Effect of Heat Transfer Driving Force and Ice Seed Loading on the Production of Ice and Salt from a Dilute Brine Treated Using Eutectic Freeze Crystallization

Eutectic Freeze Crystallization (EFC) is a separation technology that separates solute from solvent by cooling the brine to temperature below its eutectic point, such ice and salt simultaneously crystallize out of solution. Achieving consistent production at high rates has been challenge for EFC. This due heat transfer limitations, which are more severe when EFC applied dilute brines. work investigated effect driving force, ΔTLMTD, seed loading (SL) on brine. A 1.45 L stirred crystallizer was used experiments varying coolant temperatures investigate masses loading. It found that, as ΔTLMTD increased, yield increased. attributed increase in rate directly related. The divided between suspension formed wall (scale layer), with majority total being scale ice. Increasing increased decreased seeds allowed surface area crystallization bulk. most supersaturation be consumed bulk, leaving little wall. reduced propensity formation. reduction layer bulk coolant, allowing suspension.