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• Marine Fuel Oil Market Demand
With China's rapid economic development, maritime transport plays a crucial role in cargo transportation. Simultaneously, ship emissions exacerbate air pollution in ports and surrounding areas. Recent years have seen China's environmental, transport, and agricultural/fisheries departments upgrade marine fuel standards. Per the Air Pollution Prevention Law, inland/river-sea vessels must comply with GB 252-2015 General Diesel, requiring sulfur content <10 mg/kg from January 1, 2018. Ocean-going vessels follow GB 17411-2015 Marine Fuels, with minimum sulfur limit of 1000 mg/kg.
• Domestic Fuel Oil Circulation Market DemandIrregular competition and substandard fuels plague China's domestic market. Refineries cutting desulfurization costs release non-compliant fuels, worsening air pollution (sulfur emissions being primary). Regulatory inspections face limited coverage. Some provinces check tanker trucks on highways for S content; others test diesel vehicles to block high-emission trucks using substandard fuel.Both marine fuel and circulation sectors require portable, rapid, precise analyzers for on-site sulfur testing.
Ancoren leverages years of MWD XRF expertise to develop the high-sensitivity MERAK-MINI, meeting rapid fuel oil testing demands.
• High Sensitivity
Portable MERAK-MINI achieves ultra-low detection limits: S LLD: 0.5 ppm, Cl LLD: 0.3 ppm via compact optics and monochromatic excitation.
• Selective Excitation
High-flux doubly curved crystals monochromate/focus intense characteristic X-rays onto samples, exciting light elements while reducing background and enhancing peak-to-background ratios.
• PortabilityMERAK-MINI: 13.5 kg; 440(W)×300(D)×175(H) mm
MERAK-TINY: 8.75 kg; 410(W)×320(D)×165(H) mm
No gas/vacuum accessories—ideal for field analysis.
• High StabilityX-Ray Fixed System (XFS) optics eliminate post-calibration drift, ensuring long-term stability.
• Low Maintenance & ConsumablesNo vacuum films, gas cylinders, or complex maintenance. Only sample cups/films consumed.
• Battery LifeLi-ion battery operates >4 hours per charge.
Detection Limits S LLD: 0.5 ppm (300 s); Cl LLD: 0.3 ppm (300 s)
Range
1.0 ppm – 5% (e.g., sulfur)
Test Time
60-300 s (user-defined)
Repeatability
S r ≤1.0 ppm (5.0 ppm), 0.6 ppm (10 ppm), 20 ppm (5000 ppm)
Compliance
S: ASTM D7039, ISO 20884, NB/SH/T 0842-2017
Cl: ASTM D7536, ISO 15597, NB/SH/T 0977-2019Weight/Dimensions
MERAK-MINI: 13.5 kg; 440(W)×300(D)×175(H) mm
MERAK-TINY: 8.75 kg; 410(W)×320(D)×165(H) mmPower
55 W
Interfaces
Surface touchscreen , Windows OS, USB
Temp. Range
Operation -5°C ~40°C; Storage -20°C ~55°C
Rapid sulfur analysis in marine fuels
—— Portable high-sensitivity XRF with low detection limits
MERAK-MINI delivers convenient, high-accuracy testing for coastal (low-S) and ocean-going (high-S) vessel fuels.
On-Site Sulfur Testing Solution for Diesel Truck/Vessel Pollution Control
Simultaneously meets sulfur limits and methods in GB 252-2015 General Diesel and GB 17411-2015 Marine Fuels, covering inland/river-sea and ocean-going vessels. Features mobile PAD operation, short analysis time, and high precision.
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