Thomas Ekvall

Doktorand at Chalmers, Space, Earth and Environment, Energy Technology

Thomas Ekvall works with chemistry related to co-combustion of coal and biomass in air and oxy-fuel combustion. The focus is on the alkali related chemistry and how it is affected by the change in flue gas composition going from air to oxy-fuel combustion. The chemistry is studied performing both detailed modelling work and experiments. The experimental part is carried out using the Chalmers 100 kW combustion unit. Thomas also teaches in the course Heat and power systems engineering as part of the Sustainable energy systems master program.

Source: chalmers.se

Projects

2012–2016

Co-firing biomass and coal in oxy-fuel combustion – investigating the effects on high-temperature corrosion

Klas Andersson Energy Technology
Thomas Ekvall Energy Technology
Henrik Thunman Energy Technology
Filip Johnsson Energy Technology
Fredrik Normann Energy Technology
Swedish Research Council (VR)

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Publications

2017

K–Cl–S chemistry in air and oxy-combustion atmospheres

Thomas Ekvall, Klas Andersson, Tomas Leffler et al
Proceedings of the Combustion Institute. Vol. 36 (3), p. 4011-4018
Scientific journal article - peer reviewed
2016

THE INFLUENCE OF KCl AND SO2 ON CO OXIDATION AND NOX FORMATION

Thomas Ekvall,
IEA Clean Coal Center - Cofiring workshop
Conference poster
2016

The use of waste fractions for co-combustion in an aluminium recovery smelter

Thomas Ekvall, Pascal Scherz, Henrik Jilvero et al
IMPACTS OF FUEL QUALITY ON POWER PRODUCTION
Conference paper - non peer reviewed
2016

Interactions between SO2 and KCl -A comparison between air and oxy-fuel combustion

Thomas Ekvall, Klas Andersson,
IMPACTS OF FUEL QUALITY ON POWER PRODUCTION
Conference paper - non peer reviewed
2015

Alkali sulphation in flames

Thomas Ekvall,
5th Meeting of the IEAGHG International Oxyfuel Combustion Research Network
Conference paper - non peer reviewed
2014

In-flame reduction of NOx in oxy-propane combustion at high inlet oxygen concentrations: the importance of soot-NOx interactions

Giovanni Nizzola, Thomas Ekvall, Fredrik Normann et al
Proceedings of the 38th International Technical Conference on Clean Coal & Fuel Systems, June 1-5 2014, Clearwater, Florida, USA.
Conference paper - non peer reviewed
2014

High-Temperature Corrosion Chemistry in Oxy-Fuel Combustion

Thomas Ekvall,
Licentiate thesis
2014

CO-KCl-SO2 interactions in an 80 kW propane-fired flame

Thomas Ekvall, Klas Andersson, Filip Johnsson et al
the proceedings of the Impacts of Fuel Quality on Power production conference, 2014, p. 13
Conference paper - non peer reviewed
2014

Modeling the Alkali Sulfation Chemistry of Biomass and Coal Co-firing in Oxy-fuel Atmospheres

Thomas Ekvall, Fredrik Normann, Klas Andersson et al
Energy & Fuels. Vol. 28 (5), p. 3486-3494
Scientific journal article - peer reviewed
2013

Sulphation of KCl in Oxy-Fuel Combustion

Thomas Ekvall,
(IEAGHG) Third oxyfuel conference(OCC3), Ponferada Spain
Conference poster
2013

Sulphation of potassium chloride in air and oxy-fuel combustion

Thomas Ekvall, Fredrik Normann, Klas Andersson et al
The Proceedings of the 38th International Technical Conference on Clean Coal & Fuel Systems, June 2-6 2013, Clearwater, Florida, USA
Conference paper - non peer reviewed
2011

Distribution of bed material in a Horizontal Circulating Fluidised Bed boiler

Thomas Ekvall, Robin Magnusson,
Master's Thesis
2011

Using Low-Cost Iron-Based Materials as Oxygen Carriers for Chemical Looping Combustion

Erik Jerndal, Henrik Leion, Louise Axelsson et al
Oil & Gas Science and Technology – Rev. IFP Energies nouvelles. Vol. 66 (2), p. 235-248
Scientific journal article - peer reviewed