Solutions / A Large Australian Grain & Livestock Farm
Mining & Construction
A Large Australian Grain & Livestock Farm
Large-Scale Agricultural Diesel Purification
Key outcomes
- Protecting High-Value Agricultural Machinery Assets: Ensuring HPCR engines and other precision equipment are free from inferior fuel damage
- Effectively Addressing Fuel Microbial Threats: Filtering out microbial matter and bio-slime generated during high-temperature, high-humidity seasons
- 20m³/h Efficient Fueling: Meeting the fast supply demands of large machinery fleets during the harvest season
Case Study
Stage 1 · Customer Problem
📋 Customer Problem
A large Australian grain and livestock farm operates high-value agricultural machinery with HPCR (High-Pressure Common Rail) engines. During harvest season, equipment downtime directly translates to crop losses, making fuel reliability a business-critical concern:
🦠
Microbial Contamination
Storage tank condensation created an ideal environment for microbial growth (bacteria and fungi at the oil-water interface), producing acidic byproducts and biomass slime.
💧
High-Humidity Water Ingress
Australian climate cycling between hot days and cool nights caused continuous condensation in storage tanks, with free water levels exceeding 200 ppm.
🚜
Harvest Season Pressure
During harvest, machinery runs 24/7. Any fuel-related breakdown means lost harvesting windows and potential crop quality degradation.
🔧
HPCR Injector Vulnerability
Modern agricultural engines with 2,000+ bar injection systems are extremely sensitive to particulate and water contamination, with injector replacement costing $800-3,000 each.
Stage 2 · Fuel Analysis · NEW
🔬 Fuel Analysis
Fuel sampling from the farm's main storage tank revealed significant contamination from microbial activity and condensation:
| Metric | Before Treatment | After Treatment | Improvement |
|---|
| ISO 4406 Cleanliness | ~22/20/17 | 12/9/6 | 5-6 levels ↑ |
| Free Water (ppm) | ~200 | ≤50 | 75% ↓ |
| Microbial Count (CFU/mL) | ~10,000+ | None detected | Eliminated |
| Visual Appearance | Cloudy, darkened, slime deposits | Clear, bright | — |
| TAN (mgKOH/g) | 0.25 | 0.08 | 68% ↓ |
Values are representative based on Australian farm storage conditions (temperature cycling, long-term storage, microbial contamination). The dramatic ISO improvement reflects the membrane's absolute pore geometry and synergistic water removal capability.
Stage 3 · Solution
🛠️ Solution & System Configuration
Jingyuan provided a 20m³/h fuel polishing and purification system configured for continuous kidney-loop operation on the farm's main storage tank:
Membrane
Polymer Rigid Composite, 3 μm nominal
β Value
≥200 at rated pore size
Operating Mode
Kidney-loop polishing, 24/7 during harvest
Water Removal
Oleophilic-hydrophobic synergistic separation
Regeneration
Gas-pulse regeneration (brief 5-15 min safety pause)
Microbial Control
Absolute pore retention + continuous water removal
Monitoring
Differential pressure, water detection alarm
Key design decisions: The 3 μm nominal pore size was selected to capture microbial cells (typically 1-5 μm) and biofilm fragments. Continuous water removal eliminates the water phase that microbes require for growth, providing a dual-action solution: physical retention of existing contamination plus environmental prevention of regrowth.
Stage 4 · Results
📈 Quantified Results
12/9/6
ISO Cleanliness Achieved
0
Harvest Season Breakdowns
75%
Water Content Reduction
| Metric | Before | After | Improvement |
|---|
| ISO 4406 Cleanliness | ~22/20/17 | 12/9/6 | 5-6 levels ↑ |
| Microbial Contamination | 10,000+ CFU/mL | None detected | Eliminated |
| Injector Failures | 2-3 per harvest season | 0 | 100% eliminated |
| Filter Cartridge Replacement | Every 2-3 weeks | 0 (3-year membrane life) | 100% eliminated |
| Harvest Downtime | 12-24 hours per breakdown | 0 hours | 100% eliminated |
The system transformed fuel management from a reactive maintenance burden into a proactive reliability asset. During the most recent harvest season, zero fuel-related equipment breakdowns were recorded. HPCR injector life was extended, and the farm eliminated all filter cartridge procurement costs.
Stage 5 · Lessons Learned · NEW
💡 Lessons Learned
✅
Key Success Factor
The dual-action approach (absolute pore retention + continuous water removal) was critical. Microbial contamination requires eliminating both the microbes and their growth environment. Removing water continuously prevents regrowth, while the 3 μm nominal pores capture existing cells and biofilm fragments.
⚠️
Common Pitfall
Many farms treat microbial contamination with biocide additives alone. While biocides kill microbes temporarily, they leave dead biomass that clogs filters and injectors. The contamination cycle resumes once biocide concentration drops. Physical removal via membrane filtration is the only sustainable solution.
🔄
Replication Advice
Directly applicable to all Australian agricultural operations with long-term fuel storage. The 20m³/h kidney-loop configuration suits typical farm tank sizes (20,000-50,000 L). For larger operations with multiple tank sites, multiple units can be deployed with a shared monitoring dashboard. The solution is also ideal for grain cooperatives and contractors with seasonal fuel demands.
"
Customer feedback
During harvest season, machinery is the lifeblood of the farm. Inferior fuel would bring everything to a halt. Jingyuan's 20m³/h system gives us peace of mind in our operations. We can now quickly refuel harvesters and tractors, with dispatched fuel cleanliness stably meeting requirements and reliable equipment operation.
Mining & Construction
Get a technical solution