MAGNETIC IMAGING OF PYROLYSIS FEEDSTOCKS APPLIED TO AGOS

摘要

This work reports on a system for the MMagnetic I agnetic Imaging of P maging Pyrolysis F yrolysis Feedstocks,acronym MIPF (pronounced with P silent), that comprizes three facets. First, samplepreparation incorporates internal standards into the feedstock oils, to enable precise analysisof 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 completeinformation about all types of carbon and hydrogen atoms in a feedstock, and (2) a CanonicalGroups 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 mightpresage its performance in an olefin plant, with overall Gas, RPG and PFO yields related to theIR train, and the yields of specific products, including ethylene and butadiene, related to theCG train.