### High Pressure Solids Feeder

J.M. Craven, J. Swithenbank & V.N. Sharifi
The cause of process downtime in biomass combustion and gasification plants is more often than not rooted with the feeding and handling systems. Where gasification at elevated pressure is concerned, problems with feeding are exacerbated due to the requirement of feeding a solid fuel across a pressure boundary while maintaining pressure. Further to this, current feeding systems, namely lock hoppers, are grossly inefficient at performing this task and decrease the overall efficiency of the process...