Electrostatic charging of particles in gas-solid fluidized beds often
results in operational complications in commercial processes. This paper
provides a comprehensive review of the advances from the last decade in
three key areas, namely the fundamental understanding of triboelectric
charging, methods to measure particle charge, and experiments to
elucidate particle charging processes in fluidized beds. This review
underscores the need for better understanding the mechanisms of
triboelectric charging in granular systems, effective online charge
monitoring techniques, and experiments under industrially relevant
conditions to better comprehend the problems in commercial reactors that
can enable strategies to mitigate charging.