Optimization of bio-oil steam reforming process by thermodynamic analysis

Rodrigues, Caroline Teixeira; Alonso, Christian Gonçalves; Machado, Guilherme Duenhas; Souza, Thiago Leandro de

doi:10.1016/j.ijhydene.2020.07.206

Cited by 16 publications

(2 citation statements)

References 45 publications

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“…However, during the process of biomass pyrolysis and gasification, bio-oil can be obtained, decreasing the utilization efficiency of biomass. Utilization of bio-oil reforming has been proven to be a feasible and efficient method to increase the utilization efficiency of biomass and obtain hydrogen [32][33][34]. The reaction rate and heat source of bio-oil steam reforming are the main factors that limit the technological progress.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic Analysis of Hydrogen Production from Bio-Oil Steam Reforming Utilizing Waste Heat of Steel Slag

et al. 2023

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(1) Background: The discharged temperature of steel slag is up to 1450 °C, representing heat having a high calorific value. (2) Motivation: A novel technology, integrating bio-oil steam reforming with waste heat recovery from steel slag for hydrogen production, is proposed, and it is demonstrated to be an outstanding method via thermodynamic calculation. (3) Methods: The equilibrium productions of bio-oil steam reforming in steel slag under different temperatures and S/C ratios (the mole ratio of steam to carbon) are obtained by the method of minimizing the Gibbs free energy using HSC 6.0. (4) Conclusions: The hydrogen yield increases first and then decreases with the increasing temperature, but it increases with the increasing S/C. Considering equilibrium calculation and actual application, the optimal temperature and S/C are 706 °C and 6, respectively. The hydrogen yield and hydrogen component are 109.13 mol/kg and 70.21%, respectively, and the carbon yield is only 0.08 mol/kg under optimal conditions. Compared with CaO in steel slag, iron oxides have less effect on hydrogen production from bio-oil steam reforming in steel slag. The higher the basicity of steel slag, the higher the obtained hydrogen yield and hydrogen component of bio-oil steam reforming in steel slag. It is demonstrated that appropriately decreasing iron oxides and increasing basicity could promote the hydrogen yield and hydrogen component of bio-oil steam reforming that utilizes steel slag as a heat carrier during the industrial application.

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Section: Introductionmentioning

confidence: 99%

Thermodynamic Analysis of Hydrogen Production from Bio-Oil Steam Reforming Utilizing Waste Heat of Steel Slag

et al. 2023

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“…However, the most common raw materials of hydrogen production are fossil fuel-based resources such as heavy oil, coal, naphtha, and natural gas (Choi et al, 2019;Fu et al, 2019;Omoregbe et al, 2017). The main technologies used to generate hydrogen are methane steam reforming, autothermal reforming, dry reforming, gasification, and pyrolysis, cracking, thermo-chemical water splitting, fermentation, photo fermentation, biophotolysis, microbial electrolysis, and biomass dark fermentation (Cakiryilmaz et al, 2018;Basagiannis et al, 2007;Rodrigues et al, 2020). However, a significant amount of CO2 is released during the production of hydrogen following most of these technologies.…”

Section: Introductionmentioning

confidence: 99%

Alternatif Yakıt Hidrojen Üretiminde Mezogözenekli Alüminosilikat Destekli Katalizörler

SALEH¹,

Ekinci

PEKMEZCİ³

et al. 2021

Konya Journal of Engineering Sciences

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In the present study, Ni-containing mesoporous aluminosilicate (Al2(SiO2)3) supported catalysts, which are resistant to carbon formation, were developed for hydrogen production from acetic acid. Commercial aluminosilicate (Al2(SiO2)3) was used as catalyst support. Furthermore, to improve the catalyst stability, Mg, La, Ce, Ca, Ru metals, and Ni (5% by mass) were incorporated by the wet impregnation method into the catalyst supports' structure. The synthesized catalysts were characterized to define their physical and chemical properties. N2 adsorption-desorption results reveal that the resulting isotherm behavior of all the prepared catalysts is consistent with type IV isotherm with plate-like wall structures. The catalytic activity test of the prepared catalysts was investigated at a reaction temperature of 750 C and a feed molar ratio of 1/2.5 (AA/H2O) in a packed bed continuous reactor system. Activity test results showed that catalyst composition has profound effects on product distribution. Hydrogen-rich syngas was produced over 5Ni-3Ru@Al2(SiO2)3 and 5Ni-3CeO2@Al2(SiO2)3 (about % 44 and % 46, respectively) catalysts. However, the addition of MgO over the 5Ni@Al2(SiO2)3 catalyst strongly influenced the selectivity of hydrogen. Syngas, which contains an equimolar amount of H2, and CO is a quite important feedstock for the Fischer-Tropsch process (about 35% each), was obtained with the 5Ni-3MgO@Al2(SiO2)3 catalyst.

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CFD and Experimental Design Analysis of Methane Reforming in Micro-Channel Reactor of SOFC System Using OpenFOAM: Effect of Operational Parameters on the Hydrogen Yield

Celentano,

Settar,

Chetehouna

2023

Lecture Notes in Mechanical Engineering

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Optimization of bio-oil steam reforming process by thermodynamic analysis

Cited by 16 publications

References 45 publications

Thermodynamic Analysis of Hydrogen Production from Bio-Oil Steam Reforming Utilizing Waste Heat of Steel Slag

Thermodynamic Analysis of Hydrogen Production from Bio-Oil Steam Reforming Utilizing Waste Heat of Steel Slag

Alternatif Yakıt Hidrojen Üretiminde Mezogözenekli Alüminosilikat Destekli Katalizörler

CFD and Experimental Design Analysis of Methane Reforming in Micro-Channel Reactor of SOFC System Using OpenFOAM: Effect of Operational Parameters on the Hydrogen Yield

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