Pre-FEED and FEED studies

Key Challenges

To support the world-first conversion of a front wall-fired PF coal plant to fire a waste-derived energy pellet consisting of 50% biogenic material and 50% plastic not suitable for recycling.

RJM Solution

Following an initial study that rejected a conversion to 100% biomass fuel as uneconomic, RJM carried out a pre-FEED study and a Detailed Front End Engineering Design (FEED) study to arrive at an appropriately-modified firing system that delivers a stable flame with the desired set of combustion characteristics.

Results

After various complex tests and other pieces of work, RJM achieved a stable flame in medium-scale testing which proved that stable combustion of the 100% waste-derived fuel pellet is possible. These results also correlated with the CFD modelling carried out by RJM, confirming the effectiveness of RJM’s CFD capabilities, even when working with a totally new fuel with its own distinct combustion characteristics.