Falling-film evaporators distribute compatible liquid over heated surfaces under a defined vacuum duty; compare wetting, feed variability and concentration limits with circulation-based alternatives.
Typical process: Distribute compatible feed over heated surfaces; evaporate under the selected vacuum; separate vapour and concentrate; connect condensation, product discharge and cleaning.
Selection inputs: Specify feed solids, viscosity, fouling behaviour, feed variability and utilities. Film wetting and concentration limits belong in the trial basis.
Read this process introductionForced-circulation evaporators repeatedly pump product through a heater and separator; compare recirculation history, discharge duty and actual fouling behaviour with falling-film concentration.
Typical process: Circulate product through the heater and separator; manage the vapour and condensate interfaces; discharge concentrate under the selected circulation and cleaning plan.
Selection inputs: Specify viscosity, suspended solids, fouling history and final concentration. Pump duty and repeated heat exposure differ from a once-through film route.
Read this process introductionCIP systems circulate defined cleaning media through selected closed circuits; compare supply-return interfaces, monitoring and verification while assessing open equipment cleaning separately.
Typical process: Define closed product circuits; connect cleaning supply and return; establish the appropriate sequence, monitoring and verification for each circuit.
Selection inputs: List soils, materials, circuit volumes, return conditions and available services. Open equipment still needs a separate cleaning method.
Read the detailed selection guideVacuum deaerators manage gas removal and liquid discharge for compatible products; compare foam, temperature, sampling methods and the downstream treatment interface during trials.
Typical process: Feed a compatible liquid into the vacuum treatment section; remove released gas; manage foam and product discharge; reconnect the downstream process and cleaning circuit.
Selection inputs: Provide product temperature, viscosity, flow and foaming observations. Define the sampling method and the downstream treatment interface before comparing results.
Read this process introduction