Process analysis of hydrogen production from biomass gasification in fluidized bed reactor with different separation systems

Marcantonio, Vera; Falco, Marcello De; Capocelli, Mauro; Bocci, Enrico; Colantoni, Andrea; Villarini, Milena

doi:10.1016/j.ijhydene.2019.02.121

Cited by 94 publications

(40 citation statements)

References 83 publications

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“…The decrease of CO 2 production depends on reaction R7 (water-gas shift) that is exothermic, being favored at low temperatures, and for this reason, the higher temperature means higher CO and lower CO 2 production. Similar trends were observed by [5,44].…”

Section: Effect Of Gasification Temperature On Syngas Compositionsupporting

confidence: 84%

“…The stream BIOMASS, representing the hazelnut shell feed, goes firstly in the DECOMP block that is a RYield reactor, used to simulate the decomposition of the unconventional feed into its conventional components (carbon, hydrogen, oxygen, sulfur, nitrogen and ash, by specifying the yield distribution according to the biomass ultimate analysis in Table 1). Considering that the DECOMP block creates N, Cl and S as elemental components, which are known to produce principally HCl, NH 3 and H 2 S, and the results of experimental fractional conversion model are closer to the experimental data with respect to restricted chemical equilibrium, the product out of DECOMP is moved to the RStoic block to simulate the production of H 2 S, HCl and NH 3 by the following reactions [5]:…”

Section: Description Of Aspen Plus Flow-sheetmentioning

confidence: 99%

“…Therefore, the reactions within the reactor (listed in Table 3) are conducted at their QET, rather than at the actual temperature of the gasifier. In order to be more rigorous, a Data Fit of experimental data (about hazelnut or almond shells, since they have very similar characteristics [5], using steam and/or oxygen or air as gasification agent with a gasification temperature from 600 • C to 870 • C and S/B from 0.33 to 1) has been implemented on Aspen Plus (Table 4). In this way, RGibbs gasifier evaluates the chemical equilibrium constant for each reaction at the gasifier temperature, and by that, it provides the equilibrium syngas composition.…”

Section: Heat Of Reaction Reaction Numbermentioning

confidence: 99%

“…Contrary to biological methods, thermo-chemical ones are more viable allowing the treatment of a wide range of feedstock in shorter residence time [3,4]. Among thermo-chemical processes, biomass gasification is one of the most efficacious conversion technologies because of lower investment costs while maintaining the ability for high-rate fuel gas production [5,6]. This process utilizes oxidizing agents (oxygen, air, steam or a mix of them) at high temperature (in the range of 750-1000 • C) to produce a fuel gas, called syngas, mostly rich in hydrogen, carbon monoxide, carbon dioxide, methane and steam along with several unwanted by-products [3].…”

Section: Introductionmentioning

confidence: 99%

“…Non-stoichiometric models are based on minimization of the Gibbs free energy, and they offer the advantage of not considering the chemical reactions. The equilibrium models have been used successfully by many researchers in modelling the gasification process in fluidized-bed gasifiers [5,6,12,19], allowing to evaluate the effect of temperature of reactor, equivalence ratio, steam to biomass ratio and moisture content of feedstock on the gasification process. An upgrade of the non-stoichiometric equilibrium model is the quasi-equilibrium approach, which is a compromise between equilibrium thermodynamic models and experimental ones and does not require specific information on the dimensions, capacity and structure of the reactor.…”

Section: Introductionmentioning

confidence: 99%

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Development of a Chemical Quasi-Equilibrium Model of Biomass Waste Gasification in a Fluidized-Bed Reactor by Using Aspen Plus

2019

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In the delicate context of climate change, biomass gasification has been demonstrated to be a very useful technology to produce power and hydrogen. Nevertheless, in literature, there is a lack of a flexible and fast but accurate model of biomass gasification that can be used with all the combinations of oxidizing agents, taking into account both organic and inorganic contaminants, and able to give results that are more realistic. In order to do that, a model of biomass gasification has been developed using the chemical engineering software Aspen Plus. The developed model is based on the Gibbs free energy minimization applying the restricted quasi-equilibrium approach via Data-Fit regression from experimental data. The simulation results obtained, considering different mixes of gasifying agents, were compared and validated against experimental data reported in literature for the most advanced fluidized bed technology. The maximum discrepancy value obtained for hydrogen, with respect to experimental data, is of 8%, and all the other values reached by the developed simulations, considering both organic and inorganic compounds, are in good agreement with literature data. The gas yield reached by the developed simulation is in the range of 1.1-1.3 Nm 3 /kg. Author Contributions: Conceptualization, E.B.; methodology, V.M., E.B.; software, V.M.; validation, V.M., E.B.; resources, E.B.; data curation, V.M.; writing-original draft preparation, V.M.; writing-review and editing, V.M., E.B. and D.M.; supervision, E.B. and D.M.; project administration, E.B.; funding acquisition, E.B. All authors have read and agreed to the published version of the manuscript.

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Section: Effect Of Gasification Temperature On Syngas Compositionsupporting

confidence: 84%

Section: Description Of Aspen Plus Flow-sheetmentioning

confidence: 99%

Section: Heat Of Reaction Reaction Numbermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Development of a Chemical Quasi-Equilibrium Model of Biomass Waste Gasification in a Fluidized-Bed Reactor by Using Aspen Plus

2019

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Catalytic Biomass Gasification in Supercritical Water and Product Gas Upgrading

Vadarlis,

Angeli,

Lemonidou

et al. 2023

ChemBioEng Reviews

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The gasification of biomass with supercritical water, also known as SCWG, is a sustainable method of hydrogen production. The process produces a mixture of hydrogen, carbon oxides, and hydrocarbons. Upgrading this mixture through steam or dry reforming of hydrocarbons to create synthesis gas and then extra hydrogen is a viable way to increase hydrogen production from biomass. This literature review discusses combining these two processes and recent experimental work on catalytic SCWG of biomass and its model compounds and steam/dry reforming of produced hydrocarbons. It focuses on catalysts used in these processes and their key criteria, such as activity, selectivity towards hydrogen and methane, and ability to inhibit carbon formation and deposition. A new criterion is proposed to evaluate catalyst performance in biomass SCWG and the need for further upgrading via reforming, based on the ratio of hydrogen bound in hydrocarbons to total hydrogen produced during SCWG. The review concludes that most catalysts used in biomass SCWG trap a large proportion of hydrogen in hydrocarbons, necessitating further processing of the product stream.

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Food Waste Gasification to Produce Hydrogen for Proton Exchange Membrane Fuel Cell Applications: Comparison of Fixed‐Bed and Fluidized‐Bed Gasifiers Models

Alouani,

Saifaoui,

Alouani

et al. 2023

Chem Eng & Technol

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The proton exchange membrane fuel cell (PEMFC) has been expected to play a pivotal role in energy corridors within the next few years. The gasification of biomass sources is used to produce hydrogen. Many researchers have simulated the biomass gasification model through Aspen Plus to generate hydrogen. However, they have not been targeting the purification of hydrogen gas which is the product of biomass gasification. Thus, the Aspen gasification models for both the fixed and fluidized‐bed gasifiers integrated with the hydrogen purification system to produce hydrogen for PEMFC applications are developed in this work. Food waste is selected as biomass feedstock. The gasifiers have been modeled on Gibbs free minimization energy. Shift reactors along with the preferential oxidation reactor have been employed to limit the amount of CO in the syngas. The validated models were then employed to estimate the performance of both the fixed‐bed food waste gasifier and fluidized‐bed food waste gasifier in terms of syngas produced and hydrogen obtained after purification.

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Process analysis of hydrogen production from biomass gasification in fluidized bed reactor with different separation systems

Cited by 94 publications

References 83 publications

Development of a Chemical Quasi-Equilibrium Model of Biomass Waste Gasification in a Fluidized-Bed Reactor by Using Aspen Plus

Development of a Chemical Quasi-Equilibrium Model of Biomass Waste Gasification in a Fluidized-Bed Reactor by Using Aspen Plus

Catalytic Biomass Gasification in Supercritical Water and Product Gas Upgrading

Food Waste Gasification to Produce Hydrogen for Proton Exchange Membrane Fuel Cell Applications: Comparison of Fixed‐Bed and Fluidized‐Bed Gasifiers Models

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