Humidity control and drying for biofuel pellet production and storage

The ideal moisture content for biofuel pellets is typically between 6% and 10%. When their moisture content is within this range, this ensures more efficient combustion, better storage stability and maximum energy output.

To maintain this level, we advise that the relative humidity (RH) of the environment during production and storage stays between 30% and 50% RH. High-quality dehumidification systems can help you maintain this climate around your bulk materials, and support moisture removal from your biofuel pellets.

Dehumidifiers extract moisture from the air, preventing high humidity levels in areas where you produce and store biofuel pellets. As well as reducing the amount of water vapour your pellets can absorb, this technology enables you to keep the humidity in your facilities within a safe range, so condensation cannot form.

As a result, the dry air generated prevents moisture degradation and mould growth on your pellets, so they maintain the highest quality standards. These systems also protect the machinery and equipment involved in your manufacturing processes, preserving their functionality and longevity.

As the European leaders in energy and renewables climate control, talk to our experts for bespoke advice on the right dehumidification system for your needs.

Commercial desiccant dehumidifiers and high-strength industrial dryers are well suited to drying pellets, wood chips and similar raw materials.

Desiccant dehumidifiers use highly absorbent materials, such as silica gel, to absorb moisture from the air as it flows through the unit. This makes them especially effective in colder temperatures and able to achieve extremely low humidity levels.

For impartial advice on selecting the right dehumidifier for drying biofuel pellets, talk to our experts.

Yes. Our dehumidification units are used in storage facilities worldwide to prevent biofuel pellets from absorbing moisture. Maintaining low humidity levels in these areas also helps to prevent mould growth, swelling or deterioration, meaning your pellets remain usable for longer.

Yes. In general, dehumidifiers are more energy-efficient than heating solutions for drying biofuel pellets. Our dehumidifiers contain heat recovery systems that save energy during the drying process, allowing you to control the amount of moisture in your facilities at reduced running costs.

Furthermore, heat-based drying is far less effective than dehumidification, as this does not extract moisture from the atmosphere. This means that once your heaters are switched off and temperatures drop, the moisture in the air will form condensation around your biofuel pellets.

When biofuel pellets become too wet, their energy efficiency decreases, and they produce more smoke and emissions when burned in your pellet boilers.

Wet pellets are also susceptible to mould growth and spoilage during storage, reducing their overall quality and lifespan.

No. Some amount of residual moisture is necessary for biofuel pellets to maintain their structural integrity. Therefore, our dehumidifiers are programmable to maintain ideal humidity levels for the best possible product quality, automatically adjusting to changes in temperature and humidity levels.

In addition to using dehumidification units to keep the humidity in your production or storage facilities at a safe level, other steps you can take to prevent your biofuel pellets from being exposed to water include:

• Storing pellets on raised platforms to prevent contact with ground moisture

• Sealing packaging to prevent the ingress of water

• Using enclosed silos to store large quantities of pellets, keeping them safe from exposure

• Applying a moisture-resistant coating (like wax) to the surface of pellets for extra protection

• Ensuring your facilities have good airflow to prevent condensation

We don’t make our humidity control solutions available to purchase online to ensure that every system we design, manufacture and supply fits your exact requirements. By taking a consultative approach with a highly-trained expert, we make sure that you are only recommended equipment that meets your needs – and fulfils these in the most efficient, cost-effective way possible.

Across all of our products, VAT-registered companies can get a quote very quickly by pressing 'I want to buy' and inserting your enquiry and contact details.

This varies on a case-by-case basis. For some standard products, accessories and consumables, we can provide day-to-day delivery. For larger orders or more bespoke commercial dehumidifiers and industrial dryers, there may be a longer lead time.

By reaching out to our experts we can put you in touch with your nearest local supplier so you can receive the products you require in the most timely manner possible.

No. Dantherm Group’s industrial dehumidifiers and drying units are sold only to industry professionals directly from our offices, or via our extensive network of distributors.

With offices, servicing partners and spare parts suppliers distributed across Europe, we can rapidly respond to any request or issue involving your products. You can learn more about our servicing and spare parts services on our website.

Our professionals are also happy to advise on the most effective way to set up and operate your equipment, so you always get the maximum performance and value from your products.