Solutions / A Ningxia Petroleum Company Diesel Unloading Purification
Refinery & Oil Depot
A Ningxia Petroleum Company Diesel Unloading Purification
Gas Station Intake Quality Control
Key outcomes
- Extended Tank Cleaning Cycle: Effectively reduces sludge accumulation at the storage tank bottom, extending the tank cleaning cycle
- Fueling Equipment Protection: Effectively protects the fueling machine's precision flow meter and pump head, reducing cartridge replacement frequency
- Efficient Unloading Capability: 40m³/h high-flow design, ensuring efficient execution of tanker truck unloading operations
Case Study
Stage 1 · Customer Problem
📋 Customer Problem
A Ningxia Petroleum Company is a gas station operator in the Ningxia Hui Autonomous Region. In the highly competitive finished fuel retail market, the company is dedicated to attracting truck fleets and private car customers through a differentiated "Clean Fuel" strategy. As a retail terminal at the end of the fuel supply chain, the station faces unique contamination challenges that directly threaten equipment health and consumer trust:
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Secondary Contamination During Unloading
Due to vibration during transport, tanker trucks stir up rust debris and impurities from the tank bottom into the oil flow. If unloaded directly without filtration, these impurities settle at the storage tank bottom and form sludge.
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Windblown Sand Ingress
The Ningxia region experiences frequent windblown sand. Fine particulate matter easily enters the fuel system during gas station loading and unloading operations, compounding contamination.
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Fueling Machine Failures
Unpurified fuel carries impurities through the fueling pump into the fueling machine, causing frequent blockage of the built-in small filter cartridges and even damaging the precision flow meter.
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Consumer Trust Erosion
Excessive fuel impurities cause customer vehicles to experience insufficient power, increased fuel consumption, or engine alarms, directly affecting the station's foot traffic and return rates.
Stage 2 · Fuel Analysis · NEW
🔬 Fuel Analysis
Fuel sampling at the unloading port revealed contamination from tanker truck transport residue and windblown sand ingress characteristic of the Ningxia environment:
| Metric | Before Treatment | After Treatment | Improvement |
|---|
| ISO 4406 Cleanliness | ~20/18/15 | 14/12/10 | 3 levels ↑ |
| Free Water (ppm) | ~150 | ≤50 | 67% ↓ |
| Visual Appearance | Cloudy, particles visible | Clear, transparent | — |
| TAN (mgKOH/g) | 0.12 | 0.07 | 42% ↓ |
| Particle Composition | Rust debris, windblown sand, sludge | ≥98% removed at ≥5 μm | 98% ↓ |
Values are representative based on site conditions (tanker truck unloading operations, Ningxia windblown sand environment). Field testing confirmed visual clarity improvement and compliance with national retail fuel standards.
Stage 3 · Solution
🛠️ Solution & System Configuration
Jingyuan provided the petroleum company with a 40m³/h intake-end dedicated purification solution. The flow rate design matches the tanker truck unloading pump rate, achieving real-time purification without extending unloading time. Two-stage precision filtration ensures the fuel entering the storage tank has a particle count better than national standard requirements.
Model
JY-DL60 (Intake-End Version)
Membrane
Polymer Rigid Composite, 5 μm nominal
β Value
≥200 at rated pore size
Operating Pressure
0.2–0.4 MPa
Regeneration
Gas-pulse regeneration (brief 5-15 min safety pause)
Explosion-Proof
Ex d IIB T4
Monitoring
Differential pressure visual gauge
Key design decisions: The oleophilic-hydrophobic membrane material efficiently intercepts particulate impurities while synergistically removing trace free water, ensuring inbound fuel is clear and transparent. The first stage intercepts large particulate impurities, and the second stage performs micron-level fine filtration. Operators can visually determine cartridge condition through the differential pressure gauge, ensuring safe and efficient intake operations.
Stage 4 · Results
📈 Quantified Results
| Metric | Before | After | Improvement |
|---|
| Fueling Machine Filter Replacement | Every 2–3 weeks | Every 8–10 weeks | 70% ↓ |
| Storage Tank Bottom Sediment | Heavy sludge accumulation | Greatly reduced | — |
| Flow Meter Damage Incidents | 2–3 times/year | 0 times | 100% eliminated |
| Intake Fuel Cleanliness | ~20/18/15 | 14/12/10 | 3 levels ↑ |
| Customer Complaints | Frequent (power loss, alarms) | Negligible | — |
By deploying the Jingyuan intake filtration system, the company achieved "clear at the source, clean in the tank." Gas station feedback shows that since the system went into operation, fueling machine maintenance frequency has significantly decreased, and impurity sediment at the storage tank bottom has been greatly reduced. This "purify upon intake" model not only ensures the health of station equipment but has also become the company's quality hallmark for external promotion, with customer satisfaction and return rates significantly improved.
Stage 5 · Lessons Learned · NEW
💡 Lessons Learned
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Key Success Factor
The "purify upon intake" model was the critical decision. By installing the 40m³/h system directly at the unloading port, impurities are intercepted before they ever enter the storage tank, eliminating the root cause of downstream equipment failures and sludge accumulation.
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Common Pitfall
Many gas stations rely solely on the fueling machine's built-in small filter cartridges as the only filtration barrier. This reactive approach is costly (frequent cartridge replacement), risks flow meter damage, and allows sludge to accumulate in the storage tank, requiring expensive tank cleaning.
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Replication Advice
Directly applicable to all gas stations in windy, dusty, or desert regions (Ningxia, Inner Mongolia, Gansu, Xinjiang). The intake-end mounting design can be adapted for any tanker truck unloading port. For stations with higher throughput, multiple JY-DL60 units can be deployed in parallel at multiple unloading ports.
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Customer feedback
Quality starts at the source. By installing Jingyuan's 40m³/h system at the unloading port, we effectively prevent impurities from entering the storage tank. This not only saves fueling machine maintenance costs but also has become a powerful marketing tool for our "Clean Diesel" sales.
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