This paper reports a theoretical and experimental study which aims to give a contribution in the development of a phenomenological model of the fate of coal/ash particles which considers the establishment of a particle segregated phase in the near-wall region of the gasifier. Mechanistic understanding of particle-wall interaction patterns in entrained-flow gasifiers has been carried out using the tool of the physical modelling, implemented by rational downscaling of the real system into a lab-scale cold entrained-flow reactor. Hydrodynamics of sticky wall-sticky particle regime has been characterized by partitioning measurements between simulated segregated phases and by visual observation of wall-layer phase.
Physical modelling of entrained-flow slagging coal gasifiers / R., Carbone; R., Solimene; Montagnaro, Fabio; Troiano, Maurizio; Salatino, Piero. - ELETTRONICO. - (2012), pp. VIII2-1-VIII2-6. (Intervento presentato al convegno 35th Meeting of the Italian Section of The Combustion Institute tenutosi a Milan, Italy nel 10-12 Ottobre).
Physical modelling of entrained-flow slagging coal gasifiers
MONTAGNARO, FABIO;TROIANO, MAURIZIO;SALATINO, PIERO
2012
Abstract
This paper reports a theoretical and experimental study which aims to give a contribution in the development of a phenomenological model of the fate of coal/ash particles which considers the establishment of a particle segregated phase in the near-wall region of the gasifier. Mechanistic understanding of particle-wall interaction patterns in entrained-flow gasifiers has been carried out using the tool of the physical modelling, implemented by rational downscaling of the real system into a lab-scale cold entrained-flow reactor. Hydrodynamics of sticky wall-sticky particle regime has been characterized by partitioning measurements between simulated segregated phases and by visual observation of wall-layer phase.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
