———— Advanced Base Oil Refining Equipment
Base Oil Solvent Extraction Plant
The VBOLT Base Oil Solvent Extraction Plant is engineered to upgrade vacuum-distilled base oil through selective solvent extraction. The integrated system removes undesirable aromatic compounds and other extractable impurities, improving base oil color, oxidation stability, and overall product quality while enabling efficient solvent recovery and continuous industrial operation.
24
Hours of Continuous Operation
99.9%
Typical Solvent Recovery Rate
60℃
Typical Extraction Temperature
4
Core Process Modules
ADVANCED BASE OIL REFINING TECHNOLOGY
Base Oil Solvent Extraction Plant
An integrated base oil upgrading system combining selective solvent extraction, phase separation, solvent recovery, and process automation to improve base oil quality and support efficient industrial operation.
STANDARD REFINING ROUTE
Selective extraction and solvent recovery
DESULFURIZATION ROUTE
Optimized extraction and guality control
Selective Solvent Extraction
Removes targeted aromatic compounds and extractable impurities to improve base oil quality.
Integrated Refining Process
Combines extraction, phase separation, and solvent recovery in a coordinated process.
Efficient Solvent Recovery
Recovers and recycles process solvent to reduce consumption and operating costs.
Custom-Engineered Plant Solutions
Engineered according to feedstock properties, production capacity, and target oil specifications.
Operation
Solvent Option
Automation
Delivery
———— Plant Film · Actual Project
WATCH THE PLANT IN OPERATION
00:45 MIN ·Full Project Film
VBOLT Project Film
Real Equipment · Real Process · Real Operation
———— Plant Film
Base Oil Solvent Extraction Plant
VBOLT's base oil solvent extraction system uses advanced solvent treatment and separation technology to improve regenerated base oil quality. The integrated process features efficient oil-solvent separation and solvent recovery, with customized solutions for different feedstocks and processing requirements.
Feedstock
Vacuum-Distilled Base Oil
Process
Selective Solvent Extraction
Output
Refined Base Oil
Configuration
Modular · Skid-Mounted
———— Product Highlights
Product Highlights
To understand the base oil solvent extraction plant as an industrial equipment product, focusing on solvent refining technology, impurity removal efficiency, solvent recovery performance, and application value for base oil upgrading.
Centrifugal Extraction Technology
The system uses NMP centrifugal extraction to improve mass transfer efficiency in a compact structure, helping remove undesirable components more effectively than traditional tower-type processes.
High Solvent Recovery Efficiency
Vacuum heating and distillation allow efficient solvent separation and recirculation, reducing solvent loss and lowering long-term operating costs.
Cleaner & More Stable Base Oil
The process helps improve oil color, oxidation stability, residual carbon level, and long-term storage behavior without generating acid sludge or large volumes of solid waste.
———— Core Process
Core Process Technology Modules
From intake chemistry stabilization to finished refined output, the industrial footprint follows strict modular controls.
01
NMP selectively removes non-ideal components from base oil.
02
Vacuum separation recovers solvent from raffinate and extract.
03
Superheated steam removes residual trace solvent.
04
Final moisture removal improves product stability.
05
Finished refined base oil is sent to tank storage for use.
———— Process Intelligence
Detailed Process Introduction
A more detailed display of the main process modules, matching product-level technical presentation needs for industrial buyers and investment decision makers.
01 / Solvent Extraction Unit
The Core Separation Stage of Base Oil Solvent Refining
The preheated base oil and NMP solvent enter the centrifugal extractor under controlled temperature conditions of about 60°C. Through counter-current contact and density difference, undesirable components such as asphaltenes, gums and heteroatomic compounds are transferred into the solvent-rich phase.
02 / Solvent Recovery Unit
Recovering NMP for Cost Control and Process Continuity
After extraction, both the refined oil stream and the extract stream contain solvent. The recovery system uses heating and vacuum distillation to separate volatilized NMP from the oil phases. The condensed solvent is returned to storage for recirculation, helping lower solvent consumption and operating cost.
03 / Stripping & Final Solvent Removal
Deep Removal of Residual Solvent for Better Base Oil Quality
Even after vacuum recovery, trace NMP remains dissolved in the refined oil. The stripping stage uses superheated steam and counter-current mass transfer to remove most residual solvent, further optimizing refined base oil purity and market value.
04 / Refined Base Oil Drying
Final Moisture Removal Before Product Storage
The refined base oil enters the drying column after heating, where trace moisture is vaporized and removed. This final step improves product stability, handling quality and storage readiness before the oil is pumped to the tank farm.
———— Technical Charts
Refined Base Oil Quality Improvement
A business-grade data presentation for product upgrading effect, impurity removal, solvent recovery performance and refined oil marketability.
CNY/Ton Operating Cost Benchmark
Solvent Recovery Potential
Typical Extraction Temperature
PLC Controlled Operation
Impurity Removal Structure
Indicative distribution of removed non-ideal components and retained refined oil fraction.
Solvent Recovery Efficiency Curve
Typical cumulative solvent recovery trend across staged treatment.
Quality Improvement by Process Stage
Indicative reduction of color index and residual solvent through extraction, recovery, stripping and drying.
Refined Base Oil Performance Radar
A visual overview of refined base oil performance across clarity, stability and usability indicators.
———— Technical Data
Engineering Information at a Glance
| Model Type | Capacity | Recommended Application | Investment Level | Key Advantage |
|---|---|---|---|---|
| Pilot Unit | 5–10 L / Batch | Lab verification, solvent ratio trial and process validation | Low | Suitable for technology testing before commercial scale deployment |
| Compact Plant | 5 – 10 T / Day | Small recyclers, lubricant workshops and entry-level upgrading projects | Low–Moderate | Compact footprint and lower startup threshold |
| Recommended Standard Plant | 20 – 30 T / Day | Commercial regenerated base oil upgrading and stable continuous production | Moderate | Strong balance between investment, solvent recovery, product quality and output stability |
| Large Scale Plant | 30 – 60 T / Day | Industrial re-refining bases and large regional regeneration projects | High | Higher throughput usually brings stronger long-term profitability and market competitiveness |
Balanced Investment
The 20–30 T / Day configuration fits customers looking for controllable capital input and stable upgrading performance.
Stable Product Upgrading
This model range is widely suitable for continuous refined base oil production with improved clarity and oxidation stability.
Scalable Profit Potential
For customers with stable feedstock and stronger market demand, larger-capacity plants can offer stronger overall profitability.
| Parameter | Typical Value / Range | Performance Impact |
|---|---|---|
| Extraction Solvent | N-Methyl-2-pyrrolidone (NMP) | Selective removal of non-ideal oil components |
| Extraction Temperature | About 60°C | Supports efficient mass transfer and stable separation |
| Solvent Recovery Rate | ≥ 99.9% | Reduces solvent loss and operating cost |
| Operation Mode | 24h PLC Controlled | Supports continuous industrial production |
| Equipment Footprint | Compact centrifugal layout | Smaller than traditional tower extraction systems |
| Pollution Profile | No acid sludge / low solid waste | Improves environmental compliance |
| Target Improvement | Color, residual carbon, odor, oxidation stability | Supports higher-grade refined base oil output |
| Utility Integration | Vacuum, heating, stripping and drying | Enables closed-loop continuous refining operation |
Independently Verified Quality Improvement
The refined oil produced by the plant can be tested by recognized laboratories to verify appearance improvement, solvent removal effect, oxidation stability and residual impurity reduction.
———— Applications & Feedstocks
Applications & Feedstocks
The plant is designed for re-refining companies, lubricant recovery facilities and industrial oil regeneration projects handling various base-oil-related streams.
Upgrading recycled base oil quality for higher-value applications.
Removes gums and oxidation residues before blending or finishing.
Suitable for industrial waste-oil regeneration and base-oil recovery plants.
Supports closed-loop reuse and resource recovery projects.
Used lubricating oils requiring impurity removal and upgrading.
Further upgrading after front-end distillation process.
Selected industrial oil fractions with upgrading value.
Processes targeting better color, stability, and market grade.
———— Cases
Project Cases
Representative overseas cases showing actual model selection, output performance and investment returns.
Vietnam Re-Refined Base Oil Project
Capacity: 30 T / Day
After replacing traditional acid-clay treatment, the project improved product quality, reduced refining cost and achieved environmentally compliant continuous operation.
Before Extraction Condition
Status: Untreated Oil Sample
Untreated oil typically shows darker color, higher residual carbon and weaker oxidation stability, limiting its direct market value.
After Extraction Result
Status: Refined Oil Sample
After extraction, the oil becomes cleaner, lighter in appearance and more suitable for higher-grade regenerated base oil applications.
———— Technical FAQ
Frequently Asked Questions
Common questions from customers evaluating this Base Oil Solvent Extraction Plant as a product purchase.
———— Get My Plant Proposal
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