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Featured researches published by Ilkka Hannula.


Bioresource Technology | 2010

A semi-empirical model for pressurised air-blown fluidised-bed gasification of biomass

Ilkka Hannula; Esa Kurkela

A process model for pressurised fluidized-bed gasification of biomass was developed using Aspen Plus simulation software. Eight main blocks were used to model the fluidized-bed gasifier, complemented with FORTRAN subroutines nested in the programme to simulate hydrocarbon and NH(3) formation as well as carbon conversion. The model was validated with experimental data derived from a PDU-scale test rig operated with various types of biomass. The model was shown to be suitable for simulating the gasification of pine sawdust, pine and eucalyptus chips as well as forest residues, but not for pine bark or wheat straw.


Biomass & Bioenergy | 2012

A parametric modelling study for pressurised steam/O2-blown fluidised-bed gasification of wood with catalytic reforming

Ilkka Hannula; Esa Kurkela


Biomass & Bioenergy | 2015

Co-production of synthetic fuels and district heat from biomass residues, carbon dioxide and electricity: Performance and cost analysis

Ilkka Hannula


Fuel | 2014

Modelling super-equilibrium in biomass gasification with the constrained Gibbs energy method

Petteri Kangas; Ilkka Hannula; Pertti Koukkari; Mikko Hupa


Biomass Conversion and Biorefinery | 2014

Clean syngas from biomass—process development and concept assessment

Pekka Simell; Ilkka Hannula; Sanna Tuomi; Matti Nieminen; Esa Kurkela; Ilkka Hiltunen; Noora Kaisalo; Johanna Kihlman


Energy | 2016

Hydrogen enhancement potential of synthetic biofuels manufacture in the European context: A techno-economic assessment

Ilkka Hannula


Biomass Conversion and Biorefinery | 2014

Light olefins and transport fuels from biomass residues via synthetic methanol: performance and cost analysis

Ilkka Hannula; Vesa Arpiainen


Fuel | 2015

Reforming solutions for biomass-derived gasification gas – Experimental results and concept assessment

Noora Kaisalo; Johanna Kihlman; Ilkka Hannula; Pekka Simell


Applied Energy | 2017

GHG emission balances and prospects of hydrogen enhanced synthetic biofuels from solid biomass in the European context

Kati Koponen; Ilkka Hannula


Archive | 2015

Synthetic fuels and light olefins from biomass residues, carbon dioxide and electricity: Performance and cost analysis

Ilkka Hannula

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Esa Kurkela

VTT Technical Research Centre of Finland

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Pekka Simell

VTT Technical Research Centre of Finland

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Johanna Kihlman

VTT Technical Research Centre of Finland

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Noora Kaisalo

VTT Technical Research Centre of Finland

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Ilkka Hiltunen

VTT Technical Research Centre of Finland

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Kati Koponen

VTT Technical Research Centre of Finland

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Matti Nieminen

VTT Technical Research Centre of Finland

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Matti Reinikainen

VTT Technical Research Centre of Finland

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Mikko Hupa

Åbo Akademi University

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Pertti Koukkari

VTT Technical Research Centre of Finland

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