Presentation Profile
Eraspec FT-IR_ Fuel Quality Parameters Correlation Studies.
Currently Scheduled: 10/15/2019 - 8:20 AM - 8:45 AM
Room: Wisteria Room
Main Author
Aaron Mendez - Ayalytical Instruments
- Juan Ayala - AYALYTICAL INSTRUMENTS
Abstract:
Univariate methods of analysis are simple but do not readily handle interferences and matrix effects. Multivariate methods which relate results to several parameters are complex in calibration and application scope. They involve mathematical correlation of properties determined by other methods, so, many properties can be determined from a single experiment. Instruments are easy to use, consistent but difficult to validate against similar instruments. ERASPEC from Eralytics is rugged, robust and portable. Primarily it determines the overall absorption spectrum of the sample in the MID IR region, approximately from 450 to 6500 cm -1. After a Fourier transformation of the raw interferogram the spectrum is converted from time domain to frequency domain and plotted against absorption intensities. Since all hydrocarbon types absorb in the MID-IR in a characteristic manner, the absorption spectrum of bands and intensities that follow Beer’s Law can be integrated, compared to spectral data base and related to chemical composition, physical properties and product quality parameters. Only 10 mL of sample is required for the analysis that takes only 60 seconds to complete. ERASPEC, in a single experiment covers the determination of more than 60 sample quality parameters with high precision and high throughput. In this study a total of seven fuel quality parameters such as oxygenates, aromatics, olefins, octane, TAN and viscosity on real world samples have been correlated against classical ASTM standards.
