gas Yields From Steam Gasification Of Algaementioning

confidence: 93%

“…In the case of using secondary catalytic bed, many type of catalysts were studied (Hu et al, 2006;Florin and Harris, 2008;Kimure et al, 2006). Iron based catalysts are widely used to decompose of tar (Min et al, 2011;Uddin et al 2008;Khelfa et al, 2009;Hurley et al, 2012;Xie et al, 2009;Tang et al, 2010;Xiwei et al, 2012). In addition they enhance water gas shift reaction (H 2 O + CO ?…”

Section: Introductionmentioning

confidence: 99%

“…H 2 + CO 2 ) which produces H 2 . A previous study by Hurley et al (2012) demonstrated that the iron ore (limonite) produced a higher yield of hydrogen than that of olivine in gasification of woody biomass in an air-blown fluidized-bed reactor. Khelfa et al (2009) reported that in the presence of steam, haematite is active in the gasification and hydrogen production, is able to breakdown the tar produced during the thermal degradation of the lignocellulosic biomass.…”

Section: Introductionmentioning

confidence: 99%

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Hydrogen production from algal biomass via steam gasification

Duman

Uddin

Yanık

2014

Bioresource Technology

173

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Algal biomasses were tested as feedstock for steam gasification in a dual-bed microreactor in a two-stage process. Gasification experiments were carried out in absence and presence of catalyst. The catalysts used were 10% Fe2O3-90% CeO2 and red mud (activated and natural forms). Effects of catalysts on tar formation and gasification efficiencies were comparatively investigated. It was observed that the characteristic of algae gasification was dependent on its components and the catalysts used. The main role of the catalyst was reforming of the tar derived from algae pyrolysis, besides enhancing water gas shift reaction. The tar reduction levels were in the range of 80-100% for seaweeds and of 53-70% for microalgae. Fe2O3-CeO2 was found to be the most effective catalyst. The maximum hydrogen yields obtained were 1036cc/g algae for Fucus serratus, 937cc/g algae for Laminaria digitata and 413cc/g algae for Nannochloropsis oculata.FP7 Marie-Curie IAPP-Project (230598

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Section: Gas Yields From Steam Gasification Of Algaementioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hydrogen production from algal biomass via steam gasification

Duman

Uddin

Yanık

2014

Bioresource Technology

173

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“…Researchers are using various minerals as catalysts in this decomposition process such as olivine, [10][11][12][13] clay minerals, 14,15) and iron ores. [16][17][18] Scrutinizing the properties of each biomass pyrolysis product, it is highly likely that bio-char can be used as a catalyst for decomposition of bio-tar, and which will increase the efficiency of biomass utilization. Studies on bio-char production [19][20][21][22][23][24][25] and bio-tar catalytic decomposition, [26][27][28][29][30][31][32] have been conducted separately.…”

Section: )mentioning

confidence: 99%

Development of Carbon-infiltrated Bio-char from Oil Palm Empty Fruit Bunch

et al. 2015

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This paper presents a technology to utilize bio-char and bio-tar from the pyrolysis of oil palm empty fruit bunch, EFB. In this study, tar vapor from pyrolysis of EFB was infiltrated within porous bio-char and carbon deposition occurred on the pore surface by chemical vapor infiltration process. For preparation, EFB particles were made into pellets. In the first part of experiments, porous bio-char pellets were produced by slowly heating the EFB pellets in a tube furnace in argon atmosphere to terminal temperatures of 500-800°C. In the second part, the porous bio-char pellets were used as precursor for tar decomposition process to deposit carbon within the bio-char pores. Tar vapor was obtained from the pyrolysis of EFB at 400-500°C at a fast heating rate for tar decomposition to occur. The purpose of this research is to investigate the amount of carbon deposited within bio-char by this tar carbonization process as compared to carbon contents of metallurgical coke. We showed how EFB bio-char was used as the tar filter and in the process to produce carbon-infiltrated bio-char, a useful renewable energy source for ironmaking process.

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“…On the other hand the available H 2 could have been favorably spent for hydrogenating gasification. The bed material used in the simulations was non catalytic SiO 2 and according to some previous studies [16], the yield of combustible gasses and especially the yield of H 2 could have been enhanced by using other types of catalytic bed materials. In that case the simulation stage would require the specific kinetic data regarding to the specific catalytic material.…”

Section: Gas Productionmentioning

confidence: 99%

Simulation and optimization of the steam gasification process using CPFD

Perera¹,

Thapa²,

Halvorsen³

2014

WIT Transactions on Ecology and the Environment

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Steam gasification is a well-known technology, which is used to produce a high quality product of gas, especially for power generation applications. The gas composition, gas quality and the purity has a great role to play depending on the end application. Hence the bio mass steam gasification process was studied using the Computational Particle Fluid Dynamics (CPFD) simulation tool, 'Barracuda VRTM'. The software is well suited for simulating dense particle laden fluids due to its numerical solving methods for both the particles and the fluid.Both the experiments and simulations were carried out for a cylindrical isothermal fluidized bed reactor without chemistry, to compare the deviations of simulation results from the experimental results. The simulation results were agreed with the experimental results and they confirmed the same minimum fluidization velocity.Three dimensional simulations were carried out for a cylindrical geometry to study energy, and momentum transport within a simplified dual fluidized bed steam gasification reactor and the important chemistry were included. According to the simulation results, the product gas mainly consisted of CO and the amount of H 2 was less in comparison to the higher amounts of CH 4 .The cumulative production of combustible gasses (CO, CH 4 and H 2 ) was estimated as 280 Sm 3 /day based on the simulation results.

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Catalytic gasification of woody biomass in an air-blown fluidized-bed reactor using Canadian limonite iron ore as the bed material

Cited by 43 publications

References 35 publications

Hydrogen production from algal biomass via steam gasification

Hydrogen production from algal biomass via steam gasification

Development of Carbon-infiltrated Bio-char from Oil Palm Empty Fruit Bunch

Simulation and optimization of the steam gasification process using CPFD

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