Shenkai SKY2102ZP Automated Fuel Blending System for Octane and Cetane Standard Preparation

Overview

The Shenkai SKY2102ZP Automated Fuel Blending System is a benchtop precision instrument engineered for the gravimetric preparation of reference fuel blends used in standardized octane and cetane number determination. It operates on the principle of mass-based blending—leveraging high-resolution dynamic electronic weighing technology to dispense precise proportions of primary hydrocarbon reference fuels (e.g., iso-octane, n-heptane, heptamethylnonane, cetane) into homogeneous mixtures that meet exact compositional specifications defined by international test methods. Unlike volumetric dispensers, which are susceptible to temperature-induced density variations and viscosity-related flow errors, this system ensures traceable, reproducible blend accuracy directly traceable to SI mass units. Designed for routine use in petroleum product testing laboratories—including refinery QC labs, third-party certification facilities, and national metrology institutes—the SKY2102ZP eliminates manual pipetting and hand-mixing, thereby reducing operator exposure to neurotoxic and carcinogenic hydrocarbon solvents while maintaining full compliance with ASTM, ISO, EN, and GB regulatory frameworks.

Key Features

• Gravimetric blending architecture with integrated high-precision dynamic electronic balance (resolution ≤0.01 g), enabling direct mass-based formulation aligned with ASTM D2699/D2700/D613 requirements
• 10″ industrial-grade color touchscreen interface with intuitive, menu-driven workflow navigation—designed for glove-compatible operation and minimal training overhead
• Modular reservoir configuration supporting up to six independent 10 L fuel storage tanks, each programmable with custom physical parameters (density, vapor pressure, flash point)
• Automated sequence control: software calculates required mass fractions based on target ON/CN values, dynamically adjusts dispensing order, and validates final blend mass against tolerance thresholds
• Real-time reservoir level monitoring with visual status indicators and low-level alerts to prevent run-dry conditions during extended unattended operation
• Built-in audit trail functionality with timestamped event logging (blend ID, operator ID, raw material lot numbers, mass readings, environmental conditions)

Sample Compatibility & Compliance

The SKY2102ZP accommodates standard reference hydrocarbons including iso-octane (2,2,4-trimethylpentane), n-heptane, toluene, 2,2,4,4,6,8,8-heptamethylnonane (HMN), cetane (n-hexadecane), and 1-methylnaphthalene. All fluid handling pathways are constructed from chemically resistant materials (e.g., PTFE-lined stainless steel, fluoropolymer tubing) compatible with aromatic and aliphatic hydrocarbons. The system satisfies critical regulatory alignment requirements: it supports GLP-compliant data integrity through secure user authentication, electronic signatures, and immutable audit logs; meets FDA 21 CFR Part 11 readiness via optional validation packages; and fully implements measurement uncertainty reporting per ISO/IEC 17025 Annex A.5 for accredited calibration laboratories.

Software & Data Management

The embedded firmware includes a dedicated blending management suite with configurable method templates for RON, MON, and CN protocols. Each method stores default density corrections, temperature compensation coefficients, and purity adjustment factors. Data output conforms to ASTM E1382-compliant CSV and XML formats, enabling seamless ingestion into LIMS platforms such as Thermo Fisher SampleManager, LabVantage, or STARLIMS. Internal storage retains ≥10,000 complete blend records with metadata (date/time, operator, raw material IDs, mass deviations, pass/fail flags). Optional Ethernet/Wi-Fi connectivity enables remote diagnostics, firmware updates, and centralized fleet monitoring across multi-site laboratory networks.

Applications

• Preparation of primary reference fuels for ASTM D2699 (RON), D2700 (MON), and D613 (CN) engine testing
• Generation of secondary calibration standards for FTIR, NIR, and GC-based octane/cetane analyzers
• Validation and verification of automated analyzer performance per ISO 8792 and ASTM D7371
• Supporting round-robin interlaboratory studies under ISO/IEC 17043 proficiency testing schemes
• Reproducible formulation of surrogate fuel blends for combustion research and engine development programs

FAQ

Does the SKY2102ZP support automatic density correction for temperature fluctuations during blending?
Yes—users can input temperature-dependent density curves for each reference fuel, and the system applies real-time corrections using built-in PT100 sensor inputs.
Can the system be validated for GMP/GLP-regulated environments?
Yes—full IQ/OQ/PQ documentation packages, along with 21 CFR Part 11-compliant electronic signature modules, are available upon request.
Is remote software update capability included?
Standard Ethernet connectivity enables secure over-the-air firmware updates and diagnostic telemetry without local IT intervention.
What safety certifications does the instrument carry?
It complies with IEC 61010-1 (Electrical Safety for Laboratory Equipment) and carries CE marking for EMC and Low Voltage Directive conformity.
How is traceability maintained for reference material usage?
Each blend record captures batch numbers, certificate of analysis references, and expiration dates for all consumed reference fuels, ensuring full chain-of-custody documentation.