Rice bran oil is rich in natural active ingredients such as gamma-oryzanol and phytosterols, offering exceptional nutritional value. With the growing popularity of health-conscious consumption, rice bran oil processing has emerged as a highly promising investment opportunity. However, rice bran presents specific challenges—such as low oil content, a powdery texture, and a high susceptibility to rancidity—which demand advanced processing technology and equipment. So, what exactly is required to establish a rice bran oil processing plant? Drawing on the technical expertise of Henan Huatai Cereals & Oils Machinery Co., Ltd.—a national-level “Little Giant” enterprise recognized for specialization, refinement, uniqueness, and innovation—this article outlines the complete equipment list for a rice bran oil processing plant.
Why is specialized equipment required for rice bran oil processing?
Rice bran is a byproduct of rice milling with an oil content of approximately 15%. However, it contains highly active lipases; once milled and exposed to air, the fat rapidly hydrolyzes into free fatty acids, causing the bran to go rancid. Consequently, pretreatment and oil extraction must be carried out quickly while the bran is fresh. This places stringent demands on the equipment regarding processing speed, automation levels, and technical precision.
Currently, the mainstream processing method follows the “expansion pretreatment + solvent extraction + refining” route. A complete rice bran oil production line typically comprises three main sections: pretreatment, extraction, and refining. The core equipment required for each section is detailed below.
Complete equipment list for a rice bran oil processing plant
1) Pretreatment section equipment
Pretreatment is the critical first step in the process, directly influencing subsequent oil yield and crude oil quality. Addressing the specific characteristics of rice bran—namely its tendency to spoil and its powdery nature—Huatai Oil Machinery has developed a highly adaptable, intelligent rice bran pretreatment production line.
Key equipment in the pretreatment section includes:
Cleaning and screening equipment: Bran-broken rice separators, vibrating screens, magnetic separators, air separators, etc. These are used to remove impurities such as broken rice, rice husks, and metal filings, thereby increasing the purity of the rice bran.
Conditioning Equipment: Conditioning pot; this adjusts the temperature and moisture content of the rice bran to improve its physical properties, preparing it for the subsequent expansion process.
Expander: A core equipment. The rice bran undergoes instantaneous processing at high temperatures (110–140°C) and high pressure. This process inactivates lipase activity (extending the bran’s shelf life) and transforms the powdery bran into a porous, columnar structure, significantly enhancing solvent permeability during the subsequent extraction stage.
Drying Equipment: Includes flat-bed dryers, counter-flow dryers, etc., used to reduce the moisture content of the expanded rice bran.
2) Extraction Section Equipment
The extraction section is the core stage of rice bran oil extraction, utilizing organic solvents to extract oil from the bran. Equipment configuration in this section directly impacts oil yield and production costs.
Key equipment in the extraction section includes:
Oil Extractor: Facilitates counter-current immersion extraction of rice bran using solvent; it is the central unit of the extractionworkshop. Huatai Oil Machinery’s equipment utilizes an advanced drag-chain extractor, effectively reducing consumption metrics.
Evaporation System: Comprising evaporators and stripping towers, this system separates and recovers solvent from the oil-solvent mixture (miscella) to yield crude rice bran oil.
Desolventizer-Toaster (DTDC): Removes solvent from the wet extracted bran meal, producing rice bran meal suitable for use as animal feed.
Condensation and Recovery System: Includes condensers, tail-gas recovery systems, and solvent-water separation/circulation systems; these recover and recycle solvents, thereby lowering production costs.
3) Refining Section Equipment
Crude rice bran oil obtained from the extraction process contains impurities such as free fatty acids, gums, pigments, and waxes; it must undergo refining to meet national standards for edible oil. The refining section is the critical stage that determines the quality and nutritional value of the rice bran oil.
Key equipment in the refining section includes:
Degumming equipment: Acid refining tanks or hydration tanks, centrifugal mixers, centrifuges, etc., used to remove phospholipids and gums from the crude oil. Huatai Oil Machinery offers advanced rice bran oil refining processes, such as enzymatic degumming.
Deacidification equipment: Alkali refining tanks, deacidification towers, neutralization tanks, etc., used to remove free fatty acids via chemical or physical methods.
Decolorization equipment: Bleaching earth mixers, decolorization towers, filters, vacuum systems, etc., utilizing activated bleaching earth to adsorb and remove pigments from the oil.
Deodorization equipment: Deodorization towers, thermal oil heaters, etc., used to remove odor-causing substances through high-temperature vacuum distillation.
Dewaxing equipment: Crystallization tanks, crystal-aging tanks, plate-and-frame filters, etc., used to remove waxes from rice bran oil through low-temperature crystallization and filtration.
Vacuum system: Employs chilled-vacuum or chilled-water vacuum systems to significantly reduce steam consumption and wastewater discharge.
Huatai Oil Machinery’s complete rice bran oil refining systems utilize advanced process technologies to maximize the retention of the oil’s nutritional value. Huatai’s fully automated rice bran oil refining equipment supports processing capacities ranging from 1 to 1,000 tons per day, allowing for flexible customization based on specific scale requirements.
Why Choose Henan Huatai Oil Machinery?
Henan Huatai Cereals & Oils Machinery Co., Ltd., established in 1988, is a large-scale enterprise integrating R&D, design, manufacturing, and installation of grain and oil machinery. The company operates a modern facility covering approximately 100,000 square meters with 12 intelligent workshops, and its products are sold in over 70 countries and regions worldwide.
In the field of rice bran oil processing, Huatai Oil Machinery possesses three core advantages:
1) Technological leadership. Huatai Oil Machinery’s complete sets of equipment for rice bran expansion pretreatment and solvent extraction have won the Henan Province Science and Technology Achievement Award and the National Science and Technology Progress Award (Second Prize); its complete equipment for Grade-1 rice bran oil refining holds a national invention patent.
2) Extensive experience. Huatai Oil Machinery has long focused on the R&D and manufacturing of complete production lines for rice bran oil extraction, supplying systems with capacities ranging from 10 tons/day to 1000 tons/day to numerous domestic and international clients. From a 200-ton/day complete rice bran oil plant in Vietnam to a 30-ton/day extraction facility in Iran, Huatai Oil Machinery has accumulated a wealth of global project experience.
3) Comprehensive service. Huatai Oil Machinery provides “turnkey” project services covering everything from design and manufacturing to installation and commissioning. With offices in over 20 countries and regions worldwide, the company offers full-lifecycle technical support to its clients.
Conclusion
Establishing a rice bran oil mill plant requires a complete set of specialized equipment for pretreatment, extraction, and refining. Selecting a rice bran oil equipment supplier with strong technical capabilities, extensive experience, and comprehensive service is key to the project’s success. As a national-level “Little Giant” enterprise recognized for specialization, refinement, uniqueness, and innovation, Henan Huatai Cereals & Oils Machinery Co., Ltd. possesses deep technical expertise and rich practical experience in rice bran oil processing equipment, making it a reliable partner for your investment project.
If you are planning to invest in a rice bran oil processing project, please contact us for professional equipment solutions and technical consultation.
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