Crude Oil Refining Equipment: Key Machines & Their Roles

Are you looking to improve oil quality and optimize production efficiency with right oil refining equipment for your edible oil processing plant? Drawing on years of industry experience, Henan Glory outlines the key machines for the crude oil refining equipment and their roles—to help you gain a clearer understanding of the equipment's value at each stage.

1. Degumming: Key Machines Used to Remove Phospholipids and Impurities

Degumming is the first step in oil refining, primarily aimed at removing hydrated and non-hydrated phospholipids, as well as particulate impurities, from crude oil.

Key Machines and Their Roles: 

Degumming Tank: The degumming tank is the core reaction vessel in the degumming process. Crude oil, preheated by a heat exchanger, enters the tank along with degumming agents such as phosphoric acid. The tank is typically equipped with a stirring device to ensure uniform mixing of the oil and reagents. Its stainless steel structure and sealed design effectively prevent contamination and ensure stable reaction conditions.

Heat Exchanger and Heater: Precisely controlling the oil temperature entering the degumming tank is crucial for ensuring the smooth progress of the hydration reaction.

Sealed Filter: As an auxiliary process, it can remove trace impurities from the oil.

2. Deacidification: Key Machines Used to Remove Free Fatty Acids

Deacidification aims to remove free fatty acids from oils to improve flavor stability and extend shelf life. Chemical neutralization is the most commonly used method.

Key Machines and Their Roles: 

Deacidification Tank: The key machine for batch crude oil refining. This multifunctional tank, equipped with stirring and heating, completes the entire deacidification process in one vessel. The process involves adding an alkali, heating and stirring to form soapstock, and then allowing it to settle for separation from the oil.

Disc Centrifuge: Essential for continuous crude oil refining equipment. Its high-speed rotation generates a powerful centrifugal force that enables highly efficient separation of soapstock, the by-product of deacidification.

Metering Pump: Accurately measures and delivers phosphoric acid and alkali solution.

Vacuum Dryer: Removes excess water from the washed oil.

3. Decolorization: Key Machines Used to Adsorb Pigments and Trace Impurities

Decolorization is the process of removing pigments (carotenoids, chlorophyll) and residual soap particles from oils using adsorbents (such as activated clay). The selection of equipment must be differentiated based on continuous and batch modes.

Key Machines and Their Roles:

Decolorization Tank/Tower: Continuous crude oil refining equipment uses a decolorization tower. Activated clay is added via an automatic quantitative feeding system and mixed with the oil preheated to 90°C within the tower. This equipment operates under vacuum conditions to prevent oxidation of the oil during heating. The resulting mixture is then filtered to separate the waste activated clay from the oil.

Activated Clay Quantitative Feeding System: Primarily used with continuous equipment to achieve precise addition of the adsorbent.

Heater: Controls the adsorption temperature required for decolorization.

Leaf Filter: Separates the decolorized oil from the waste activated clay.

4. Deodorization: Key Machines Used to Remove Odor-Causing Substances

Deodorization removes volatile substances that cause odors under high temperature and high vacuum conditions through steam distillation, enhancing the oil’s flavor.

Key Machines and Their Roles: 

Deodorization Tank/Tower: The deodorization tower is the key machine for continuous production, typically a complex vertical tower. It is made of stainless steel to withstand the high temperature (260°C) and the corrosion during deodorization. The decolorized oil undergoes continuous heat exchange and steam stripping within the tower, effectively removing volatile substances.

Vacuum System: Creates and maintains a high vacuum environment throughout the deodorization process, such as a steam jet pump.

Fatty Acid Collector: Recovers volatile fatty acids generated during deodorization as a byproduct.

Heat Exchange System: Significantly reduces steam consumption and achieves energy savings through efficient waste heat recovery.

Supporting and Control Systems

Semi-continuous and fully continuous refining equipment relies on a PLC-based automatic control system. This system automatically adjusts key parameters such as the temperature, pressure, flow rate, and stirring speed, minimizing human error, ensuring stable system operation, and effectively lowering labor costs. In contrast, batch refining equipment is mostly operated manually, where individual instruments monitor parameters such as the temperature and pressure of each piece of equipment. Manual adjustment is required, making it highly dependent on the operator's experience.

Henan Glory is ready to develop customized crude oil refining equipment tailored to your production scale. For a personal consultation, please feel free to contact us.

2026 Updated: What Is the Price of a 1tpd Vegetable Oil Refinery Machine? Full Guide for Small Oil Mills & Startups

As a professional edible oil processing equipment manufacturer with decades of production and global export experience, our team at Henan Glory gets this question every single day from entrepreneurs and small business owners worldwide. And it's no surprise: the 1tpd capacity refinery is the most popular choice for small-scale edible oil production, thanks to its low upfront investment, compact footprint, and easy operation that doesn't require a large technical team.

Our Two Top-Selling 1tpd Vegetable Oil Refinery Solutions: Full Pricing & Breakdown

1. Electric Heating 1tpd Vegetable Oil Refinery Machine | Official 2026 Quotation: ~$22,000 USD

Our electric-heated 1tpd oil refinery is built specifically for small-scale production sites with a stable power supply. It's our top-selling, most cost-effective option for new startups and small oil workshops.

Every component that comes into direct contact with edible oil is made from food-grade 304 stainless steel, fully meeting international food safety production standards. The complete integrated unit includes all the core systems you need for full-cycle oil refining, from degumming, deacidification, bleaching, and deodorization pots, to a high-efficiency oil filter system. Every refining tank is fitted with built-in electric heating modules and mechanical stirring systems, ensuring even heating and consistent, reliable refining results every time. The unit also comes with a full set of supporting systems, including a steam-water separator, hot water and lye tank, clay storage tank, oil transfer pumps, and all other necessary components for immediate operation. The unit's main frame is built with 201 stainless steel rectangular tubes and reinforced carbon steel supports, engineered for long-term stable operation and durability, even with daily use.

The biggest benefit of this electric heating design is that it eliminates the need for an external boiler or heat conduction oil furnace. This drastically cuts down your installation complexity, site requirements, and extra upfront costs for auxiliary equipment. 

2. Conduction Oil Heating 1tpd Vegetable Oil Refinery Machine | Official 2026 Quotation: ~$39,000 USD

Unlike the electric model, this unit comes with a dedicated, professional heat conduction oil furnace that supports combustion of coal or biomass fuel. This delivers a steady, continuous heat supply for the entire refining process, making it ideal for round-the-clock or long-duration production runs. In addition to the full core refining systems covering degumming, deacidification, bleaching, deodorization, and final filtration, this unit is upgraded with specialized auxiliary equipment including a high-performance cooling water pump, hydrocyclone system, and water jet vacuum pump. These upgrades ensure the precise temperature and vacuum levels required for consistent refining, even during extended production cycles, and deliver a more stable finished oil quality batch after batch.

The core strength of this solution is its lower long-term operating costs. For businesses with access to low-cost coal or biomass fuel, the ongoing energy expenses are significantly lower than electric heating models over time.

Ready to Get Started?

If you have any questions about our 1tpd vegetable oil refinery machines, contact us. We'll get back to you promptly with a tailored solution that fits your exact needs.

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Now Available Locally: DOING Palm Kernel Crackers & Crushers in Nigeria

Is your palm kernel oil business ready to scale up? Are you tired of low shelling rates and wasted kernels from outdated methods? If you're a palm kernel processor in Nigeria, there is exciting news! The machinery you need to boost your production and profits is now available right here in Nigeria, thanks to DOING's local branch.

Nigeria is the heart of Africa's palm kernel oil industry, and as demand grows, so does the need for efficiency. The old ways of manual processing just can't keep up. They lead to high kernel loss, low productivity, and squeezed profits. That's where modern machinery makes all the difference.

The Secret to Higher Oil Yield: Efficient Crushing

The process of cracking and crushing is the make-or-break point for your final oil output. You need equipment that does the job right. Our hot-selling Palm Kernel Cracker uses a powerful impact mechanism to achieve a shelling rate of over 95%. It cleanly separates the hard shell from the soft kernel without smashing the kernel into useless pieces.

Once shelled, our Palm Kernel Crusher takes those kernels and breaks them into perfectly sized fragments (about 6-8 pieces). This preparation is key because it exposes more surface area, allowing your screw press to extract every last drop of oil. Better crushing equals a higher oil yield, which means more money from the same amount of raw material.

Why Nigerian Processors Love DOING: Spot Delivery!

While our machines are built for performance, our local service is what wins hearts. We understand that in business, time is money. You can't afford to wait months for a container to arrive from overseas.

That's why we've stocked our Nigerian branch and warehouse with a full range of palm kernel crackers and crushers. This means you can:
(1) Inspect the quality in person before you buy.
(2) Take delivery on the spot and start production immediately.
(3) Avoid international shipping delays and risks.

We don't just sell machines; we build partnerships. If you need technical support, our team is ready. We can arrange for professional engineers to visit your site for installation and training, ensuring your operation runs smoothly from day one.

The opportunity to modernize your processing plant is here. With DOING's reliable equipment available locally in Nigeria, upgrading your business has never been easier.

Contact DOING Nigeria today to pick up your machine and start maximizing your palm kernel oil production!

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Boost Your Palm Kernel Oil Production with Efficient Cracking & Crushing Machines in Nigeria

As Nigeria continues to lead Africa in palm kernel oil production, the shift from traditional manual methods to modern mechanical processing is accelerating. To meet rising demand, more producers are upgrading their operations with reliable and efficient machinery—and DOING's palm kernel cracker and crusher are becoming the preferred choice across the country.

Why Modern Palm Kernel Processing Equipment Matters

In palm kernel oil production, cracking and crushing are critical steps that determine final oil yield and quality. Many local processors still rely on outdated manual or semi-mechanical tools, which often result in:

• Low shelling rate

• High kernel breakage and loss

• Inefficient production capacity

• Reduced overall oil recovery

This not only increases operational costs but also limits potential for business growth and industry modernization.

How DOING's Machines Make a Difference

Palm Kernel Cracker
Specially designed to separate the hard shell from the kernel using impact-based technology, it achieves a shelling rate of over 95%, preserving kernel integrity and minimizing waste.

Palm Kernel Crusher
After cracking, this machine breaks kernels into 6–8 small pieces, increasing surface area for better oil release during pressing and improving overall oil yield.

Why Choose DOING in Nigeria?

Beyond equipment performance, our local presence sets us apart:

Local Stock & Quick Pickup:
Our Nigeria branch and warehouse maintain ready inventory. Inspect and collect machines on the spot—no long waits or shipping uncertainties.

On-Site Technical Support:
If needed, we can arrange engineers for installation, commissioning, and operator training to ensure smooth operation from day one.

Reliable After-Sales Service:
Prompt local support helps you maintain productivity and address any operational issues quickly.

As Nigeria's palm kernel oil sector grows, investing in the right equipment is key to staying competitive. DOING provides not only high-performance crackers and crushers, but also the local service backup to keep your production running smoothly.

Interested in seeing our machines or learning more?

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Finding the Right Oil Press: A Guide to Peanut Oil Processing Machines for Small-Scale Producers

For small-scale peanut oil producers, choosing the right press isn't just about buying equipment—it's about defining your business. The right machine balances efficiency, oil quality, and cost, shaping everything from your daily output to your market appeal. Whether you're supplying local communities or targeting premium buyers, understanding your options is the first step to success.

Here's a breakdown of the three most common types of oil presses found in small processing plants, each with its own strengths.

1. The Workhorse: Screw Oil Presses

If you need reliable, continuous operation for moderate-scale production, the screw press (or expeller press) is likely your best match. It works by forcing peanut kernels through a rotating screw, mechanically squeezing out the oil.

Best for: Producers prioritizing steady output and automation.
Typical Daily Capacity: 5–20 tons of peanuts.
Oil Yield: Around 35–45%, depending on kernel quality.

The Bottom Line: It's efficient, requires less manual labor, and is a cost-effective choice for supplying broader markets. Keep in mind that the crude oil will need filtering, as it may contain some solids from the pressing process.

2. The Artisan Choice: Hydraulic Oil Presses

When oil purity, flavor, and nutrient retention are your top priorities, the hydraulic press shines. It uses controlled hydraulic pressure to squeeze oil from peanut meal in batches, a gentler process that generates less heat.

Best for: Craft or "cold-pressed" oil producers targeting premium, health-conscious, or local artisan markets.
Typical Daily Capacity: 1–5 tons (batch processing).
Oil Yield: A slightly higher 40–48%, with exceptional purity.

The Bottom Line: This method preserves the peanut's natural aroma and nutritional value beautifully, often requiring less filtration. The trade-off is a slower, batch-based process that may limit large-scale volume.

3. The All-in-One Solution: Integrated Pretreatment & Pressing Systems

Why stop at just pressing? Integrated systems combine cleaning, shelling, roasting, and pressing into one streamlined workflow. A common setup pairs a roasting machine with a screw press, preheating the peanuts to optimize oil flow and flavor.

Best for: Processors looking to maximize efficiency, consistency, and control over the entire production chain.
Key Advantage: Preheating (to 120–130°C) can boost oil yield by 3-5% and creates that beloved, rich roasted peanut aroma. It minimizes handling and ensures a uniform product.

The Bottom Line: While the upfront investment is higher, the gains in productivity, oil quality, and operational smoothness can quickly justify the cost for a growing business.

For many, the screw press offers the best balance to start. Those in niche markets may lean toward hydraulic presses, while integrated systems are the goal for scaling up efficiently.

A Final Note on Sourcing: Many reliable manufacturers, such as Henan Glory Company, offer these standard presses and even have overseas warehouse networks to support international customers. It's worth researching suppliers who can provide not just the machine, but also the technical support and parts you might need.

By carefully matching your equipment to your vision, you can build a small peanut oil processing operation that is both sustainable and competitive.

Where can I buy small scale palm oil refinery machine(1-20tpd)?

For small and medium-sized producers looking to turn crude palm oil into clear, stable, and market-ready edible oil, Henan Glory Company's batch type palm oil refinery machine offers the perfect balance of efficiency and flexibility. With capacities ranging from 1 to 20tpd, this refinery is designed to deliver high-quality refined palm oil while keeping operational costs manageable.

Why Choose a Batch Type Palm Oil Refinery Machine?

Unlike large continuous systems, batch type refining allows you to process oil in controlled, separate lots. This is especially useful if you work with multiple oil types—such as palm, soybean, sunflower, or peanut oil—and need to switch between them without downtime or cross-contamination. Whether you're starting with 1 TPD or scaling up to 20 TPD, batch systems give you the adaptability to meet changing market demands.

Four Key Steps to Purity and Quality

The batch refining process follows four essential stages, each targeting specific impurities in crude palm oil:

1) Degumming – Removes phospholipids and gums through hydration, preventing forming and discoloration during heating.

2) Deacidification – Uses alkali neutralization to eliminate free fatty acids (FFA), improving oil stability and shelf life.

3) Bleaching – Adsorbs unwanted pigments like chlorophyll and carotenoids using activated clay, resulting in a clearer, brighter oil.

4) Deodorization – Conducted under high-temperature vacuum distillation, this step removes odor-causing compounds. The deodorization tank, made from corrosion-resistant 304 stainless steel, ensures the oil does not re-oxidize, preserving its natural quality.

Together, these stages ensure that the final product meets national edible oil standards while retaining the oil's natural nutrients.

Tailored Heating Options for Different Scales

To suit various production needs, batch refinery machines come with two heating choices:
1) Electric Heating – Ideal for small workshops (0.5, 1, or 2 TPD), featuring all-stainless-steel construction and lower upfront investment.

2) Thermal Oil Heating – Recommended for larger outputs (1–20 TPD), this method uses a thermal oil furnace and coil system for energy-efficient, consistent heating of larger batches.

Eco-Friendly and Cost-Effective Design

Modern batch refineries are built with closed-system technology, minimizing exhaust emissions and reducing residue pollution. This not only helps you comply with environmental regulations but also lowers waste management costs.

Explore detailed specifications, customized configurations, and competitive pricing for batch type palm oil refinery machines (1-20 TPD). Contact Henan Glory Company today for a solution tailored to your production goals.

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Why Your Groundnut Oil Turns Cloudy or Smells Off—And How Refining Solves It

Are you a groundnut oil producer struggling with cloudy oil, unpleasant odors, or short shelf life? You're not alone. A common challenge many face is that freshly pressed crude oil becomes turbid or develops off-flavors within months. The root cause often lies not in the pressing itself, but in the missing step that guarantees quality: refining.

At Henan Glory, we understand that quality is what builds trust and grows your business. Let's break down how a dedicated groundnut oil refining machine transforms crude oil into a clear, stable, and market-ready product by removing specific impurities at each stage.

1. Degumming: Eliminating Turbidity

The cloudiness and sediment you see in stored crude oil are primarily caused by phospholipids. Customers reject cloudy oil, hurting your sales.

Our Solution: In our degumming process, crude oil is heated and stirred while a phosphoric acid solution is introduced. This causes phospholipids and other colloids to coagulate. After settling, these impurities are removed, resulting in a visibly clearer oil that stays stable on the shelf.

2. Deacidification: Ensuring Freshness & Longevity

Free Fatty Acids (FFA) are responsible for off-flavors and rapid spoilage, directly cutting into your profits.

Our Solution: Through a controlled reaction with an alkaline solution in our deacidification system, FFAs are neutralized and removed as soapstock. This crucial step significantly extends your oil's shelf life and ensures a clean, neutral taste.

3. Decolorization: Creating the Perfect Golden Hue

Crude groundnut oil's dark color, from natural pigments and oxidation, is less appealing to consumers who expect the attractive golden-yellow oil seen in stores.

Our Solution: Our decolorization process uses activated clay under precise heating and stirring to adsorb these pigments. The result is a consistently beautiful, market-favored color that enhances your product's visual appeal.

4. Deodorization: Delivering a Neutral, Pure Taste

Unwanted raw or burnt notes (often from pressing variations) can deter consumers. Modern buyers prefer a clean, neutral edible oil.

Our Solution: Our deodorization pot operates in a high-temperature vacuum. This steam-strips all volatile odor compounds without oxidizing the oil, guaranteeing a bland, pure flavor profile that meets consumer expectations.

Scalable Solutions for Your Growth

Our batch refining systems are ideal for plants processing under 20 tons daily. As you expand, the system can be upgraded to a semi-continuous setup (e.g., with a continuous deodorization tower), boosting capacity to 30 tons/day with better efficiency.

For large-scale operations exceeding 30 tons daily, we provide fully continuous, automated refining lines designed for maximum throughput and consistent, premium quality.

Invest in the quality that builds your brand. If you're facing issues with oil clarity, shelf life, color, or odor—or if you're planning a new or upgraded your peanut oil refining line—let's connect.

Contact us for more details
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