Presentation Profile
Reducing Mogas Octane Giveaway Via On-line Raman Spectroscopy: A One Year Case Study
Currently Scheduled: 1/18/2018 - 1:30 PM - 1:55 PM
Room: Room 382 A
Main Author
Lee Smith - Process Instruments, Inc.
Abstract:
Reducing octane giveaway within a refinery is an ongoing battle, where the difference between the specification and the measured property directly effects refinery profitability. Octane rating is heavily influenced by butane, aromatic, and olefin levels. Optimizing octane levels within the refinery has to be performed using existing blend stocks that can change daily, and balanced against government regulated properties for Reid Vapor Pressure (RVP), aromatic, and olefin content. Raman spectroscopy offers unique, well defined spectral peaks for key octane enhancers such as alkylate, butane, aromatics, olefins, and oxygenates. This helps explain Raman’s ability to accurately measure octane in gasoline. Incorporating state-of-the-art PLS chemometric modeling in a hierarchical approach allows refiners to optimize model performance throughout their seasonal blends. Incorporating our Raman online monitoring technology has allowed one Chevron oil refinery in Richmond, California, producing 240,000 barrels per day (bpd) to save > $3,000,000 annually in octane giveaway.
