Simultaneous catalytic H2 production and CO2 capture in steam reforming of toluene as tar model compound from biomass gasification

Zamboni, Ingrid; Courson, Claire; Nižňanský, Daniel; Kiennemann, A.

doi:10.1016/j.apcatb.2013.02.046

Cited by 49 publications

(25 citation statements)

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“…Bampenrat et al incorporated manganese ions to ceria lattice on Ni/CeO 2 ‐ZrO 2 catalyst and found that the oxygen storage capacity and oxygen mobility on the catalyst surface improved, resulting in faster carbon removal. Another way is by modifying the catalyst with basic metal addition . Viinikainen et al reported that higher basicity of catalyst can enhance the catalyst stability due to the fact that basicity is a favorable property for tar decomposition.…”

Section: Introductionmentioning

confidence: 99%

Mechanism and kinetic modeling for steam reforming of toluene on La_0.8Sr_0.2Ni_0.8Fe_0.2O₃ catalyst

Oemar

Hidajat

et al. 2014

AIChE Journal

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Reaction mechanism for steam reforming of toluene is proposed for La0.8Sr0.2Ni0.8Fe0.2O3 perovskite catalyst. The proposed mechanism was derived from various characterization results such as temperature‐programmed desorption (TPD) and temperature‐programmed surface reaction (TPSR) water, TPSR toluene, TPD O2 and in situ DRIFT of toluene decomposition, and steam reforming of toluene. Five kinetic models were developed based on the proposed dual‐site reaction mechanism using Langmuir–Hinshelwood approach. Subsequently, the parameters of the kinetic models were estimated by nonlinear least square regression. A good agreement was obtained between experimental and model predicted results for the rate determining step based on reaction between adsorbed aldehyde and adsorbed oxygen. The adsorbed aldehyde species is produced from the reaction between adsorbed C2H2 or CH2 and adsorbed oxygen while the adsorbed oxygen species can come from the oxygen from water activation, lattice oxygen species, and/or the redox property of some metals such as Fe. This shows that the adsorbed oxygen species plays important role in this reaction. © 2014 American Institute of Chemical Engineers AIChE J 60: 4190–4198, 2014

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Section: Introductionmentioning

confidence: 99%

Mechanism and kinetic modeling for steam reforming of toluene on La_0.8Sr_0.2Ni_0.8Fe_0.2O₃ catalyst

Oemar

Hidajat

et al. 2014

AIChE Journal

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“…A comparison of one-ring and poly-ring hydrocarbons has been published [18]. Furthermore, the conversion of toluene has been investigated [19][20][21]. The typical gaseous products that form during biomass steam gasification are carbon monoxide (CO), hydrogen (H 2 ), methane (CH 4 ), and carbon dioxide (CO 2 ).…”

Section: Introductionmentioning

confidence: 99%

Influence of coated olivine on the conversion of intermediate products from decomposition of biomass tars during gasification

Kuba

Kirnbauer

Hofbauer

2016

Biomass Conv. Bioref.

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Steam gasification of solid biomass in dual fluidized bed systems is a suitable technology for the production of chemicals, fuels for transportation, electricity, and district heating. Interaction between biomass ash and bed material leads to the development of Ca-rich bed particle layers. Furthermore, incomplete decomposition of biomass leads to the formation of tar components; among these are stable intermediate products such as 1H-indene and stable gaseous hydrocarbons such as methane. In this work, the influence of bed particle layers on the conversion of intermediate products such as 1H-indene and methane via steam reforming was investigated by conducting experiments in a lab-scale test rig. Satisfying conversion of 1H-indene into gaseous molecules (e.g., CO, CO 2 , H 2 ) was achieved with used, layered olivine, whereas fresh olivine showed significantly poorer performance. Since steam reforming was connected to the watergas-shift reaction for the tested hydrocarbons, investigations regarding carbon monoxide conversion in the presence of steam were conducted as well. Furthermore, a comparison of the influence of fresh and used bed material concerning the conversion of methane is presented, showing that methane is not affected by the bed material, independent of the presence of particle layers.

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“…6). The CO 2 capture mechanism on Ca-containing solids has been reported in the literature [40]. In the first stage, the pores of the adsorbent are rapidly filled by CO 2 forming a layer of surface CaCO 3 , subsequently CO 2 molecules diffuse from the surface layer into granules in a stage governed by a diffusional regime.…”

Section: Oxidementioning

confidence: 99%

High temperature CO2 capture of hydroxyapatite extracted from tilapia scales

2017

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Hydroxyapatite (HAp) was obtained from tilapia scales by two extraction methods: direct calcination and acid-base treatment. The physicochemical characteristics of the obtained HAps were evaluated by thermogravimetric analysis, X-ray fluorescence, X-ray diffraction, scanning electron microscopy, surface area, infrared spectroscopy, and basicity measurement at 298 K by CO 2 -pulse titration. Furthermore, the CO 2 capture capacity of the solids at high temperature was also determined. Both methods showed the presence of a HAp phase although significant differences in the properties of the solids were found. The HAp obtained by direct calcination, exhibited a lower crystallinity and a greater surface area and basicity than the HAp obtained by the acid-base treatment. These features were correlated with the solid's CO 2 capture capacity. In this work, CO 2 capture capacity values for HAp yielded by calcination ranged from 2.5 to 3.2 mg CO 2 /g captured at 973 K, and for the acid-base treatment-derived HAp, CO 2 capture capacity values between 1.2 to 2.5 mg CO 2 /g were recorded. These results reveal the potential of HAps extracted from tilapia scales as solids with high CO 2 capture capacity, thermal stability, and capture/release cycles reversibility.Keywords: fish scales; tilapia; hydroxyapatite; calcium; CO 2 capture IntroductionMillions of tons of fish scales are discarded and wasted around the world. In Colombia, fish scales are considered worthless, unusable, and are often eliminated as waste. Consequently, the local fish industry generates large amounts of fish waste per year, of which tilapia scales have a considerable share. Ideas have been proposed on how to create value for fish scales and how to use this resource [1 -4]. The surface of fish scales is constituted by numerous high-value organic and inorganic components, such as hydroxyapatite

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Simultaneous catalytic H2 production and CO2 capture in steam reforming of toluene as tar model compound from biomass gasification

Cited by 49 publications

References 50 publications

Mechanism and kinetic modeling for steam reforming of toluene on La_0.8Sr_0.2Ni_0.8Fe_0.2O₃ catalyst

Mechanism and kinetic modeling for steam reforming of toluene on La_0.8Sr_0.2Ni_0.8Fe_0.2O₃ catalyst

Influence of coated olivine on the conversion of intermediate products from decomposition of biomass tars during gasification

High temperature CO2 capture of hydroxyapatite extracted from tilapia scales

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Simultaneous catalytic H2 production and CO2 capture in steam reforming of toluene as tar model compound from biomass gasification

Cited by 49 publications

References 50 publications

Mechanism and kinetic modeling for steam reforming of toluene on La0.8Sr0.2Ni0.8Fe0.2O3 catalyst

Mechanism and kinetic modeling for steam reforming of toluene on La0.8Sr0.2Ni0.8Fe0.2O3 catalyst

Influence of coated olivine on the conversion of intermediate products from decomposition of biomass tars during gasification

High temperature CO2 capture of hydroxyapatite extracted from tilapia scales

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Mechanism and kinetic modeling for steam reforming of toluene on La_0.8Sr_0.2Ni_0.8Fe_0.2O₃ catalyst

Mechanism and kinetic modeling for steam reforming of toluene on La_0.8Sr_0.2Ni_0.8Fe_0.2O₃ catalyst