Automated approach to onsite fuel stability and compatibility testing by ASTM D4740
Jet Fuel Thermal Oxidation Test
on a new level of safety and efficiency AD Systems has developed the next generation of the TO 10 Jet Fuel Thermal Oxidation Test instrument, optimising all the test conditions specified in ASTM D3241. The TO10 is designed to take the precision of this important test method to the next, until now, unmatched level. All critical test parameters were carefully studied to reduce errors and improve accuracy and reliability. Several innovations (patented), state-of-the-art engineering solutions were implemented reducing uncertainty while bringing ease of operation and low maintenance.
The operator intervention is simplified to an unprecedented level: a dedicated gauge enables error-free heater tube positioning in the test section, which in turn does not require any tools for its assembly and connection to the apparatus. Thanks to the smart software, the operator controls all test conditions and monitors them in real-time from the same touch screen. The test sequence is fully automated from sample aeration till the rapid cooling at the end of the test. No special cleaning is required, and the lab efficiency and productivity drastically improved. If the ITR – DR10 (ASTM D3241 Annex 2) referee automatic tube rater is connected, the transfer of the heater tube scan and its assignment to the oxidation test is automatic. Thus, D3241 test report has full traceability including oxidation test conditions, dP curve, and the deposit thickness profile. With its robustness and reliability, the TO10 is well-suited for any type of application from routine testing to research work on sustainable aviation fuels
Depending on the manufacturing route and blending components availability, the blended marine fuels can be predominantly aromatic or paraffinic in nature, or somewhere in between. While these fuels will be stable at their own, the variation in solvency when blended may lead to increased risk of incompatibility creating serious problems such as plugging of filters and fuel supply systems by flocculated asphaltenes.
In practice for the bunkering, a complete segregation of fuels is not possible. No guarantee that a vessel bunkering a 0.50%S fuel at Rotterdam will then be able to pick up a compatible fuel in Fujairah. Carrying out of compatibility test between the existing and proposed bunker fuel delivery is the only way to provide a realistic estimation of the potential issues that might result.
AD Systems has developed ST10 - a portable, fully automated instrument for stability and compatibility testing of heavy fuel oil in the lab or on-board of a vessel. The ST10 performs a complete automation of the ASTM D4740 method, a simple and efficient test that can be carried out on board of vessel to measure the cleanliness and compatibility of marine fuels, including residual and distillate fuels.
This quick test helps the ship’s crew during subsequent operations such as fuel switching, new bunker preparation, and/or tank transfers for ship stability purposes.
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A new vision for atmospheric
distillation testing AD Systems recently launched the VD10 analyser for automated distillation at atmospheric pressure according to ASTM D86 and similar test methods. The dedicated innovative imaging system (patent pending) brings unmatched automation and precision to this routine analysis of petroleum products.
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The VD10’s high-resolution digital camera visually monitors all phases of sample boiling anticipating and predicting the optimal heater settings to respect standard method conditions for IBP, 5% timings and distillation rate control.
Just put 100 mL sample in the flask, place it on the instrument and press START. Without any need for pre- programming or optimisation, the instrument performs a method-compliant distillation run from the first attempt, even for unknown or difficult samples like biofuels. The user-friendly interface includes all necessary features for operation, result reporting, quality assurance and traceability, diagnostics, and LIMS communication.
High-quality components, precise sensors, and robust construction assure reliability for heavy-duty and safe use with minimum maintenance. The VD10 is arguably the most advanced and innovative instrument for atmospheric distillation available on today’s market.
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