Impacts of different antiscalant dosing rates and their thermal performance in Multi Stage Flash (MSF) distiller in Kuwait

This paper describes and compares the thermal schemes, thermal efficiency and thermal performance ratios of three different antiscalants (scale inhibitors) of 7.2 MIGPD Multi Stage Flash (MSF) distillers which have operated satisfactorily for an extremely long period. The evaluation tests conducted on the Multi Stage Flash (MSF) distillers revealed that all the examined antiscalants were successful in inhibiting alkaline scale formation and improving plant performance at top brine temperature ranging between 105 °C and 110 °C with respective dosing rates of 1.5 and 3.0 ppm.