Did you know that over 100 years ago, the concept of using superheated steam for drying was introduced? Despite its many benefits, steam dryers haven’t received the attention they deserve.
In short, to generate superheated steam, you must heat the steam beyond its vaporization point, making it “dry.” This dry steam wants to be wet, therefore it will absorb the moisture from the wet product in the dryer. It acts both as a heat source and a drying medium, evaporating water from the product and producing excess steam. Once the product separates from the steam, the steam recirculates in dhe dryer, reheats to stay superheated, and the process is repeated.
Our Pressurized Superheated Steam Dryer (ExergyPSSD®), invented by Claes Münter, founder of the company, at Chalmers University in Gothenburg in the late 1970s, uses superheated steam in a closed, pressurized system.
While some industries worry about the high temperatures involved in superheated steam, our ExergyPSSD® offers a drying time of just 5-10 seconds, a residence time significantly shorter than in a traditional hot-air dryer, delivering uniform dryness up to 99.9% of dry solids.
The benefits of Superheated steam
Unlike traditional hot air dryers, which often cause uneven drying, poor product quality, nutrient degradation, and oxidation, the ExergyPSSD® improves product quality. For instance, in DDGS drying, our pressurized Superheated Steam Dryer increase the by-pass protein value by protecting protein, increasing gelatinization of starch, improving taste, and achieving 100% sterilization of the DDGS. All of the above leads to improved milk production and weight gain in livestock. In addition to healthier animals, the dryer reduce VOCs like methane and ammonia. The ExergyPSSD® excels in various applications, including biomass, pulp and paper, ethanol, and sludge, offering benefits that traditional dryers cannot match.
In many processes, drying often demands a lot of energy and can be costly. However, our steam dryer stands out with the lowest net energy consumption on the market compared to traditional dryers. In addition, it recycles excess steam from the drying process as an energy, heating, or evaporating source for other processes. Additional benefits of the ExergyPSSD® include:
- No Fire or Explosion risk due to the oxygen-free environment within the dryer
- No emissions to the atmosphere due to a closed-loop design, making it environmentally friendly.
- Small footprint, built on height
- Easy Maintenance and high availability due to few rotating parts
- Easy integration with other processes for energy optimization
Don’t sleep on steam; seize new opportunities with an energy-efficient and environmentally friendly dehydration solution.
Choose a solution that will reduce your carbon footprint, water usage, energy waste, and production cost, all while you increase production safety and reliability and maximize profits.
Contact us for more information!
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