Oilseeds preparation & pressing

The purpose of preparation is to modify the seed into a shape that is suitable for fast and effective extraction by mechanical pressing or by solvent extraction. Seed preparation involves several steps to break down as much as possible the cell walls of the seed. This is crucial because the oil intended for extraction is located inside the cells.

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
  • Expanding (sometimes), to enhance extraction parameters

Full process

The key to the separation process is proper mechanical and thermal preparation of the material prior to separation of the oils and fats. Desmet masters all technologies of preparation, screw pressing and solvent extraction to bring full solutions to industry, and transform oilseeds into prepared oilseeds.

A growing business trend is to return to pure screw press separation of oils and fats, often referred to as ‘full pressing’. Desmet bases its full pressing technology on the world renown Rosedowns brand of screw presses. Rosedowns, founded in 1777 in Hull, England, has long been a leader in designing and manufacturing world-class screw presses, and being a trusted supplier of the replacement parts needed to maintain yields year-around.

SOYABEANS PREPARATION
(HOT/WARM DEHULLING)

MAIN TECHNOLOGY

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RAPESEED AND SUNFLOWER PREPARATION

MAIN TECHNOLOGY

Download this flowchart

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 and animal fats. This 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 desired final product characteristics and its intended application.

Other oilseeds

Rapeseeds

Rapeseed

Soyabean

Soybeans

Sunflower

Sunflower

Key proprietary equipment

The key proprietary equipment for oilseeds preparation and 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.

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