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Welcome to the Process NMR Associates Network
Refinery Product Blending Systems
Full GC-PIONA Carbon Number Analysis Performed by On-Line Process NMR Spectroscopy
Customer Application Note - Steam Cracker Optimization at BASF Ludwigshaven (pdf)
A 60 MHz process FT-NMR spectrometer has been installed on the feedstream to a naphtha cracker in several locations to provide detailed PIONA analysis, every two minutes, for input into APC/optimization packages. The NMR technique utilizes high-resolution FT-NMR proton spectra in conjunction with partial least squares modeling techniques to obtain highly linear and robust predictive models. Modeling requirements are limited and on-line models contain only around 300-500 data points with minimum model maintenance required. Single predictive models are used to predict across the entire variability range of each property.
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