Oilseeds preparation & pressing

The purpose of seed preparation is to modify the seed into a form that facilitates fast and efficient oil extraction through mechanical pressing and solvent extraction. The process involves multiple steps designed to break down the seed’s cell walls, thus releasing the oil and optimising the oil yield from the seed.

Presses

How does it work?

Depending on the seed type or quality, the following processes are necessary for optimal extraction and minimal overall operational expenses (OPEX):

  • Seed conditioning, to adjust the moisture and temperature for proper downstream processing
  • Cracking, to reduce the particle size of the seeds
  • Seed dehulling, to increase the protein content of the de-oiled meal
  • Cooking, to reduce the viscosity of the oil and adjust the moisture content (when softseed are processing)
  • Flaking, to rupture the cell structure of the broken seeds
  • Pre-pressing, to recover a high proportion of the oil in an energy-efficient way
  • Expanding (sometimes), to enhance extraction parameters

Full process

The key to the separation process is the proper mechanical and thermal preparation of the material before the separation of the oils. Desmet excels in all aspects of preparation, pre-pressing and solvent extraction to bring complete solutions to the oilseed industry.

Desmet’s pre-pressing technology is built on the expertise of the renowned Rosedowns brand, known for its world-class screw presses. Founded in 1777 in Kingston Upon Hull, England, Rosedowns is a global leader in the design and manufacture of high-quality screw presses and a trusted provider of replacement parts to ensure optimal yields year-round.

SOYABEANS PREPARATION
(HOT/WARM DEHULLING)

MAIN TECHNOLOGY

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RAPESEED AND SUNFLOWER PREPARATION

MAIN TECHNOLOGY

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Advantages

Our method for extracting oils and fats after seed preparation, whether through pressing or solvent extraction, offers numerous advantages.

OPEX

Our oilseeds preparation and pressing process minimizes overall operational expenses.

Downstream

The full process is specially developed to optimize performance in the downstream process.

High protein

With our process we address new market trends and applications with high protein concentrate.

Raw materials

Desmet is a world leader in separation of oils and fats from oilseeds . Separation can take place by mechanical pressure in a screw press, by solvent extraction or by a combination of screw press plus solvent extraction. The specific process depends on the raw material, the desired final product characteristics and its intended application.

Other

Rapeseed

Rapeseed

Soybeans

Soybeans

Sunflower

Sunflower

Key proprietary equipment

The key proprietary equipment for oilseeds preparation and pre-pressing includes conditioners, cookers, and screw presses. These advanced machines ensure optimal oil extraction and processing efficiency, tailored to meet specific product requirements and application needs, ensuring high-quality output.

Conditioners

Conditioners

Our seed conditioning equipment is designed to optimize CAPEX and OPEX, delivering reliable performance under the most severe conditions.

Screw presses

Sterling Series presses

The innovative design reflects years of RoseDowns' industry expertise, with the Sterling Series offering exceptional pre-press performance across various capacities to be throughput.

Desmet Equipment Cooker

Rotary cookers

The equipment is designed to cook and condition oilseeds before mechanical pressing or flaking, sterilizing them while improving plasticity, reducing oil viscosity, and clotting proteins

Our services

With a focus on cutting-edge technology, high-quality components, and comprehensive on-site support, our service teams ensure optimized plant performance and minimized operational disruptions.

Plant automation

Enhance efficiency and control with our plant automation solutions, ensuring seamless integration and optimal performance for your operations.

Replacement parts

Ensure reliability and longevity with our high-quality replacement parts, designed to maintain and enhance your plant's productivity.

Site services

Maximize uptime and operational efficiency with our on-site services, gaining expert support and maintenance tailored to your needs.

R&D and Innovation

Enhance processes and technologies to address and anticipate market challenges and trends, for more quality output and performance.

Talk to our experts

Looking to invest in a better future? As an experienced and innovation-driven plant designer, we can deliver the technologies for you to create quality food, feed and biofuel. Our teams of experts are happy to help you with any question.

Contact us