1. FTIR Calibration Curves Oxidative Stability of SBO-based biodiesel Project Status Report Rhet de Guzman and Haiying Tang 03/11/2008

2. FTIR Calibration Curves NextDiesel SBO-based biodiesel NextDiesel WG-based biodiesel BDI YG-based biodiesel Test Blends: – RKA ULSD, B2, B5, B10, B15, B20, and B25

3. FTIR Detection – SBO Blends ULSD SBO

4. FTIR Detection – SBO Blends ULSD SBO 1.Aliphatic HC 2.Alkyl grp – gen 3.Alkyl long chain 4.Carbonyl cmpd 5.Carbonyl cmpd – w/ possibility of ester or ketone 1,2,3 3 2,3 4,5 5 3

5. FTIR Detection – SBO Blends ULSD SBO

6. FTIR Detection – SBO Blends ULSD SBO

7. FTIR Detection – SBO Blends ULSD

8. FTIR Detection – SBO Blends ULSD

9. FTIR Detection – SBO Blends ULSD SBO

10. FTIR Detection – SBO Blends

11. FTIR Calibration Curve – NextDiesel SBO Blends

12. FTIR Calibration Curve – NextDiesel WG Blends

13. FTIR Calibration Curve – BDI YG Blends

14. FTIR Calibration Curves

15. FTIR Detection CEF B20 Test Samples Test AreaResultResult in%SBO test 1.50190.21483521.48%1 1.50170.21480721.48%2 1.51510.2167321.67%3 1.45960.20876320.88%4 1.4530.20781520.78%5 y = 6.9658x + 0.0054 Y=Area, x=blend % X= (Area – 0.0054)/6.9658

16. SBO-based biodiesel Oxidative Stability Anti-oxidants: 1) α-T - α-Tocopherol 2) IB -IONOL BF200 3) BHT -2,6-Di-tert-butyl-4-methylphenol 4) BHA -FCC Butylated hydroxyanisole, 98.5+% FCC 5) DTBHQ -2,5-Di-tert-Butyl-hydroquinone, 99% 6) TBHQ – tert-Butylhydroquinone, 97% 7) PG - Propyll Gallate 8) PY – Pyrogallol, 99% Anti-oxidants in 1000ppm, 500ppm and 250ppm concentrations

17. SBO-based biodiesel Oxidative Stability Results: ClassAnti-oxidant conc 250 PPM 500 PPM 1000 PPM Blank2.52 α-T 2.542.723.01 IB3.023.484.3 BHT2.953.344.32 BHA3.3145.43 DTBHQ2.723.013.55 TBHQ2.913.424.75 PG8.4711.0814.75 PY12.7616.0318.43

18. SBO-based biodiesel Oxidative Stability Results:

19. FASBO-BD SBO-ND C14:00 0 C16:014.1 10.84 C16:10.7 0.47 C18:05.15 4.64 C18:125.29 23.11 C18:248.7 53.73 C18:36.08 7.21 ∑SFA (%)19.2 15.48 ∑UFA (%)80.8 84.52