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Product Name
Industrial Continuous Negative-Pressure Complete-set Vacuum Distillation Plant (Vacuum Distillation Plant). It is a multi-stage high-vacuum continuous fractionation equipment. It realizes low-temperature fractionation for high-boiling heavy-duty oil materials and high-viscosity chemical waste liquids, reduces material cracking and coking, and produces high-quality distillate oil. It is suitable for medium- and large-scale oil-regeneration and hazardous-waste disposal projects.

| Technical Parameter of the Pyrolysis plant | |||
| 1 | Suitable Raw Materials | Waste Engine Oil, Fuel Oil, Crude Oil | Waste Engine Oil, Fuel Oil, Crude Oil |
| 2 | Structure | Horizontal Rotation Type | Horizontal Rotation Type |
| 3 | Reactor Size | φ2600×6600mm φ2800×8000mm φ3000×8800mm |
φ1500×2000mm φ1800×4000mm φ2000×600mm |
| 4 | Work Pressure | Normal Pressure | Normal Pressure |
| 5 | Oil Yield | 85%~95% | 85%~95% |
| 6 | Work Pressure | Normal Pressure | Normal Pressure |
| 7 | Power | 15-25kw/H | 15-25kw/H |
| 8 | Heating Method | Indirect Heating | Indirect Heating |
| 9 | Type of Installation | Without Foundation | Without Foundation |
| 10 | Cooling Method | Cycling Water | Cycling Water |
| 11 | Noise dB (A) | ≤ 85 | ≤ 85 |
| 12 | Cooling Method | Cycling Water | Cycling Water |
| 13 | End Product | Non-standard Diesel Oil | Non-standard Diesel Oil |
| 14 | Manpower | 4-6/shift | 2-4/shift |
Features
Multi-stage gradient vacuum fractionation system:
The Vacuum Distillation Plant is equipped with multiple vacuum units to create a step-by-step negative-pressure environment. Different fractions are separated under corresponding vacuum degrees. It realizes distillation of heavy-duty components at relatively low temperatures and avoids high-temperature thermal cracking of materials.
Multi-column series-connected fractionation process:
The Vacuum Distillation Plant adopts a series layout of multiple rectification columns. Each column realizes independent temperature and pressure control. Materials with different boiling points are separated in sequence. Multiple grades of target oil products can be produced simultaneously with high fraction-cutting precision and low impurity content in finished products.
Full-process closed negative-pressure design:
The whole production procedure of the Vacuum Distillation Plant operates in a closed negative-pressure environment with no oil-gas leakage. It cuts the loss of volatile materials, lowers on-site odor and potential safety hazards, and improves the workshop working environment.
Advantage
Low-temperature distillation for higher product quality:
Relying on high vacuum to lower the boiling point of materials, the Vacuum Distillation Plant avoids intense high-temperature heating for raw materials and prevents thermal cracking of oil products. The produced base oil features light color and little colloid, which greatly reduces the load of subsequent refining procedures.
Optimized energy consumption and lower operating costs:
The waste-heat recovery system fully recovers heat from oil and gas and cuts fuel consumption of the thermal-oil furnace. Compared with traditional high-temperature distillation processes, it delivers prominent energy-saving advantages in long-term production.


Safe and eco-friendly closed negative-pressure production:
The whole system runs under closed negative pressure with low risk of oil-gas leakage and little loss of volatile organic compounds. It can easily meet strict environmental-protection emission-control requirements.
Long-term continuous operation: Benefiting from continuous slag-discharge and heat-exchanger anti-fouling design, the unit can run non-stop for dozens of days. It reduces the frequency of shutdown for coke cleaning and fits mass continuous feed-in-and-processing in large-scale factories.
Strong process expandability:
It can be directly connected with post-process procedures such as hydrogenation and clay refining. The complete production line can serve as the core unit for large-scale regenerative oil-refining projects.
Application Scenarios
- Deep-processing and regeneration of waste mineral oil: Vacuum fractionation of waste mineral oil including waste engine oil, gear oil and hydraulic oil to produce high-quality base-oil feedstock for the lubricating-oil regeneration industry.
- Deep upgrading of pyrolysis oil: In-depth vacuum distillation of crude pyrolysis oil from waste tires and waste plastics to separate diesel and fuel-oil fractions, remove colloids and asphaltenes, and greatly improve oil quality and market selling price.
- Fractionation treatment of heavy crude oil and residual oil: Vacuum fractionation of heavy crude oil and refinery residual oil to cut various oil fractions and realize resource utilization of heavy-duty oil materials.
Packing & Shipping
- Pressure-vessel components including rectification columns, heat exchangers and vacuum tanks are treated with sandblasting for anti-corrosion. All nozzles and flanges are sealed and protected by flange cover plates. Large-size column sections are manufactured in segments, bare-packed and fixed on transport supports with anti-collision reinforcement.
- Precision instruments and electrical components such as DCS control systems, vacuum units, high-precision pressure-vacuum transmitters and regulating valves are individually packed in shock-proof and moisture-proof wooden cases filled with cushioning materials, marked with transport warnings including "Keep Dry" and "This Side Up".
- Scattered spare parts including column internals, sealing gaskets, valves, filters and special tools are packed by category. Each package is attached with a parts list for easy checking and counting upon arrival.
- Equipment components are split in compliance with the dimension standards of 40HQ containers.
FAQ
Q1: What is the core difference between a vacuum distillation plant and ordinary distillation equipment?
A: It achieves lowtemperature fractionation by high vacuum. Materials are heated at low temperature to reduce oil cracking and carbonization. It delivers far better product quality than atmospheric distillation and suits largescale projects with high requirements for finishedproduct quality.
Q2: How long can this plant run continuously?
A: On the premise of qualified rawmaterial pretreatment, it can run continuously for 2540 days before shutdown maintenance. Equipped with a continuous slagdischarge structure, it greatly reduces frequent cokecleaning workload.
Q3: How is the vacuum system maintained? Does it have a high failure rate?
A: It is equipped with a multistage combined vacuum unit and an oilgas capture protection unit to block oil mist from entering vacuum pumps and reduce pump wear. With regular maintenance in accordance with the manual, the overall failure rate remains controllable.
Q4: What are the mandatory requirements for rawmaterial pretreatment?
A: Raw materials shall be predehydrated and predeslagged in advance. Excessive water and impurities will undermine vacuum stability. We can provide supporting pretreatment process solutions.
Product Certifications
All core pressure vessels of this Vacuum Distillation Plant are manufactured in accordance with China's domestic GB150 pressure-vessel standards. We hold special-equipment manufacturing licenses for pressure vessels, and third-party inspection reports are issued for every pressure vessel.
Supporting documents for third-party certifications such as CE and SGS are available to satisfy import-review requirements of overseas markets including the EU, the Middle East and Southeast Asia. Complete welding procedures, non-destructive testing reports and material certificates are provided to assist customers in submitting documents for local environmental-impact assessment and safety assessment. The process design of the whole set of equipment complies with relevant industrial specifications for hazardous-waste resource-utilization equipment.
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