Rice Bran Oil Processing Plant

A Rice Bran Oil Processing Plant is a solution for converting fresh rice bran into refined, dewaxed edible oil.

This Guance Machinery solution describes a three-workshop layout—pretreatment, extraction, and refining—based on proven industrial practice and continuous operation logic.

Raw Materials to Finished Oil Legend

Overall Process Flow of Rice Bran Oil Processing Plant

1. Pretreatment workshop (cleaning, conditioning, drying).

2. Extraction workshop (solvent extraction of crude rice bran oil).

3. Refining workshop (physical refining & dewaxing of refined rice bran oil).

Pretreatment Workshop in a Rice Bran Oil Processing Plant

The pretreatment workshop prepares rice bran for while reducing enzyme activity and moisture fluctuation.

Step 1: Impurity Removal

Fresh rice bran first passes through a rotary screening machine, removing: Straw fibers, Rice husk fragments, Large foreign impurities etc.

Step 2: Particle and Sand Removal

A oilseed destoner machine removes: Sand, Small stones, Heavy inorganic particles etc.

Step 3: Conditioning

Cleaned rice bran enters a vertical steam cooker for: Heat conditioning, Partial lipase deactivation, Improved oil cell permeability etc.

Step 4: Moisture Adjustment

After conditioning, rice bran is dried using a continuous dryer: Final moisture: 8–10%, Uniform material flow to extraction section etc.

Extraction Workshop: Solvent-Based Oil Recovery

At scale, solvent extraction is the standard configuration for rice bran oil processing plants.

Flat Rotary Extractor (Rice Bran Solvent Extraction)

The core equipment is a flat rotary extractor, designed for: Continuous solvent percolation, High extraction efficiency, Stable miscella concentration etc.

Key Advantages: Counter-current solvent flow, Uniform bed depth control, Residual oil in meal ≤1% etc.

Supporting Extraction Equipment

Include: Miscella circulation system, Evaporation and solvent recovery units, Meal desolventizing and drying system etc.

Defatted rice bran meal exits the extraction workshop for sold as animal feed sell.

Refining Workshop in a Rice Bran Oil Processing Plant

Degumming Equipment: Crude rice bran oil is first phosphoric is dosed, non-hydratable phospholipids are converted to hydratable form.

Gum Separation to Gums Tank: hydrated gums are separated by settling or centrifugation flow into a gums collection tank.

Vacuum Bleaching: degummed oil is residual moisture, soaps, and trace volatiles are removed, pigments, oxidation products, and metal ions are adsorbed.

Filtration: oil passes through a pressure leaf filter, spent bleaching earth is retained, clear, low-impurity oil exits the filtration equipment, transferred to a buffer oil tank.

Physical Deacidification & Deodorization Tower: oil free fatty acids are removed by direct steam stripping, odor-causing compounds are eliminated.

Winterization Dewaxing

Rice bran oil contains natural waxes that must be removed to ensure clarity.

Winterization dewaxing process includes: Controlled cooling crystallization, Wax crystal growth, Filtration or centrifugation etc.

Finished Oil Storage

Dewaxed and deodorized oil is transferred to finished oil tanks, ready for: Automatic bottling machine, Bulk loading, Export distribution etc.

Utility and Control Considerations (Example: 100 TPD Plant)

Item	Typical Range
Steam consumption	280–320 kg/ton oil
Electricity	28–35 kWh/ton bran
Vacuum level	≤5 mbar
Automation	PLC centralized control
This data is for reference only.

Rice Bran Oil Process of Advantages

1. Clear workshop separation improves safety.

2. Stable FFA control through early conditioning.

3. High oil yield with flat rotary extraction.

4. Dedicated dewaxing ensures market-grade clarity.

Guance Machinery designs each Rice Bran Oil Processing Plant based on real operating parameters, adapting equipment size and control logic to local raw material conditions.

Final Product

1. Refined Rice Bran Oil: used as premium edible oil, sold to food brands, bottlers, wholesalers, and retail distributors.

2. Crude Rice Bran Oil: used for further refining or oleochemical processing, sold to refineries and biodiesel producers.

3. Rice Bran Meal Fines: used as feed supplement or fermentation substrate, sold to feed processors and bio-fermentation plants.

4. Spent Bleaching Earth (Oil-Bearing): used for fuel blending or oil recovery, sold to cement plants and waste-to-energy operators.

5. Recovered Hexane: uecovered and reused as extraction solvent within the plant.

Standard Parameters of Production Line Rice Bran Oil

Process	Parameter Name	Parameter Value
Feeding Rice Bran	FFA	10% Max
	Oil	18% Min
	Crude Fiber	15% Max
	Crude Protein	15% Min
Pre Processing	Rice Bran Oil	18%
Pre Processing	Rice Bran Moisture	10%
Solvent Extraction	Micessella Oil	18% Max
	Final Spray Oil	0.5% Max
	Efficiency of Oil Extraction	95% Min
	Hexane Loss 6 ltr for 1Mt of Raw Material
	De Oiled Rice Bran Moisture	10% Max
Refining Process	Feeding Crude Oil FFA	10% Max
	Refined Oil FFA	0.1% Max
	Refined Oil Moisture	0.1% Max
	Remaining Oil Percetage of Gums	50% Max
	Remaining Oil Percetage of Wax	50% Max
	Remaining Oil Percetage of Spent Earth	20% Max
	Remaining Oil Percetage of PFAD	10% Max
This data is for reference only.

Rice Bran Oil Processing in FAQs

Q1: Why must rice bran be processed immediately after milling?

A: Because active lipase rapidly increases FFA, reducing oil yield and refining efficiency.

Q2: What is the typical oil content of fresh rice bran?

A: Fresh rice bran usually contains 16–22% oil, depending on rice variety and milling conditions.

Q3: Is rice bran oil suitable for physical refining?

A: Yes, properly degummed rice bran oil is well-suited for physical refining at industrial scale.

How Guance Machinery Integrates Into the Solution?

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