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A new way of drying bulk


“From the beginning, we have aimed for large energy savings and avoided pollution to help improve the climate,” says Managing Director Arne Sloth Jensen. “Our ambition is to reduce CO2 emissions in the world, and our technology offers a lot of opportunities to achieve this goal. Now, our focus is on spreading the technology.”

In 1981, Arne Sloth Jensen invented the innovative steam drying technology, which is the key element of the drying systems. He was managing a sugar factory in Denmark, which needed a lot of energy in the drying process.

Within a department of the factory, he developed the technology together with three other engineers and built a prototype of the steamdryer for drying beet pulp in 1985.

In 1998, Mr. Jensen founded EnerDry A/S to sell the technology worldwide. “Today, 30 installations are operating around the globe,” says the Managing Director. “With the equipment, our customers save nearly 200 t of coal per day with our largest installation, saving emissions of 600 t of CO2. In addition, there is no air pollution by dust or bad smell from VOC.”

The company employs highly skilled engineers, who develop the systems according to the customers’ needs. EnerDry works together with a network of workshops in Norway, Sweden, Denmark, Germany and Poland, which are specialized in making the different parts according to EnerDry drawings.

The company also supplies drawings, so the clients can buy some of the components in their own countries. “We give guarantees for the function of the components and offer start-up, engineering and consulting services,” explains Mr. Jensen. “We stay in close contact with our customers. Their feedback helps us to improve our technology.”

What is so special about the technology is that it does not use any energy because the energy is borrowed from high pressure steam and brought back to the production process as steam with lower pressure. It is not only suitable for sugar factories but also for other applications, such as the drying of wood chips, brown coal or other products. The technology can also help generate electricity in different parts of the world, essentially improving power production from wet fuel.

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