Article | Proceedings of The 60th SIMS Conference on Simulation and Modelling SIMS 2019, August 12-16, Västerås, Sweden | Aspen Plus simulation of biomass gasification for different types of biomass Linköping University Electronic Press Conference Proceedings
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Title:
Aspen Plus simulation of biomass gasification for different types of biomass
Author:
Ramesh Timsina: Department of Process Energy and Environmental Technology University of South-Eastern Norway Rajan K. Thapa: Department of Process Energy and Environmental Technology University of South-Eastern Norway Marianne S. Eikeland: Department of Process Energy and Environmental Technology University of South-Eastern Norway
DOI:
https://doi.org/10.3384/ecp20170151
Download:
Full text (pdf)
Year:
2019
Conference:
Proceedings of The 60th SIMS Conference on Simulation and Modelling SIMS 2019, August 12-16, Västerås, Sweden
Issue:
170
Article no.:
023
Pages:
151-157
No. of pages:
7
Publication type:
Abstract and Fulltext
Published:
2020-01-24
ISBN:
978-91-7929-897-5
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


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A steady-state Aspen Plus model was developed for biomass gasification in a fluidized bed reactor. A combination of different Aspen Plus unit operations was used to model the gasification process. The model was used to predict the gasifier performance for different operating conditions like temperature, Steam to Biomass Ratio (STBR) and biomass loadings. Further, the gas compositions were compared for different types of biomass feed. The gasification reactor is based on Gibbs minimization with restricted equilibrium approach. Hydrogen production was around 50% for all the biomasses while CO production varies from 8% (Pig manure) to 24.5% (Olive residue) at 700°C. H2/CO ratio increases with an increase in STBR for all the biomass and the ratio was the highest for the pig manure and lowest for the olive residue. Olive residue, wood residue and miscanthus gave the H2/CO ratio of 1.5-2.1, which are more suitable as a feedstock in Fischer-Tropsch synthesis depending upon the operating temperature, a catalyst used and other operating conditions. For the wood residue, an increase in temperature increases the H2 and CO production whereas CO2 and CH4 concentration decreases and becomes stable after 700°C. H2 concentration increased from 46 % to 54 % and CO concentration decreases from 30% to 20% with an increase in STBR from 0.6 to 1 for the wood residue.

Keywords: Aspen plus, biomass, biomass gasification, H2/CO ratio

Proceedings of The 60th SIMS Conference on Simulation and Modelling SIMS 2019, August 12-16, Västerås, Sweden

Author:
Ramesh Timsina, Rajan K. Thapa, Marianne S. Eikeland
Title:
Aspen Plus simulation of biomass gasification for different types of biomass
DOI:
10.3384/ecp20170151
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Proceedings of The 60th SIMS Conference on Simulation and Modelling SIMS 2019, August 12-16, Västerås, Sweden

Author:
Ramesh Timsina, Rajan K. Thapa, Marianne S. Eikeland
Title:
Aspen Plus simulation of biomass gasification for different types of biomass
DOI:
https://doi.org10.3384/ecp20170151
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