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Slide info courtesy of SPECTRO Analytical Instruments 91 McKee Dr Mahwah NJ 07430

Analysis of Wear Metals in Lubricating Oil ICP-OES & ASTM Methodology Advanced Research Center 106 Access Rd, Suite 3 Norwood, MA 02602 781-762-2766. Slide info courtesy of SPECTRO Analytical Instruments 91 McKee Dr Mahwah NJ 07430. Main petrochemical applications.

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Slide info courtesy of SPECTRO Analytical Instruments 91 McKee Dr Mahwah NJ 07430

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  1. Analysis of Wear Metals in Lubricating Oil ICP-OES & ASTM MethodologyAdvanced Research Center106 Access Rd, Suite 3Norwood, MA 02602781-762-2766 Slide info courtesy of SPECTRO Analytical Instruments 91 McKee Dr Mahwah NJ 07430

  2. Main petrochemical applications • Blending control of fresh lubricants, greases and control of the additive packages • Used oil analysis • Analysis of sulfur content in crude oil distillates • Analysis of sulfur and trace element content in crude oil and residual heavy fuel • Analysis of trace element contentin diesel/biodiesel fuel 2

  3. What is a lubricating oil • Lubricating oils are formulated with a number of chemicals blended into base oils to provide products that • last longer • keep machinery cleaner • allow the machinery to work better under severe operating conditions • These organic chemicals, better known as additives, contain organometallic and inorganic compounds as their active ingredients • Lubricating oils contain: • 70 - 99 % base oil • 1 - 20 % additive package • 0 - 15 % viscosity index improvers(macromolecular compounds with a molecular weight between 25 000 -100 000) 3

  4. Additive packages Elemental range: • B: up to 6 % • Mg: up to 9 % • Si: up to 13 % • P: up to 11 % • S: up to 45 % • Cl: up to 35 % • Ca: up to 17 % • K: up to 8 % • Zn: up to 12 % • Mo: up to 8.5 % 4

  5. Type of lubricating oils • Engine oils • Ca between 1000 - 2500 ppm • Zn/P between 600 - 2300 ppm • Mo between 0 - 400 ppm • Mg between 0 -1200 ppm • Marine oils • Ca between 2500 - 28000 ppm • Zn/P between 0 - 700 ppm • Industrial oils • All additives lower than 500 ppm • Transmission oils • Variable 5

  6. Used oil analysis • Determination of additive element content • information pertaining to additive depletion in service and possible charging of the system with the wrong oil • ICP-OES analysis according to ASTM D4951 (9 elements) • Determination of wear element content • information pertaining to increased wear rate and possible abnormal operating conditions • ICP-OES analysis according to ASTM D5185 (22 elements) 6

  7. Wear elements: spectroscopic operating baseline For interpretation of the results trend analysis is more important than an individual reading 7

  8. Wear Metals Contaminants Cr B Coolant contaminant, additive Cu Bearings, bushings, additive Additives Sb P Ni Bearings, turbine blades Mo Piston rings, coolant contamination, additive Mo Piston rings, coolant contamination, additive B Coolant contamination, additive Ti Turbine blades (aircraft engines) Ba Condition monitoring elements and their significance 8

  9. Elemental scope for fresh and used lubricants Scope ICP-OES • B, Na, Mg, Si, P, S, Cl, K, Ca, V, Cr, Mn, Fe, Ni, Cu, Zn, Mo, Cd, Sn, Sb, Ba, Pb Scope XRF • B, Na, Mg, Si, P, S, Cl, K, Ca, V, Cr, Mn, Fe, Ni, Cu, Zn, Mo, Cd, Sn, Sb, Ba, Pb • Note: B, Na, and Mg are not as analytically accurate by XRF! 9

  10. PARTICLE COUNTING:Relation between particle size and percentage of recover 10

  11. Please visit our website for additional info!www.advresearchctr.com

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