A METHOD OF CHARACTERIZING HYDROCARBON FEEDS AND PRODUCTS USING INFRA-RED SPECTRA

摘要

THE PRESENT INVENTION IS A METHOD TO DETERMINE THE CHEMICAL CONCENTRATION OF ONE OR MORE OF A NUMBER OF THE CONSTITUENT CLASSES OF A FEED TO A CATALYTIC CRACKING PROCESS THESE CONSTITUENT CLASSES WHICH ARE REFERRED TO AS "LUMPS", INCLUDING 14 DIFFERENT MOLECULAR TYPES IN 4 DIFFERENT BOILING RANGE FRACTIONS. A SPECIFIC LUMP WILL INCLUDE ALL INDIVIDUAL MOLECULAR COMPONENTS WHICH ARE EXPECTED TO REACT IN A SIMILAR WAY IN THE CATALYTIC CRACKING UNIT.