Effect of fluidizing particle size on electrostatic charge generation and reactor wall fouling in gas–solid fluidized beds

Computational and experimental study of electrostatics in gas–solid polymerization fluidized beds

“…Electrostatic charge generation is known to affect the bubble dynamics such as size, shape and also particle elutriation rates (Rokkam et al, 2010). With charge accumulation, process upsets such as defluidization can occur (Hendrickson, 2006;Rokkam et al, 2009;Moughrabiah et al, 2012;Sowinski et al, 2012). Understanding the dynamics of the bed aids in the design and process optimization of such reactors.…”

Simultaneous measurements of particle charge density and bubble properties in gas-solid fluidized beds by dual-tip electrostatic probes

“…Moreover, charge generation or dissipation during particle sampling may affect the measurement accuracy, and the Faraday cup is an open system susceptible to variations in environmental factors (Wong et al, in press). Despite this, the average charge density on bed particles, particles that adhered to the column wall and the particles that were entrained from the column were quantified by a Faraday cup fluidized column equipped with two separately Faraday cups at the top and bottom of the bed (Sowinski et al, 2010(Sowinski et al, , 2012.…”

Advanced characterization of particles triboelectrically charged by a two-stage system with vibrations and external electric fields

“…As a result, the electrostatic phenomena that occur with solid particles are significant as the specific surface area increases. For example, electrostatic forces acting on charged particles affect powder flowability [3][4][5][6][7] and segregation [8]. In addition, excessively charged particles cause an electrostatic discharge, which can pose the risk of fire and explosion hazards [9].…”