Article | Proceedings of The 60th SIMS Conference on Simulation and Modelling SIMS 2019, August 12-16, Västerås, Sweden | Study of agglomeration in fluidized bed gasification of biomass using CPFD simulations Linköping University Electronic Press Conference Proceedings
Göm menyn

Title:
Study of agglomeration in fluidized bed gasification of biomass using CPFD simulations
Author:
Nora C. I. S. Furuvik: Department of Process, Energy and Environmental Technology, University of South-Eastern Norway, Norway Rajan Jaiswal: Department of Process, Energy and Environmental Technology, University of South-Eastern Norway, Norway Rajan K. Thapa: Department of Process, Energy and Environmental Technology, University of South-Eastern Norway, Norway Britt M. E. Moldestad: Department of Process, Energy and Environmental Technology, University of South-Eastern Norway, Norway
DOI:
https://doi.org/10.3384/ecp20170176
Download:
Full text (pdf)
Year:
2020
Conference:
Proceedings of The 60th SIMS Conference on Simulation and Modelling SIMS 2019, August 12-16, Västerås, Sweden
Issue:
170
Article no.:
027
Pages:
176-181
No. of pages:
6
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


Export in BibTex, RIS or text

Fluidized beds have been widely applied for the gasification of biomass. However, at high temperatures ash melting and subsequently bed agglomeration may occur. When biomass is used for thermal conversion processes, inorganic alkali components present in the biomass fuels can be responsible for major problems. Understanding the ash melting and agglomeration in various gasification temperatures is crucial to optimize the design and operation conditions of a fluidized bed gasifier. This study focuses on the ash melting and the agglomeration process in a bubbling fluidized bed biomass gasification reactor. Using standard techniques, ash-melting analyses were performed to determine the initial agglomeration temperature in laboratory prepared ash samples from woodchips from Austria. Computational Particle Fluid Dynamic (CPFD) simulations were carried out using the commercial CPFD software package Barracuda Virtual Reactor (VR). The results show that the fluid dynamics gives important indications of unwanted agglomeration processes in a biomass gasification in a bubbling fluidized bed.

Keywords: bubbling fluidized bed, biomass gasification, agglomeration, CPFD simulations

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

Author:
Nora C. I. S. Furuvik, Rajan Jaiswal, Rajan K. Thapa, Britt M. E. Moldestad
Title:
Study of agglomeration in fluidized bed gasification of biomass using CPFD simulations
DOI:
10.3384/ecp20170176
References:

A.B. Khadilkar, P.L. Rozelle, and S.V. Pisupati. Investigation of fluidized bed agglomerate growth process using simulations and SEM-EDX characterization of laboratory-generated agglomerates. Chemical Engineering Science, 184: 172-185, 2018.

A. Van der Drift. Conversion of Biomass, prediction and solution methods for ash agglomeration and related problems. Final Report, ECN-C-99.090, 1999.

BISYPLAN. Web-based handbook, 2012. Available from: http://bisyplan.bioenarea.eu/ash_appendix.html. 02.06.2019.

C.K. Jayarathna, B.M.E. Moldestad, and L.A. Tokheim. Validation of results from Barracuda® CFD modelling to predict minimum fluidization velocity and pressure drop of Geldart A particles. Proceedings for the 58th SIMS conference, 2017.

J. Chladek, C.K. Jayarathna, B.M.E. Moldestad, and L.A. Tokheim. Fluidized bed classification of particles of different sixe and density. Chemical Engineering Science, 177: 155–162, 2018.

L. Wang, C.L. Weller, D.D. Jones, and M.A. Hanna. Contemporary issues in thermal gasification of biomass and its application to electricity and fuel production. Biomass and Bioenergy, 32: 573-581, 2008.

M. Bartles, W. Lin, J.  Nijenhuis, F. Kapteijn, and R. Ommen. Agglomeration in fluidized beds at high temperatures: Mechanisms, detection and prevention. Progress in Energy and Combustion Science, 34: 633-666, 2008.

N. Dragutinovic, B. Nakomcic-Smaragdakis, and Z. Cepic. Comparison of ash melting behavior of crop residues and woody biofuels with recommended measures. In The 8th PSU-UNS International Conference on Engineering and Technology (ICET-2017), Novi Saf, Serbia, June 8-10, 2017.

N.C.I.S. Furuvik, R. Jaiswal, and B.M.E. Moldestad. Flow behavior in an agglomerated fluidized bed gasifier. International Journal for Energy and Environment, 10(2): 55-64, 2019.

N.C.I.S. Furuvik, R. Jaiswal, R.K. Thapa, and B.M.E. Moldestad. CPFD model for prediction of flow behavior in an agglomerated fluidized bed gasifier. International Journal for Energy Production and Management, 4(2):105-114, 2019.

P. Basu. Biomass Gasificaion, Prolysis and Torrefaction, Second Edition. Academic Press Inc., UK, 2013.

R.K. Thapa and B.M. Halvorsen. Study of Flow Behavior in Bubbling Fluidized Bed Biomass Gasification Reactor using CFD simulation. The 14th International Conference on Fluidization - From Fundamentals to Products, Eds, ECI Symposium Series, 2013.

R.K. Thapa, C. Pfeifer, and B.M. Halvorsen. Scaling of biomass gasification reactor using CFD simulations. In International conference on Polygeneration strategies (IPCS), Vienna, Austria, June 3-5, 2013.

S.K. Badholiya and A. Kothari. A review on ash agglomeration phenomenon in fluidized bed combustion boiler. International Journal of Scientific Research Engineering & Technology (IJSRET), 5(11): 533-541, 2016

S.K Badholiya, S.K. Pradhan, and A. Kothari. Investigations on ash agglomeration in CFBC boiler using computational fluid dynamics. International Journal of Mechanical Engineering and Technology (IJMET), 9(7): 1464-1476, 2018.

S.V. Vassilev, C.G. Vassilev, Y. Song, W. Li, and J. Feng. Ash contents and ash-forming elements of biomass and their significance for solid biofuel combustion. Fuel, 208: 377-409, 2017.

S. Visser, S. van Lith, and J. Kiel J. Biomass Ash – Bed Material Interactions Leading to Agglomeration in FBC. Journal of Energy Resources Technology, 2008.

World Bioenergy Association. WBA Global Bioenergy Statistics, 2017.

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

Author:
Nora C. I. S. Furuvik, Rajan Jaiswal, Rajan K. Thapa, Britt M. E. Moldestad
Title:
Study of agglomeration in fluidized bed gasification of biomass using CPFD simulations
DOI:
https://doi.org10.3384/ecp20170176
Note: the following are taken directly from CrossRef
Citations:
No citations available at the moment


Responsible for this page: Peter Berkesand
Last updated: 2019-11-06