David A. Agar

My research deals with energy and material applications and the feasibility of renewable energy technologies in industry. Areas of activity include pyrolysis of forest-based biomass and industrial by-products, pelleting and energy economics.


Utilisation of Organic Sludge in Metal Industry - OSMet S2

The OSMet S2 Project aims to utilise various pulp & paper mill sludge in metallurgical applications with the goal of reducing fossil fuel dependence and associated emissions. Project partners include Swerea MEFOS AB, SSAB Merox AB, SP Processum, Volvo GTO, Outokumpu Stainless AB, The Royal Institute of Technology (KTH) and Stora Enso.

Valorisation of Organic Fines and Sewage Sludge Using Pyrolysis (OF-PYR)

The project investigates the feasibility of pyrolysis conversion for bio-based industrial feedstock to syngas and biochar production in Ireland. Partners: University of Limerick, The Irish Environmental Protection Agency, Irish Water Ltd. and the Irish Research Centre for Resource Efficiency.

Substance Flow and Transformation in Biorefinery Processes

This project investigates flows and transformation of potentially undesirable substances, heavy metals and persistent organic pollutants for example, in relevant biochemical and thermochemical processes. 

BioHub ( www )

The BioHub Project aims to serve the emerging biorefining industry in Sweden and Finland and to facilitate the transition to bioeconomy in the Botnia-Atlantica area. Methods and business models for forest terminals will be developed to increase the value of the forest-based resources. Partners include Natural Resources Institute Finland (Luke), Biofuel Region and the University of Vaasa.

Mobile Flip  (www)

The Mobile Flip Project aimed at developing and demonstrating mobile processes for the treatment of forest and agricultural based biomass resources into products and intermediates. Key technologies included pelleting, torrefaction, slow pyrolysis and carbonization. The 12 Project partners from five European countries included VTT (Finland), RISE (Sweden) and CEA (France).


PhD, Inorganic Chemistry, Åbo Akademi, Finland

MSc, Applied Physics, University of Jyväskylä, Finland

Publikationer i urval

Agar D , Rudolfsson M, Kalén G, Campargue M, Da Silva Perez D, Larsson SH. A systematic study of ring pellet production of forest and agricultural biomass, Fuel Processing Technology 180; 45-55 (2018).

Agar D , Kwapinska M, Leahy JJ. Pyrolysis of Wastewater Sludge and Composted Organic Fines from Municipal Solid Waste: Laboratory Reactor Characterisation and Product Distribution. Environmental Science and Pollution Research 25; 35874 (2018).

Agar D , A comparative economic analysis of torrefied pellet production based on state-of-the-art pellets. Biomass and Bioenergy 97; 155-161 (2017).

Agar D , DeMartini N, Hupa M. Influence of Elevated Pressure on the Torrefaction of Wood. Energy and Fuels 30 (3), pp. 2127-2136 (2016).

Alakoski E, Jämsén M, Agar D , Tampio E, Wihersaari M. From wood pellets to wood chips - risks of degradation and emissions from the storage of woody biomass - a short review. Renewable and Sustainable Energy Reviews 54; 376-383 (2016).

Agar D , Gil J, Sanchez D, Echeverria I, Wihersaari M. Torrefied versus conventional pellet production - A comparative study on energy and emission balance based on pilot plant data and EU sustainability criteria. Applied Energy 138; 621-630 (2015).


Universitetslektor, biträdande vid Institutionen för skogens biomaterial och teknologi (SBT); BTK
Telefon: 090-786 8772
Skogsmarksgränd 17
901 83 Umeå
Besöksadress: Skogsmarksgränd 17, Umeå