Skip to main content

Steamdry

STEAMDRY at Valmet’s customer event

STEAMDRY took part in Valmet’s customer event, held on 9–11 June in Jyväskylä, Finland.

The Customer Event is a popular recurring industry networking event organized by Valmet for paper producers. The event brought together industry professionals to exchange insights, discuss current developments, and explore innovative technologies shaping the future of papermaking.

During the event, STEAMDRY was presented by Kalle-Matti Romppainen, Development Manager, Board and Paper Machines Technology Unit at Valmet. Valmet is the work package leader of Work Package 11 – Up-scaling strategy of the developed solution within the STEAMDRY project. The presentation highlighted recent project developments and ongoing work towards more energy-efficient and low-carbon drying technologies for the paper industry.

A key focus of the presentation was the STEAMDRY Pilot Plant, where the VTT SAMPO pilot machine has been transformed into a fully operational Superheated Steam Drying (SSD) line. The pilot facility enables the testing and validation of SSD technology under realistic industrial conditions and provides valuable insights into drying performance, heat recovery opportunities, energy efficiency, and product quality.

The presentation also highlighted STEAMDRY’s work on industrial dryer retrofit concepts. Within the project, three SSD configurations—convective SSD, conductive SSD, and a combined convective-conductive SSD concept—have been evaluated on a representative European packaging board machine. These concepts have been assessed against key performance indicators, including energy savings, investment requirements, payback time, runnability, product quality, and retrofit feasibility.

Particular attention was given to the combined convective-conductive SSD concept, which has emerged as a promising candidate for a first industrial retrofit. By combining high-intensity superheated steam drying with the reuse of existing dryer infrastructure, the concept offers a practical pathway for increasing drying capacity while reducing specific energy consumption and CO₂ emissions.

The event provided an opportunity for the project to reach its target audience and potential future adopters of the technology, and to engage directly in discussions and questions around the practical application of superheated steam drying in industry.

Industrial Accelerator Act: A boost for low carbon, ‘Made in Europe’ process industries

The European Commission’s new Industrial Accelerator Act (IAA) is a clear signal that Europe intends to couple industrial competitiveness with climate ambition. The proposal aims to strengthen Europe’s manufacturing base, reduce dependence on non‑EU suppliers and scale up clean technologies, especially in energy‑intensive sectors such as steel, chemicals, paper and other process industries. By rewarding low‑carbon, “Made in EU” solutions and streamlining permitting for strategic industrial projects, the IAA seeks to accelerate investments that keep value creation, jobs and know‑how in Europe.

For SteamDry, this policy shift directly echoes our core mission: enabling radically more energy‑ and resource‑efficient drying processes for web‑like materials such as paper, board, tissue and nonwovens. Drying is among the most energy‑consuming steps in these value chains; reducing its energy demand and associated emissions is essential if European manufacturers are to stay both competitive and on track with climate targets. By developing and demonstrating superheated steam drying (SSD) as a high‑efficiency alternative to conventional drying, SteamDry offers exactly the kind of transformative process innovation that the Industrial Accelerator Act is designed to support.

Decarbonising a key industrial bottleneck

In paper and board production, drying can account for a major share of total energy use and CO₂ emissions across the line. Traditional drying systems are often constrained by efficiency limits and fossil energy inputs, making it difficult for mills to significantly cut emissions without compromising productivity or incurring very high costs. At the same time, rising energy prices and stricter climate policies are putting pressure on producers to modernise their assets and improve performance.

SteamDry addresses this bottleneck by advancing superheated steam drying technology that can drastically reduce the energy intensity of drying while maintaining or even improving product quality. By using superheated steam instead of hot air, SSD can recover and reuse heat more effectively, enabling substantial energy savings and lower specific CO₂ emissions. This kind of step‑change in process efficiency directly supports the IAA’s objective to prioritise low‑carbon technologies in energy‑intensive industries and to make European plants leaders in clean production.

Supporting ‘Made in Europe’ industrial competitiveness

The Industrial Accelerator Act places strong emphasis on strengthening European production capacity and rewarding solutions that are developed and manufactured in Europe. For process industries such as pulp and paper, this means that technologies which can be deployed in European mills—improving their cost position and emissions profile—are strategically important. Keeping these industries competitive is not only about avoiding carbon leakage; it is also about safeguarding local employment, regional value chains and industrial know‑how.

SteamDry contributes to this goal by focusing on solutions that can be integrated into existing or new European production lines. By targeting high energy savings and reduced operating costs, SSD has the potential to help mills remain economically viable while meeting increasingly stringent climate and sustainability requirements. This alignment between industrial performance, climate action and European value creation mirrors the core logic of the IAA: public policies and private investments should reinforce each other to build a resilient, future‑proof industrial base in the EU.

Enabling faster deployment through innovation and integration

A key challenge for industrial decarbonisation is not only developing new technologies, but also integrating them into complex production systems with minimal disruption and risk. This is where SteamDry’s broader innovation approach becomes particularly relevant. The project does not focus solely on the drying technology itself; it also works on digital tools, process integration strategies and control concepts that help optimise SSD within real‑world industrial environments.

By supporting smarter, more integrated process control, SteamDry makes it easier for manufacturers to plan, deploy and operate advanced drying systems in practice. This is fully consistent with the Industrial Accelerator Act’s intent to accelerate clean‑tech deployment by reducing barriers, clarifying investment signals and promoting technologies that are ready for industrial‑scale application. In this way, SteamDry serves as a concrete example of how Horizon Europe research can feed into the implementation of broader EU industrial and climate policy.

A role model for clean, resilient process industries

The Industrial Accelerator Act sets out a direction: a more resilient, “Made in Europe” industrial base that leads on low‑carbon production rather than following global trends. SteamDry shows what this can look like in practice for process industries that rely heavily on thermal energy. By combining cutting‑edge drying technology with a strong focus on implementation in real industrial contexts, the project helps create a pathway for mills and manufacturers to cut emissions, lower energy use and remain competitive from Europe, for Europe.

As discussions around the Act continue, projects like SteamDry will be crucial in demonstrating that ambitious climate policies and robust industrial performance can reinforce each other. Superheated steam drying is not just a technical upgrade; it is part of a broader shift towards cleaner, smarter and more resilient process industries that embody the spirit of Europe’s new industrial agenda.

World Energy Efficiency Day: How SteamDry cuts the hidden Energy of Industrial Drying

Every year on 5 March, World Energy Efficiency Day reminds us that the cleanest and cheapest energy is the energy we do not need to use. For SteamDry, this is a perfect moment to focus on one of industry’s “blind spots” for energy consumption: the drying of continuous web‑like materials such as paper, nonwovens and wood‑based products.​

What is celebrated on 5 March?

World Energy Efficiency Day has been marked since 1998, following an international meeting on rational energy use held in Austria, where 5 March was proposed as a global awareness date. Since then, it has been used to promote policies, technologies and behaviour changes that allow us to do the same (or more) with less energy, cutting costs and emissions without sacrificing quality of life or industrial competitiveness.

A global challenge: producing more with less energy

Worldwide, electricity demand continues to rise as we electrify transport, industry and digital services. Energy efficiency is the “first fuel” that helps curb this growth: in decarbonisation scenarios, efficiency improvements deliver a major share of the reduction in energy use and emissions, especially in energy‑intensive sectors like pulp and paper, chemicals and steel.

In Europe, the manufacturing of paper and paper products consumes hundreds of petajoules per year and relies heavily on heat for processes such as drying. That makes efficiency in drying a key lever for meeting climate targets while keeping the European industry competitive.​​

Drying: the big hidden consumer

Drying processes for web‑like materials are responsible for a very large share of thermal energy use in several industries. The SteamDry vision roadmap estimates annual drying energy demand in Europe at approximately:​

  • ~400 PJ per year in paper and board.
  • 1.4–2.2 PJ in wetlaid nonwovens.
  • 70–140 PJ in wood materials (panels, veneer, etc.).​

In many paper and board mills, drying alone accounts for more than 60% of total process heat demand. Conventional technologies – steam‑heated cylinder dryers, hot‑air impingement, through‑air (TAD) and infrared – typically use around 1,070–1,800 kWh of heat per tonne of paper in the drying section, often supplied by fossil‑fired boilers or direct gas‑fired air heaters.​

What SteamDry brings to energy efficiency

SteamDry (“Superheated steam drying for sustainable and recyclable web‑like materials”) is a Horizon Europe project (GA 101137906) designed to rethink how paper, nonwovens and certain wood products are dried. Its objectives include:​

  • Developing a high‑efficiency drying technology.
  • Achieving a CO₂‑emission‑free drying process.
  • Piloting superheated steam drying (SSD) for representative products.
  • Implementing advanced (AI‑supported) control systems and digitalisation.
  • Assessing environmental, techno‑economic and business impacts.​

The core is superheated steam drying (SSD), which replaces hot air in the dryer hood with circulating superheated steam in a closed loop. Steam is heated above its boiling point, passes through the dryer and mixes with the vapour coming from the product; part of this steam is then condensed to recover useful high‑temperature heat for other process steps, while the rest is reheated and reused. This allows SteamDry to:​

  • Improve heat transfer and reduce net energy consumption.
  • Minimise stack losses and recover high‑grade heat.
  • Eliminate direct combustion emissions in drying when energy input is electric and low‑carbon.​

How much can be saved?

Modelling work in SteamDry shows that for conductive cylinder dryers, combining SSD with advanced heat recovery, high‑temperature heat pumps and steam compression can reduce thermal energy demand by more than 50% compared with a reference case without heat integration. For impingement and TAD dryers, superheated steam enables optimisation of steam temperature, mass flow and heat recovery to balance efficiency, dryer compactness and integration with the plant’s overall energy system.​

Given that drying in paper and board alone accounts for around 400 PJ per year in Europe, out of roughly 650 PJ used in total for paper and paper products, the system‑level savings potential is very large. Additional savings are possible in nonwovens and wood‑based panels, where drying can represent up to 70% of process energy and specific heat demands between 0.8 and 2.7 MWh per tonne of product.​

A roadmap for the coming decade

The SteamDry roadmap describes a path from 2024 onwards, moving through laboratory, pilot, demo and flagship phases. During the project, partners develop critical elements such as leakage‑free sealing, steam purification, mechanical vapour compression, heat‑integration concepts and advanced control systems, both for rebuilds and new machines. Beyond the current project, the vision foresees larger demonstration lines and the first commercial‑scale retrofits towards the end of this decade.​