In petrochemical refineries, a multitude of measuring
instruments monitor material transport and conversion.
Flow measurement of the overflash volume, which
is an important indicator for well-adjusted and efficient
column operation, presents a special challenge.
In the BP Oil Refinery Emsland in Lingen, a
clamp-on ultrasonic measuring system measures
non-invasively the heavy gasoil slowly flowing back
during crude oil distillation.