Product Details

QIE Group supplies soybean oil solvent extraction equipment for industrial oil processing plants. The system extracts residual oil from prepared soybean flakes or expanded material, then separates the oil and solvent for recovery and reuse. Equipment configuration is tailored to processing capacity, soybean preparation, meal quality requirements, and project conditions.

Main Equipment and Functions

Equipment	Main Function
Solvent extractor	Uses solvent, commonly hexane, to extract oil from prepared soybean material
Miscella evaporation and stripping system	Separates solvent from the extracted oil
Wet meal desolventizing system	Removes solvent from soybean meal
Solvent recovery system	Recovers solvent from process vapors for reuse
Condensation and exhaust recovery system	Supports solvent recovery and emission control

The complete system can be integrated with soybean pretreatment equipment and downstream crude oil refining equipment according to project requirements. For projects requiring a complete processing line, explore our soybean oil production line for integrated equipment configurations covering different processing stages.

Low-Temperature vs. High-Temperature Extraction

The main difference lies in soybean preparation and post-extraction meal treatment. Both routes extract oil and require solvent recovery, but they target different soybean meal applications.

Feature	Low-Temperature Route	High-Temperature Route
Material preparation	Flaking	Expansion
Meal treatment	Low-temperature desolventizing under a suitable process design	DTDC desolventizing, toasting, drying and cooling
Main objective	Preserve protein functionality and quality	Remove solvent and heat-treat the meal
Typical meal application	Further processing into soy protein ingredients	Feed ingredients and, where suitable, soy sauce brewing

The appropriate route depends on the required protein functionality, meal specifications, processing capacity, and available utilities. Actual temperature and operating conditions must be determined through process design rather than applying a single temperature limit to every plant.

How Does the Extraction Process Work?

Typical process flow:

Soybean cleaning and preparation → Flaking or expansion → Solvent extraction → Miscella evaporation and stripping → Crude soybean oil

In parallel:

Wet soybean meal → Desolventizing and meal treatment → Finished soybean meal

Recovered solvent is condensed and returned to the extraction system for reuse. The exact equipment arrangement depends on the selected process route and plant capacity.

For a more detailed explanation of soybean preparation, solvent extraction, miscella separation, and meal desolventizing, see our guide to the soybean oil solvent extraction process.

Key Performance Indicators

The following are indicative design targets for preliminary project evaluation, not guaranteed results for every installation.

Residual oil in soybean meal

≤ 0.5%

Solvent consumption

~1.5 kg/t

of processed material

Solvent recovery rate

≥ 99.5%

Actual performance depends on soybean condition, preparation, meal specifications, equipment configuration, operating conditions, and the calculation basis used. Final figures should be confirmed during engineering design.

How to Select the Right Equipment

Before selecting a soybean oil solvent extraction system, confirm:

✓ Processing capacity: Required soybean throughput in tons per day (TPD).
✓ Preparation method: Flaked soybeans or expanded material.
✓ Meal requirements: Feed-grade meal or meal intended for further protein processing.
✓ Existing facilities: New plant or upgrade to an existing pressing or extraction line.
✓ Utilities and environmental requirements: Steam, power, cooling water, solvent recovery, and emission control.

For projects using pre-pressing followed by solvent extraction, the pressing section must be properly matched to the extraction system. A suitable soybean oil pre-pressing machine can be integrated according to the required capacity and process configuration.

QIE Group can configure the extraction system according to the project's processing capacity, meal requirements, and site conditions.

FAQ

Can solvent extraction be used after soybean pressing?

Yes. Pre-pressing followed by solvent extraction can be considered when the process design and target capacity justify the combined route. Direct extraction of prepared soybeans is another option.

What determines soybean meal residual oil content?

Residual oil depends on material preparation, flake or expanded-material characteristics, extraction conditions, and equipment operation. The final target should be confirmed during process design.

Does the extraction system include oil refining?

Not necessarily. Solvent extraction produces crude soybean oil. Degumming, deacidification, bleaching, and deodorization are downstream refining operations that can be supplied as a separate or integrated system. These processes require additional vegetable oil refining equipment, which can be configured according to crude oil quality and finished oil specifications.

Request a Soybean Oil Extraction Solution

Tell us your required processing capacity (TPD), project location, preferred soybean meal application, and whether the project is a new plant or an upgrade. QIE Group can assess the appropriate extraction route and equipment configuration for your project.

Product Introduction

QIE Group's soybean oil solvent extraction equipment efficiently extracts residual oil from prepared soybeans using solvent extraction technology. The system integrates oil extraction, meal desolventizing, and solvent recovery, with configurations tailored to plant capacity and soybean meal requirements.

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