Valmet MVR Evaporators

MVR (Mechanical Vapor Recompression) is a good way to improve the mill’s overall steam economy and condensate segregation. Valmet’s MVR evaporators are optimized for minimum fan power, which lowers the operating cost.

MVR improves overall steam economy

Low operating cost through Valmet's design with minimized fan power

MVR: black liquor pre-evaporation, sulfite spent liquors, BCTMP and mill effluents.

In an MVR Evaporator, a fan or turbine drives the evaporation. The fan creates energy for the evaporation by increasing the steam pressure.

Valmet’s MVR evaporators are designed for low fan power. This lowers the cost of energy and thereby the operating cost for the MVR evaporators.

MVR Evaporators are especially suitable for concentrating liquors with a low boiling point rise. MVR is often used for black liquor pre-evaporation, evaporation of sulfite spent liquor and evaporation of mill effluents. BCTMP mills can often benefit from installing MVR evaporators.

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MVR evaporators at Cenibra

The two MVR pre-evaporators Valmet delivered to Cenibra (Celulose Nipo-Brasileira) in Brazil significantly improved the overall steam economy and condensate segregation at the mill. Capacity: 235 tons/h.

Evaporation Technologies

Tubel Evaporators

Valmet’s well-proven Tubel design has been shown to provide greater availability in high dry solids or scaling applications.

Valmet Tube Evaporator

Our tubular falling film evaporator is well proven and mechanically reliable. It provides a smaller footprint and excellent condensate segregation.

Valmet Vapor Recycling

Valmet’s Vapor Recycling can help save high pressure steam. The innovative vapor recycling concept makes it possible to evaporate to high dry solids using only LP steam. High pressure steam can be saved for other uses in the mill.

Valmet MVR Evaporators

High-performance condensate handling

Valmet Evaporation plants can be designed to produce condensates that can be completely reused in the mill. This greatly reduces the mill’s consumption of fresh water.

Success in evaporation

Strong teamwork brings success to SCA Obbola

SCA’s increased production capacity project at their kraftliner mill in Obbola, Sweden, is nearing completion. Close collaboration and good dialogue between the SCA and Valmet teams have delivered positive results.

The future of the bioindustry

Project Star is one of the largest private investments in Brazil in the last 20 years, and it has made Bracell the largest producer of dissolving pulp in the world. The mill runs without any fossil fuels and can produce up to three million tonnes of kraft pulp per year.

Important milestones reached at the bioproduct mill project in Kemi

The project is progressing according to plan and on schedule. The mill’s start-up is scheduled in the third quarter of 2023.

Project Star: Evaporation and white liquor plant delivered

Valmet concluded on September 9th the delivery of the evaporation and white liquor plants in Project Star, the new Bracell’s dissolving pulp mill, located in Lençóis Paulista, state of São Paulo, Brazil. The delivery includes equipment of high technological level, in terms of technical, energy and environmental performance.

Södra Cell Värö pulp mill - virtual tour of the expansion project

Södra Cell Värö pulp mill is an excellent example of how continuous strategic investments to raise capacity and competitiveness pay off in performance.

Major expansions of the Södra Cell Värö mill

Södra Cell Värö mill is an excellent example of how continuous strategic investment to increase capacity and competitiveness pays off in performance.

Metsä Fibre's Kemi bioproduct mill

Metsä Fibre's new bioproduct mill in Kemi, Finland will have an annual pulp production capacity of 1.5 million tonnes and in addition produce various other bioproducts. The new totally fossil fuel free mill is scheduled to start-up in the third quarter 2023.

Final phase of works in Bracell’s Project Star starting

Valmet’s delivery to Bracell's new mill includes an evaporation plant and a white liquor plant. Around 500 special parts were transported in six months for the Lençóis Paulista mill.

Our expertise is at your service

Valmet’s focus is to bring your performance forward. We work to ensure that you get the most from your evaporation plant. To get in touch with us, use the link below, or get in touch with your local Valmet office.

Valmet MVR Evaporators

MVR evaporators at Cenibra

Valmet Evaporation Brochure

Valmet service for evaporation plants

Evaporation Technologies

Success in evaporation

Our expertise is at your service

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