The heating unit is responsible for raising the temperature of crude oil to the required distillation level, typically between 350°C and 400°C. This controlled heating process ensures that the crude oil is partially vaporized before entering the distillation column, enabling efficient separation of various petroleum fractions.
Crude Oil Distillation Plant
Main function of a Crude Oil Distillation Plant is to utilize the principle of different boiling points of petroleum fractions to separate crude oil into various petroleum products such as gasoline, kerosene, diesel, and lubricating oil through heating and cooling.
The Pyrolysis Unit Crude Oil Distillation Plant adopts a horizontal tower structure, specially designed for crude oil distillation and waste oil pyrolysis recovery. It operates in a stable continuous mode and is particularly suitable for large-scale waste oil distillation needs. With a daily processing capacity of 15–35 T of crude oil, it can efficiently convert waste oil into high-value diesel and gasoline.
Features of Crude Oil Distillation Plant>>
The distillation column is the core component of the plant. It operates based on the principle of different boiling points of petroleum fractions. As the vaporized crude oil rises through the column, lighter fractions such as gasoline condense at the top, while heavier fractions like diesel and kerosene condense at lower levels. Internal trays or structured packing maximize the contact area between vapor and liquid, improving separation efficiency.
The condenser system cools the vaporized fractions drawn from the distillation column, converting them into liquid form. Each fraction is directed to its respective storage tank for collection. The condenser ensures product purity and stabilizes the separation process, while also recovering heat for improved energy efficiency.
About Crude Oil Distillation Plant Guide>>
Product definition and function introduction
1. What is a Crude Oil Distillation Plant?
A Crude Oil Distillation Plant is an industrial processing unit designed to separate crude oil into different petroleum products based on the principle of fractional distillation. By utilizing the varying boiling points of different hydrocarbon fractions, the plant can efficiently produce gasoline, kerosene, diesel, lubricating oil, and other refined products from raw crude oil or waste oil.
2. Main Functions and Applications
Petroleum Product Separation – Divides crude oil into multiple fractions such as gasoline, diesel, kerosene, and heavy oil.
Waste Oil Recovery – Converts waste engine oil, waste diesel, or other used oils into reusable fuels.
Energy Production – Supplies refined fuels for transportation, industrial heating, and power generation.
Environmental Protection – Supports resource recycling and reduces pollution from improper waste oil disposal.
3. Working Principle Overview
The plant operates through a heating–distillation–condensation process:
Heating – Crude oil is pumped into a furnace or heating unit, where it is raised to high temperatures (typically 350–400°C) to vaporize the lighter components.
Fractional Distillation – The vapor enters a distillation column, where internal trays or packing create contact surfaces for heat and mass transfer. Different fractions condense at different levels according to their boiling points—lighter fractions like gasoline at the top, heavier fractions like diesel and kerosene at lower sections.
Condensation and Collection – The separated vapors are directed to condensers, where they are cooled into liquids and stored in dedicated tanks for further processing or direct sale.
Core technology Advantages
Environmentally Friendly and Efficient Process
The plant operates with smokeless and odorless atmospheric distillation technology, equipped with waste gas burners, flue dust removal systems, and waste gas recycling, ensuring that emissions meet national environmental standards and significantly reduce pollution.
Superior Safety Performance
The system features water-circulation safety mechanisms and multiple safety devices such as water seals and gas nozzles, effectively preventing combustion risks from hydrocarbon gases (C1-C4), ensuring safe and stable production.
Energy Saving and Cost Effective
The innovative gas heating system fully combusts methane to butane gases generated during distillation, greatly saving energy and improving overall system efficiency, thereby reducing operating costs.
High Productivity and Quality
By utilizing vacuum distillation technology and hot air heating, the plant increases output per unit time while producing fuel oil with stable quality, controlled color, and odor, meeting the standards of 0# or -10# diesel.
High Degree of Automation and Easy Operation
Integrated with a centralized control system, the plant enables automatic monitoring and control throughout the production process, reducing labor requirements and improving operational safety and efficiency.
Wide Application Range and Versatility
Suitable for processing crude oil from waste plastics, waste rubber, waste diesel engine oil, waste lubricants, and other waste oils, meeting diverse industry needs for producing regenerated fuel oil with one machine serving multiple purposes.
Core Components of Crude Oil Distillation Plant
Distillation Reactor
Acts as the primary heating chamber where crude pyrolysis oil is heated and vaporized. Initiates the separation of oil fractions through controlled thermal processing under atmospheric or slight vacuum conditions. Designed to handle high temperatures with robust insulation to ensure safety and efficiency.
Buffer Tank
Temporarily stores separated oil vapors and stabilizes the pressure within the system. Prevents backflow and ensures smooth, continuous vapor delivery to the condenser. Acts as a safety buffer during pressure fluctuations or sudden feed interruptions.
Condensation System
Rapidly cools oil vapors into liquid form (diesel, gasoline, etc.) through efficient heat exchange. Usually consists of multiple condensers (e.g., shell-and-tube or coil type) to maximize condensation efficiency. Directly influences the final oil yield and recovery rate.
Fractionating Tower
Performs fractional separation of vaporized oil based on boiling points. Ensures higher purity output by allowing light and heavy oil vapors to condense at different levels. Enhances product quality through multi-stage temperature stratification.
Non-condensable Gas Recycling System
Captures and recycles non-condensable gases (e.g., methane, ethane, propane). These gases are reused as fuel for the heating system, forming a closed-loop energy cycle. Helps reduce external fuel costs and minimizes emissions.
Flue Gas Heating System / Exhaust Gas Treatment Unit
Burns recycled gases and provides thermal energy to heat the distillation reactor. Integrated with safety features like gas burners, flame arrestors, and backfire prevention. Includes systems for neutralizing or capturing harmful exhaust, ensuring compliance with emission standards.
Smoke Dust Removal System
Treats flue gases before atmospheric discharge to remove particulates, smoke, and acidic gases. Typically uses dual-stage water scrubbers or cyclone dust collectors. Ensures the plant complies with national and international environmental regulations.
What Types of Materials Can a Crude Oil Distillation Plant Process?
Waste engine oil and waste oil
Output Material: Diesel or gasoline, asphalt。
Oil yield rate: 70~85%
asphalt content：5-15%
Note: The asphalt content is related to the customer's choice of drying process and non drying process.
crude oil
Output Material: Diesel or gasoline
Note: The ratio of diesel and asphalt obtained after crude oil distillation is related to the composition and impurities in the crude oil, and the specific situation shall prevail
pyrolysis oil
Output Material:
Diesel or gasoline
Oil yield rate: 70~80%
esidue: 20~30%
Diatomite
Output Material: pyrolysis oil / diesel, carbon black
The oil yield depends on the type and state of diatomaceous earth
Questions users consider crude oil distillation machine
- High Separation Efficiency
Utilizes advanced fractional distillation technology to achieve precise separation of crude oil into multiple high-quality petroleum products, maximizing yield and product purity. - Energy-Saving Operation
Equipped with efficient heating and heat recovery systems to minimize energy consumption and reduce operational costs, promoting sustainable production. - Robust and Stable Performance
Designed with durable materials and reliable components, ensuring continuous and stable operation under varying industrial conditions. - Environmental Compliance
Incorporates state-of-the-art emission control and waste management technologies, meeting stringent environmental regulations and minimizing pollution. - Flexible Capacity and Scalability
Available in multiple models to accommodate different processing capacities, from small-scale batch operations to large-scale continuous distillation plants. - User-Friendly Control System
Features automated control systems (PLC/DCS) for precise monitoring and management of temperature, pressure, and flow rates, enhancing safety and operational efficiency.
1. Processing Capacity and Production Output
Our PU-1 Crude Oil Distillation Plant features a horizontal tower structure designed for waste oil pyrolysis recovery, with a daily processing capacity of 10-35 tons of raw materials, ideal for small to medium-scale waste oil refining. Models CS-2 and CS-3 offer capacities of 20 tons and 30 tons per day, respectively, to meet diverse production requirements.
2. Oil Yield and Product Quality
The equipment guarantees a minimum 80% oil yield, producing refined products including diesel and gasoline. The finished oil meets national standards for 0# or -10# diesel fuel. The distilled oil is light yellow or light red in color, odor-free, and complies with environmental and usage standards.
3. Energy Consumption and Operating Costs
The power configuration ranges from 15.0 kW (CS-1) to 20.0 kW (CS-2/3), utilizing direct heating and water cooling systems to ensure operational efficiency and energy saving.
The daily operating cost is controlled around approximately $3,700 USD, covering raw materials, labor, fuel, electricity, water, and additives.
The waste gas combustion recycling system significantly reduces energy expenses and increases economic benefits.
4. Equipment Stability and Reliability
The plant adopts advanced atmospheric pyrolysis technology and automated control systems, with a rational design and advanced manufacturing process. The gas heating system and waste gas recycling combustion system ensure stable and safe operation. Noise levels are controlled below 85 dB(A), reducing the risk of operational faults.
5. Environmental Protection and Safety
The entire system operates in a smokeless and odorless environment, equipped with gas nozzles and water seal safety devices that effectively eliminate waste gas pollution and ensure safe production.
The flue gas dust removal system uses a bi-directional water impact cyclone dust collector, meeting national emission standards.
Wastewater is neutralized and filtered through a three-stage process for harmless discharge. Solid residues after pyrolysis, mainly asphalt, can be sold as by-products, achieving comprehensive resource utilization.
6. Installation Period and After-Sales Service
The manufacturing lead time is only 20 days, ensuring timely delivery.
We provide comprehensive after-sales service with a one-year warranty on main equipment. Professional engineers offer on-site installation and commissioning guidance to ensure smooth production start-up.
Free technical upgrades and lifelong technical support are guaranteed, giving customers peace of mind.
7. Investment Return and Economic Benefits
For the PU-1 model, the required factory area is about 300 square meters, with 5 production workers (excluding management), ensuring efficient operations.
Daily output reaches approximately 9 tons of finished oil (8 tons diesel + 1 ton gasoline). Based on current market prices, daily profit exceeds $3,200 USD, with annual profit estimated at approximately $970,000 USD.
The project features low investment, quick payback, and significant economic benefits, making it ideal for waste oil deep processing and environmental protection industries
Understand from the perspective of application industry
Industry Demand Analysis for High-Efficiency Distillation Equipment
1. Demand Background in the Industry
With the rapid growth of the waste plastics, rubber refining, and waste oil recycling sectors, there is an increasing need for efficient and reliable distillation equipment. Traditional processing methods, such as rudimentary batch distillation units or fixed-bed furnaces, suffer from low productivity, poor product quality, and environmental compliance challenges. This has driven the market demand toward advanced distillation plants that can process larger volumes, achieve higher oil yield, and maintain product consistency, thereby enhancing operational profitability.
2. Environmental Regulations Driving Industry Upgrades
Stricter environmental protection regulations at national and regional levels have become a major catalyst for upgrading distillation technologies. Regulations targeting emission reductions, waste gas treatment, and pollution control require distillation equipment to adopt cleaner combustion systems, efficient dust removal, and effective waste management. Consequently, enterprises are compelled to replace outdated, inefficient equipment with modern, eco-friendly distillation plants that comply with stringent environmental standards.
3. Green Energy Development Trends and Equipment Requirements
The global push toward sustainable and green energy solutions has further influenced the distillation equipment market. There is growing demand for plants capable of converting waste oils into high-quality renewable fuels, contributing to circular economy goals and carbon footprint reduction. This trend requires distillation machines to not only deliver high energy efficiency and low emissions but also integrate smart control systems for optimized operation and resource conservation.
Industry Outlook and Future Prospects
1. Market Size and Growth Potential
The crude oil distillation and waste oil recycling industry is experiencing robust growth fueled by increasing demand for renewable fuels and resource recovery. Market analysis shows a steady annual growth rate driven by rising environmental awareness, stricter regulations, and expanding applications in transportation, power generation, and industrial sectors. As global efforts to reduce fossil fuel dependence accelerate, the market for high-efficiency distillation equipment is expected to expand significantly over the next decade.
2. Impact of Technological Innovation
Technological advancements play a critical role in enhancing the efficiency, safety, and environmental performance of distillation plants. Innovations such as advanced heating systems, improved fractionation columns, and enhanced waste gas treatment technologies contribute to higher product quality and reduced operational costs. Continuous R&D efforts also enable the development of modular and scalable equipment, catering to diverse industrial needs and facilitating quicker deployment.
3. Future Trends: Intelligent and Automated Systems
The future of the distillation industry is moving toward intelligent automation and digitalization. Integration of PLC/DCS control systems, real-time monitoring, predictive maintenance, and AI-driven process optimization will enable plants to achieve higher operational precision, energy savings, and safer working conditions. Smart distillation plants will also provide better data analytics capabilities, empowering operators to make informed decisions and adapt swiftly to changing market demands.
Specific Parameters>>
| Item | Content PU-1 Model | Content PU-2 Model | Content PU-3 Model |
|---|---|---|---|
| Equipment Price | Negotiable | Negotiable | Negotiable |
| Raw Material | Waste Oil | Waste Oil | Waste Oil |
| Structure Type | Horizontal with Tower | Horizontal with Tower | Horizontal with Tower |
| 24-Hour Processing Capacity (Not less than) | 10 tons raw material | 20 tons raw material | 30 tons raw material |
| Working Mode | Intermittent Operation | Intermittent Operation | Intermittent Operation |
| Working Pressure | Atmospheric Pressure | Atmospheric Pressure | Atmospheric Pressure |
| Oil Yield (Not less than) | 80% | 80% | 80% |
| Power Configuration | 15.0 kW | 20.0 kW | 20.0 kW |
| Cooling Method | Water Cooling | Water Cooling | Water Cooling |
| Cooling Water Consumption (T/h) | — | — | — |
| Transmission Method | — | — | — |
| Heating Method | Direct Heating | Direct Heating | Direct Heating |
| Installation Method | Furnace Foundation | Furnace Foundation | Furnace Foundation |
| Noise dB (A) | ≤85 | ≤85 | ≤85 |
| Heat Exchanger | None | None | None |
| Main Machine Dimensions (mm) | 2200*5500 | 2600*6600 | 2800*7700 |
| Main Machine Weight (kg) | 2800 | 3000 | 3200 |
| Manufacturing Cycle | 20 days | 20 days | 20 days |
Equipment work Video>>
Our Crude Oil Distillation Plant provides an efficient and environmentally friendly solution for refining crude oil into high-quality, usable petroleum products. By separating raw crude oil into valuable fractions such as gasoline, diesel, and kerosene, it optimizes resource utilization while minimizing environmental impact. The process helps reduce harmful emissions, supports sustainable energy development, and transforms crude oil into multiple valuable fuels—promoting economic and ecological growth.
If you are interested in exploring a customized project to enhance profitability through crude oil distillation, contact us today. Our professional engineers are ready to design a tailored solution to meet your specific requirements.
About crude oil distillation machine FAQ>>
How do we distill crude oil?
Crude oil distillation is a process that separates the complex mixture of hydrocarbons in raw crude oil into useful fractions based on their different boiling points. The main steps include:
Heating
Crude oil is first heated in a furnace to temperatures around 350–400°C, causing it to vaporize partially.Fractional Distillation Column
The heated vapor enters a tall distillation tower (fractionating column) equipped with trays or packing materials. As the vapor rises, it cools gradually.Separation by Boiling Points
Different hydrocarbons condense back into liquids at various heights within the column, where temperatures correspond to their boiling points:Light fractions like gasoline condense near the top.
Medium fractions such as kerosene and diesel condense in the middle sections.
Heavy fractions and residues remain near the bottom.
Collection
The condensed liquids are collected on trays or in side outlets, then routed for further processing or storage.
This process efficiently converts crude oil into separate products like gasoline, diesel, kerosene, lubricants, and heavy fuel oils, which are then used in various industries and applications.
How many types of distillation are there?
Simple Distillation
Used to separate liquids with significantly different boiling points (usually more than 25–30°C difference).Fractional Distillation
Employed to separate mixtures with closer boiling points by using a fractionating column, commonly used in crude oil refining.Vacuum Distillation
Performed under reduced pressure to distill compounds at lower temperatures, useful for heat-sensitive substances or high-boiling-point materials.Steam Distillation
Uses steam to vaporize components at temperatures below their normal boiling points, often used for extracting essential oils.Azeotropic Distillation
Involves adding another component to break azeotropes (constant boiling mixtures) to improve separation.Extractive Distillation
Uses a solvent to alter relative volatilities and facilitate the separation of close-boiling or azeotropic mixtures.
What is the difference between distilled oil and refined oil?
Distilled Oil
Distilled oil is produced through the process of distillation, where crude oil is heated and separated into various fractions based on boiling points. This process primarily separates the crude mixture into components like gasoline, diesel, kerosene, etc. Distillation is a physical separation method and mainly removes lighter and heavier fractions but doesn’t remove impurities such as sulfur compounds, metals, or other contaminants.
Refined Oil
Refined oil undergoes further refining processes beyond distillation to improve quality and remove impurities. These processes may include:
Hydrotreating or hydrodesulfurization: Removes sulfur and other harmful compounds.
Catalytic cracking: Breaks down heavier molecules into lighter, more valuable products.
Reforming: Improves octane rating of gasoline.
Blending: Combines various fractions and additives to meet product specifications.
Refining results in cleaner, higher-quality fuels and lubricants that meet environmental and performance standards.
Why is vacuum distillation better than simple distillation?
1. Lower Boiling Temperatures:
Vacuum distillation reduces the pressure inside the distillation column, which lowers the boiling points of the liquids being separated. This means you can vaporize and separate high-boiling or heat-sensitive compounds at much lower temperatures than in simple distillation.
2. Prevents Thermal Decomposition:
Because vacuum distillation operates at lower temperatures, it helps prevent thermal cracking or decomposition of delicate or heavy compounds that would degrade at the higher temperatures used in simple distillation.
3. Efficient for High-Boiling Mixtures:
Vacuum distillation is ideal for separating components with very high boiling points that would be difficult or impossible to distill at atmospheric pressure using simple distillation.
4. Improved Product Quality:
Lower temperatures and controlled conditions help maintain the quality and stability of the distilled products, which is especially important in petroleum refining and chemical processing.
What type of distillation is used for crude oil?
Crude oil is a complex mixture of hydrocarbons with a wide range of boiling points. Fractional distillation uses a tall distillation column (fractionating tower) with trays or packing materials to separate these hydrocarbons based on their different boiling points.
As the crude oil vapor rises through the column, components condense at various levels where the temperature matches their boiling points.
Light fractions like gasoline condense near the top.
Medium fractions such as kerosene and diesel condense in the middle.
Heavy fractions and residues collect near the bottom.
This method allows efficient separation of crude oil into multiple useful products like gasoline, diesel, kerosene, lubricants, and heavy fuel oils.
How does crude oil distillation work?
- Heating the Crude Oil
Raw crude oil is first heated in a furnace to around 350–400°C, partially vaporizing it into a mixture of vapor and liquid. Entering the Fractionating Tower
The heated crude oil mixture enters the bottom of a tall distillation column called a fractionating tower.Separation by Boiling Points
Inside the tower, the temperature decreases as the vapor rises. Different hydrocarbon components condense back into liquid at different heights according to their boiling points:Light fractions like gases and gasoline condense near the top.
Medium fractions such as kerosene and diesel condense at middle levels.
Heavy fractions and residue remain at the bottom.
Collection of Fractions
The condensed liquids are collected on trays or in side outlets at different levels. These fractions are then sent for further refining or used as products.
What are the three stages of crude oil distillation?
Preheating and Vaporization
Crude oil is first preheated in a furnace to vaporize it partially, typically reaching temperatures around 350–400°C. This creates a mixture of liquid and vapor ready for separation.Fractional Distillation in the Tower
The heated crude oil enters the fractionating column (distillation tower), where temperature gradients exist—hotter at the bottom and cooler at the top. As the vapor rises, hydrocarbons condense at different heights depending on their boiling points, separating into fractions like gasoline, kerosene, diesel, and heavier residues.Collection and Withdrawal of Fractions
The condensed liquid fractions are collected on trays or in side outlets at different levels of the tower. Each fraction is then directed for further processing, blending, or direct use.
What are the three components of crude oil?
Hydrocarbons
These are the primary constituents of crude oil, composed mainly of hydrogen and carbon atoms. Hydrocarbons exist in various forms such as:Alkanes (Paraffins): Saturated hydrocarbons with single bonds (e.g., methane, propane).
Cycloalkanes (Naphthenes): Saturated ring-shaped hydrocarbons.
Aromatic hydrocarbons: Unsaturated ring compounds like benzene derivatives.
Sulfur Compounds
Naturally occurring sulfur-containing molecules, which need to be removed during refining to reduce pollution and corrosion.Other Elements and Compounds
These include nitrogen, oxygen compounds, trace metals (like nickel and vanadium), and various inorganic salts and water.
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