Particle removal in condensator

In biomass plants flue gas condensation inevitably results in particles which accumulate in the condensate water. When the condensate has a high content of particles, the heat exchangers and nozzles tend to plug up and pumps and other components face reduced life time. Also, the excess condensate must be cleaned before it is discharged into the local sewer system. 

Dall Energy has developed and patented a system where the condensate is cleaned more effectively than normal. In the Dall Energy system most of the particles are removed by the quench prior to the flue gas condensator. The quench water, which contains the particles, is used for e.g. ash moisturising or temperature control of the furnace. Hereby the particles are removed from the high-concentration source and particle reinjection into the flue gas condenser is prevented.