7.9 Example: Wet Grinding of Cyanuric Chloride
193
Batch reactor for
grinding process
of cyanuric
chloride
Temperature =
0–2 ◦
C
Higher
temperature
(1) Autocatalytic
decomposition
reaction of
cyanuric
chloride
(1) Failure in the
ice supply
Decomposition of
cyanuric chloride
(1) Ice (prevention) (1) Thermal
runaway and
thermal explosion
(2) Toxicity
hazards
(cyanuric
chloride, HCl)
(2) Accidental
injection of steam
in the reactor
(valve accidentally
opened or
damaged)
(2) Temperature
alarm (prevention)
(2) Release of
hydrochloric acid
(HCl) from the
process
(3) Failure of
temperature
measurement
(3) Depressurization
(mitigation)
(4) Failure of
electricity supply
(4) Rupture disk
activation
(mitigation)
Batch reactor for
grinding process
of cyanuric
chloride
Stirring
No mixing
(poor heat
exchange)
Tendency of
cyanuric
chloride to
agglomerate
(local
temperature and
pH gradient)
Failure of
electricity supply
Decomposition of
cyanuric chloride
Stirrer alarm
(1) Thermal
runaway and
thermal explosion
(2) Release of
hydrochloric acid
(HCl) from the
process