High-resolution NMR chemometric applications

Performance of PLS regression models to predict benzene and total aromatics by GC methods were equally robust. Model maintenance was minimal and the spectrometer operated within validation limits for periods of over a year. 

NMR data. 10.24 shows the performance for toluene prediction from 

Economic analysis performed for refineries in certain markets have calculated that the benefit of being able to increase kerosene and jet fuel production yield was an improvement of 3-6 cents per barrel over previous operational conditions. On an 180000 barrel per day crude unit this equates to a benefit of 2000000-4000000 per year. Several other refiners are utilizing NMR analyzers on the feed and products of crude units for control and optimization, AGIP has an NMR analyzer for monitoring the feed. 

Clean fuels regulations in both the European and American markets have had a substantial impact on a refiner s ability to maximize product draws at the refinery front end. Extremely low sulfur requirements for 

---