(191a) Magnetic Imaging of Pyrolysis Feedstocks Applied to AGOs

Authors: 
Virk, P. S., Massachusetts Institute of Technology


This work reports on a system for the Magnetic Imaging of Pyrolysis Feedstocks, acronym MIPF (pronounced with P silent), that comprizes three facets. First, sample preparation incorporates internal standards into the feedstock oils, to enable precise analysis of the NMR experiments. Second, NMR experiments provide quantitative C13 and H1 spectra, with spectral features elaborated by 1-D and 2-D procedures such as DEPT and HETCOR. Third, data analysis employs (1) an Integral Regions train, which provides coarse but complete information about all types of carbon and hydrogen atoms in a feedstock, and (2) a Canonical Groups train, which provides high-level information about chemical moieties, but detects only ~1/3 of all the atoms in the feedstock, particularly those in normal- and methyl-alkane chains. Examples are presented to illustrate how the MIPF parameters of an AGO feedstock might presage its performance in an olefin plant, with overall Gas, RPG and PFO yields related to the IR train, and the yields of specific products, including ethylene and butadiene, related to the CG train.

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