Solution 15.01.15 Sheet 1
Oxidation Stability of Fuels Implication Significance Sufficient oxidation stability of any fuels is a basic requirement to guarantee a failure free operation of the fuel injection equipment The oxidation stability is a very important fuel property to describe the aging behavior of fuels A product with poor oxidation control will suffer in the field, and the consequences will eventually lead to the following: 1. Acidity increase leading to rusting/ corrosion 2. Oil thickening leading to loss of viscosity control 3. Sludging leading to filter or nozzle blocking 15.01.15 Sheet 2
Traditional Oxidation Methods Fuel fame/blends gasoline jet Greases Oil Biodiesel EN 14112 110 C/8 hours Lubricating greases ASTM D942 DIN 51808 100 hours/400 hours RBOT turbine oils ASTM D2272 150 C/delta p = 175 kpa Gasoline ASTM D525 ISO 7536 100 C/6 hours TOST steam turbine oils ASTM D943 max. 10.000 hours Diesel/gasoil ASTM D2274 EN 12205 95 C/16 hours Jet ASTM D873 Diesel/gasoil ASTM D5304 Each Product has its own method: Difficult to operate Inaccurate (D2274) Very long test procedures Cleaning Dangerous (D525) 15.01.15 Sheet 3
RSSOT Rapid Small Scale Oxidation Test Determination of: Oxidation stability of middle distillate fuels (diesel fuels and heater oils with up to 100 % biodiesel) according to ASTM D7545 and EN 16091 Oxidation stability of spark ignition fuels according to ASTM D7525 Procedere: A 5 ml sample is introduced into a pressure vessel which is charged with oxygen to 700 kpa/500 kpa The pressure vessel is heated to 140 C The test is finished, when the break point/ induction period is reached 15.01.15 Sheet 4
Test Principle: Induction Period/Break Point Pressure kpa 1400 1200 1000 p max p max -10 % 800 Induction period 600 400 200 0 0 10 20 30 40 Time min. Definition: Pressure in the test apparatus, which is 10 % below the maximum pressure of the actual test run 15.01.15 Sheet 5
Benefits at a Glance Safety approved by Federal Institute for Materials Research and Testing Correlation to EN 15751, ASTM D525 Compared to the traditional methods PetroOxy is: Faster Smaller More precise Easy to use Easy to clean Offers 10 programs to measure (for gasoline, diesel, biodiesel and blends, grease, custom modes) Memory of 20 results in the unit PC software delivered with the unit For exporting results to PC For real time curve acquisition Small portable instrument 15.01.15 Sheet 6
Traditional Methods vs. PetroOxy Standards Traditional methods EN 14112 (biodiesel), EN 15751 (blends), ASTM D2274/ISO 12205 (diesel) PetroOxy Standards ASTM D7545, EN 16091, IP 595 (diesel, biodiesel, blends) EN 14112/EN 15751 have residues inside tubes that requires frequent change EN 15751 is a long test (spec is 20 h minimum according to EN 590) Precision is poor for low % of biodiesel (below 5 %), (not applicable for blends with biodiesel content < 2 %) ASTM D2274/ISO 12205 is 16 h, so very long test ASTM D2274/ISO 12205 has an extremely poor precision (R = 50 %) ASTM D2274/ISO 12205 is impossible to correlate to any other oxidation stability method Cleaning is a problem for both types of units Fast product release/optimization Short test time: approx. 1 hour Safe handling: only 5 ml sample volume Applicable for all diesel blends down to 0 % FAME Very good repeatability: 2.2 min for a test time of 1 hour Very good reproducibility: 6.5 min for a test time of 1 hour Easy cleaning: just wipe the cell with a soft tissue 15.01.15 Sheet 7
Return on Investment Test ratio (compared to EN 15751) Test value (EUR) Cost saving (EUR per day) Return on investment 1 : 10 40 400 Approx. 2 months 15.01.15 Sheet 8
Traditional Method vs. PetroOxy Standard (Gasoline) Traditional method ASTM D525 PetroOxy Standard ASTM D7525 ASTM D525 is a dangerous test (50 ml sample, 100 C, 700 kpa) Cleaning is a problem Safe handling: only 5 ml sample volume Easy cleaning: just wipe the cell with a soft tissue Most units in the market need a PC to record pressure curve Short test time for fast product release/optimization Some problems with ethanol blends with no end point 360 min ATSM D525 = 19 min PetroOxy Very good repeatability (2.28 min) and reproducibility (5.97 min) 15.01.15 Sheet 9
Return on Investment Test ratio (compared to ASTM D525) Test value (EUR) Cost saving (EUR per day) Return on investment 1 : 10 40 400 Approx. 2 months 15.01.15 Sheet 10
Measuring Petroleum - App Take an interactive trip through the entire petroleum production process and get a complete overview of all Anton Paar solutions, measured samples and applicable standards. Desktop-Version Download from itunes or GooglePlay 15.01.15 Sheet 11