Refinery & Oil Depot
Two East China Oil Depots
Regional Energy Hub High-Frequency Quality Control
Key outcomes
- Ultra-High Flow Performance: One station achieves 80m³/h high-speed loading, reaching high-throughput levels
- Eliminating Loading Bottleneck: Effectively alleviates queuing at the loading bay, significantly improving per-vehicle fueling efficiency
- Stable Quality Assurance: Ensures diesel delivered to end customers stably meets National VI standard requirements
Case Study
Stage 1 · Customer Problem
📋 Customer Problem
Two East China oil depots in Zhejiang and Jiangsu provinces serve as core energy transfer nodes in the Yangtze River Delta region. Both depots face the combined challenges of "high load, high quality, high humidity":
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Turnover Efficiency Pressure
Station A's daily dispatch volume required 80m³/h-class throughput. Traditional 30-40m³/h filter units had become a loading bottleneck, creating tanker queuing.
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Secondary Contamination Risk
Long depot pipelines combined with Yangtze River Delta's frequent rainfall and high humidity generate trace rust in storage tanks.
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Cartridge Life Challenge
Under high flow impact, standard cartridges deform or saturate too quickly, requiring frequent replacement and increasing downtime risk.
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High-Standard Delivery
End users are high-end manufacturing and large logistics companies with stringent fuel clarity requirements.
Stage 2 · Fuel Analysis · NEW
🔬 Fuel Analysis
Fuel sampling at both depot loading bays revealed contamination from pipeline transport and high-humidity storage conditions:
| Metric | Before Treatment | After Treatment | Improvement |
|---|
| ISO 4406 Cleanliness | ~20/18/15 | 13/11/9 | 3-4 levels ↑ |
| Free Water (ppm) | ~120 | ≤50 | 58% ↓ |
| Visual Appearance | Slightly cloudy, trace rust | Clear, transparent | — |
| TAN (mgKOH/g) | 0.12 | 0.06 | 50% ↓ |
| Particle Composition | Rust, pipeline sediment, moisture condensate | ≥98% removed at ≥5 μm | 98% ↓ |
Values are representative based on Yangtze River Delta depot conditions (high humidity, long pipeline network, high turnover rate). On-site measurement confirmed ISO 13/11/9 achievement at both stations.
Stage 3 · Solution
🛠️ Solution & System Configuration
Jingyuan customized high-flow industrial purification units for both stations, with selection logic matching each depot's dispatch rhythm:
Station A Model
80m³/h Ultra-High Flow Skid
Station B Model
60m³/h Standardized Module
Membrane
Polymer Rigid Composite, 5 μm nominal
β Value
≥200 at rated pore size
Flow Architecture
Large-flux parallel structure, optimized flow field
Regeneration
Gas-pulse regeneration (brief 5-15 min safety pause)
Monitoring
Digital differential pressure, early warning
Water Removal
Oleophilic-hydrophobic synergistic separation
Key design decisions: Station A's 80m³/h parallel structure maintains low system differential pressure even at ultra-high flow. Station B's high-contaminant-capacity module balances space compactness with efficient performance. Both stations equipped with intelligent health monitoring for cartridge saturation early warning.
Stage 4 · Results
📈 Quantified Results
80
m³/h Peak Flow (Station A)
13/11/9
ISO Cleanliness Achieved
50%
Loading Time Reduction
| Metric | Before | After | Improvement |
|---|
| Loading Flow Rate | 30-40 m³/h (bottleneck) | 60-80 m³/h | 2x ↑ |
| ISO 4406 Cleanliness | ~20/18/15 | 13/11/9 | 3-4 levels ↑ |
| Cartridge Replacement | Every 2-4 weeks | 0 (3-year membrane life) | 100% eliminated |
| Tanker Queuing | Frequent during peak | Eliminated | — |
| Downstream Complaints | Occasional clarity issues | Zero complaints | 100% ↓ |
Both systems' deployment elevated dispatch quality control to an industry-advanced level. Station A's 80m³/h ultra-high flow effectively shortened per-tanker fueling time. The "Clean Diesel" reputation won more downstream premium customer orders for both depots.
Stage 5 · Lessons Learned · NEW
💡 Lessons Learned
✅
Key Success Factor
The ultra-high flow parallel structure design (80m³/h) was the critical improvement. By optimizing internal flow field distribution, the system maintained low differential pressure at extreme flow rates — solving the loading bottleneck that traditional 30-40m³/h units could not overcome.
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Common Pitfall
High-turnover depots often accept cartridge replacement as "normal maintenance." In reality, frequent replacement under high-flow conditions causes cartridge deformation, quality lapses between replacements, and hidden downtime costs. Membrane filtration with gas-pulse sequential regeneration eliminates this reactive cycle entirely.
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Replication Advice
Directly applicable to all high-turnover depots in the Yangtze River Delta and Pearl River Delta regions with >50m³/h dispatch needs. The 80m³/h parallel design can be scaled to 120m³/h for mega-depots by adding additional module groups. The intelligent monitoring system enables predictive maintenance across multi-depot fleets.
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Customer feedback
In the Yangtze River Delta's high-speed logistics system, efficiency is paramount. Jingyuan's 80m³/h and 60m³/h units enabled us to effectively improve efficiency while ensuring quality. These systems are an important guarantee for us to provide "high-quality fuel" to the Yangtze River Delta region.
Refinery & Oil Depot
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