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TD-NMR Analysis of Catalytic Cracker Feedstocks

The 19.5 MHz Spintrack NMR analyzer was utilized to study a large series of vacuum gas oils and FCC feeds for which PNA also has laboratory test data.

The analysis was performed on a SpinTrack 19.5 MHz TD-NMR spectrometer – CPMG T2 decays were generated and then that data was processed with a inverse laplace transformation to produce T2 distribution profiles. These T2 distribution profiles are currently being correlated to physical and chemical property data.

NMR Experiment explanation is given below:

The CPMG data obtained on the four samples is shown below:

The T2 distribution profiles obtained by inverse Laplace transformation of the CPMG data are shown below:

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