Performance analysis of power generation by wood and woody biomass gasification in a downdraft gasifier

Safarian, Sahar; Unnþórsson, Rúnar; Richter, Christiaan

doi:10.11591/ijape.v10.i1.pp80-88

Cited by 10 publications

(7 citation statements)

References 56 publications

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“…The established model relied on H&AB gasification linked with syngas fermentation and product recovery units for bioethanol production. The Penge Robinson and Boston-Mathias alpha functions have been used for state equations to compute the physical properties of the conventional materials in the system [25,26]. The NRTL model was also considered for the thermodynamic package of phase equilibrium among various components in a mixture containing a water-ethanol azeotrope [17].…”

Section: Methodsmentioning

confidence: 99%

Bioethanol Production via Herbaceous and Agricultural Biomass Gasification Integrated with Syngas Fermentation

2021

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In this paper, a simulation model based on the non-stoichiometric equilibrium method via ASPEN Plus was established to analyze the gasification performance of 20 herbaceous and agricultural biomasses (H&ABs) linked with syngas fermentation and product purification units for ethanol production. The established simulation model does not consider the gasification system as a black box; it focuses the important processes in gasification such as drying, pyrolysis, gasification, and connection with bioethanol production plants. The results for the 20 H&AB options suggest that the specific mass flow rate of bioethanol from 1 kg of biomass input to the unit is in the range of 99–250 g/kg, and between them, the system fed by hazelnut shell biomass remarkably outranked other alternatives by 241 g/kg production due to the high beneficial results gained from the performance analysis. Additionally, a sensitivity analysis was performed by changing operating conditions such as gasification temperature and air-to-fuel ratio. The modeling results are given and discussed. The established model could be a useful approach to evaluate the impacts of a huge numbers of biomasses and operating parameters on bioethanol output.

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Section: Methodsmentioning

confidence: 99%

Bioethanol Production via Herbaceous and Agricultural Biomass Gasification Integrated with Syngas Fermentation

2021

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“…Then the production of both syngas and biochar are reduced. Therefore, it is important to find the proper span of ER for each kind of biomass gasification (Safarian et al, 2021c).…”

Section: Gasificationmentioning

confidence: 99%

Performance analysis of sustainable technologies for biochar production: A comprehensive review

Safarian

2023

Energy Reports

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“…The program solves the governing equations by employing a sequential modular technique. This makes model development and model updating straightforward, because different parts of a complex process system can be evaluated as single modules before integration [28,29].…”

Section: Approaches For Modeling Of Pyrolysis and Simulation In Aspen...mentioning

confidence: 99%

Development and Comparison of Thermodynamic Equilibrium and Kinetic Approaches for Biomass Pyrolysis Modeling

2022

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Biomass pyrolysis is considered as a thermochemical conversion system that is performed under oxygen-depleted conditions. A large body of literature exists in which thermodynamic equilibrium (TE) and kinetic approaches have been applied to predict pyrolysis products. However, the reliability, accuracy and predictive power of both modeling approaches is an area of concern. To address these concerns, in this paper, two new simulation models based on the TE and kinetic approaches are developed using Aspen Plus, to analyze the performance of each approach. Subsequently, the results of two models are compared with modeling and experimental results available in the literature. The comparison shows that, on the one hand, the performance of the TE approach is not satisfactory and cannot be used as an effective way for pyrolysis modeling. On the other hand, the results generated by the new model based on the kinetic approach suggests that this approach is suitable for modeling biomass pyrolysis processes. Calculation of the root mean square error (RMS), to quantify the deviation of the model results from the experiment results, confirms that this kinetic model presents superior agreement with experimental data in comparison with other kinetic models in the literature. The acquired RMS for the developed kinetic method in this paper varies within the span of 1.2 to 3.2 depending on temperature (400–600 °C) and various feedstocks (pine spruce sawdust, bagasse, wood bark, beech wood and paddy straw).

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Performance analysis of power generation by wood and woody biomass gasification in a downdraft gasifier

Cited by 10 publications

References 56 publications

Bioethanol Production via Herbaceous and Agricultural Biomass Gasification Integrated with Syngas Fermentation

Bioethanol Production via Herbaceous and Agricultural Biomass Gasification Integrated with Syngas Fermentation

Performance analysis of sustainable technologies for biochar production: A comprehensive review

Development and Comparison of Thermodynamic Equilibrium and Kinetic Approaches for Biomass Pyrolysis Modeling

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