Bioethanol production via herbaceous and agricultural biomass gasification integrated with syngas fermentation
Journal article, 2021

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.


Bioethanol production


Syngas fermen-tation

Herbaceous and agricultural biomass


Sahar Safarianbana

University of Iceland

Chalmers, Technology Management and Economics, Environmental Systems Analysis

Runar Unnthorsson

University of Iceland

Christiaan Richter

University of Iceland


23115637 (eISSN)

Vol. 7 3 139

Driving Forces

Sustainable development

Subject Categories

Energy Engineering

Chemical Process Engineering


Areas of Advance




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