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Biomass and Co-firing

Following a major research and testing programme into all aspects of biomass combustion, RJM has developed and is now marketing its own range of burners specifically configured for biomass and co-firing applications.

As a result, RJM is increasingly seen by the sector as the “go to” consultant for generators seeking to evaluate their options in terms of migration to co-firing or full plant conversion to biomass combustion.

RJM biiomass burner firing wood

RJM's own biomass burner firing wood on a large utility furnace in the UK

RJM’s expertise in the biomass sector has brought together in-house engineers working in the UK and the USA together with research teams at Brigham Young University (USA) and Aalborg University (Denmark).

As part of the R&D process, RJM engineers designed and manufactured a scaled-down RJM biomass burner that was tested extensively on a range of biomass fuels at different sizes and velocities on a special rig, in controlled conditions. Combustion data recorded during these tests has now been incorporated into RJM's own CFD biomass model - one of the most sophisticated biomass combustion modelling software programmes in the industry - to further increase predictive performance at customer sites.

Working with a number of global power generators, RJM is today applying this expertise to help them evaluate the opportunities presented by biomass, backed up by a product offer that ranges from modifications to existing burners to a full refit of new burners, fully configured for biomass combustion or co-firing.

Recent biomass projects include:

  • A major UK utility installing RJM-designed and manufactured biomass burners on a large combustion plant.
  • Another major UK utility seeking to reduce emissions through the addition of biomass matter to its fuel diet to ensure it remains IED-compliant.


An example of RJM's own Ultra-Low NOX multi-fuel nozzle in biomass-firing mode.

Nozzle in biomass firing mode

This specialist technology is now being developed and patented to enable plants to quickly change between biomass and coal-firing, without the need for a lengthy shutdown.