Discuss your projectPROSALT EVAPORATION TECHNOLOGIES
Turnkey evaporation.
Engineering, in-house manufacturing and site installation. One responsible team: PROSALT.
A NEW PERSPECTIVE ON THE SAME ENERGY.
Systems that recover heat energy, support water reuse and focus on your product. Designed to find the right balance for every process.
Recover the heat in vapor.
Reuse condensate according to its quality.
Design for the target concentration.
THREE TECHNOLOGIES. ONE APPROACH.
Mechanical compression turns process vapor back into a heat source. An electrically driven way to keep energy within the cycle.
Motive steam entrains part of the process vapor in an ejector. The resulting mixture returns to the heating side.
Hot liquid partially evaporates at lower pressure. Heat and pressure are managed in a single- or multistage system tailored to the process.
Scroll to explore. Or choose a technology.
MVR / ENERGY CYCLE
Single effect · Forced circulation · MVR
Auxiliaries: start-up heat and non-condensable gas removal.
Feed joins the liquid returning from the separator. The circulation pump sends the mixture through the heat exchanger; product is withdrawn through a separate branch.
Scroll or choose a step.
Defined process arrangement, not a final plant design or P&ID. Auxiliary circuits and controls are not detailed. Line crossings without dots are not connections.
A BIG DIFFERENCE IN SMALL DETAILS.
From materials to maintenance access.
Every detail, considered together.
CONCEPT MATERIAL IMAGEOne team considering the entire plant and taking responsibility for your project.
The customer carries out concrete and foundation works to the designs and technical requirements provided by PROSALT. PROSALT takes responsibility for equipment, structural steelwork, electrical systems, automation and site installation.
Project contacts, progress updates and site coordination are planned at the outset. Utility connection points, site preparation and local approval responsibilities are clarified in the proposal.
SIDE BY SIDE
The right choice starts with your process conditions.
| Criterion | MVR | TVR | FLASH |
|---|---|---|---|
| Operating principle | Mechanical vapor compression | Recompression with a steam ejector | Evaporation by pressure reduction |
| Main energy input | Steam and electricity | Motive steam | Feed heat / external heating |
| Selection focus | Electricity price, temperature difference | Steam pressure and cost | Available heat, pressure stages |
| Key equipment | Compressor or fan | Thermocompressor | Flash vessel and vacuum system |
Final selection depends on product analysis, capacity, energy prices and operating conditions. Flash stages may also be combined with other heat recovery methods.
PROCESS ENGINEERING
Product targets, available utilities and solution behaviour are assessed together.
MVR uses mechanical compression; TVR uses motive steam. In multiple-effect evaporation (MEE), vapour from one effect heats the next. Selection considers the available temperature difference, energy prices and annual operating hours.
Evaluated for non-precipitating applications requiring short residence times. Forced circulation is evaluated for crystal-bearing or scaling-prone fluids. In circulating crystallizers, boiling inside the heater can be suppressed so evaporation occurs in the separator.
Target particle-size distribution is considered alongside supersaturation, residence time and crystal breakage. DTB or growth-type crystallizers are evaluated against this target. Solid-liquid separation and residual moisture determine the load on subsequent drying.
Recrystallization aims to separate impurities by dissolving solid salt, purifying the solution and forming crystals again. Evaporation or cooling is selected according to solubility behaviour. Mother-liquor recycle and purge are balanced to control impurity accumulation.
Feed ion analysis and variability; flow, temperature, density and viscosity; target purity, particle size and moisture; steam, electricity and cooling conditions; annual operating hours and site constraints. Mass and energy balances, with sample tests where needed, underpin equipment selection.
This content explains general process principles. PROSALT project scope and performance values are determined from feed data and engineering assessment.
Start with your process dataEXPLORE YOUR PROCESS
Choose your goal first, then continue with the data you know. We can clarify missing information during the technical discussion.
02 / PRELIMINARY MASS BALANCE
Example calculation
Assumes steady state, pure water vapor, complete solute retention, no losses and no crystallization. Percentages are by mass, not volume.
C = F × x₁ / x₂ · V = F − C
F: feed, C: concentrate, V: evaporated water. x₁ and x₂ are initial and target mass percentages of the same component.
This is not a heat balance or equipment capacity guarantee. Target concentration feasibility must be checked against solubility, viscosity and temperature.
03 / TECHNOLOGY SCREENING
This is preliminary screening. Final selection requires product analysis, mass and energy balances, operating hours and energy costs.
Use these inputs to start your technical discussion.
YOUR NEXT CYCLE.
Tell us about your process. Our engineering team will get in touch.
Application, technology and capacity.
Three essentials for the first step.
TECHNICAL DISCUSSION
Share your feed analysis, target capacity and available energy sources. Our team will help define the next step.
YOUR QUESTIONS
No. Electricity and steam prices, operating hours, boiling point elevation and product properties must be assessed together. Technology selection is project-specific.
Chloride content, temperature, pH, corrosion and cleaning conditions determine the choice. Stainless steel grades or special alloys are selected using product analysis and process conditions.
Not always. Zero liquid discharge requires an integrated assessment of pretreatment, evaporation, crystallization and solid–liquid separation.
Feed flow and composition, initial and target concentration, operating hours, steam and electricity conditions and site layout are the key inputs.