Patent Document ID: 9625439
Application ID: 13832747
Patent Flag: 1

Claim One:
1. A method for determining the composition of a material from a petroleum stream, comprising: obtaining a reference model of composition (MoC) for the material having a boiling point above about 1000° F. at atmospheric pressure, the reference MoC including a combination of molecular lumps having determined reference percent for each of the molecular lumps; wherein obtaining the reference MoC includes; separating a sample of the material into one or more fractions; obtaining an initial molecular formula distribution within a predetermined threshold from the one or more fractions of the sample of the material; wherein the predetermined threshold is a boiling point temperature of 1250° F.; identifying a correlation between two or more molecular properties of the initial molecular formula distribution; extrapolating, using at least one processor, the initial molecular formula distribution beyond the predetermined threshold along the correlation to construct an extrapolated molecular distribution; and renormalizing the extrapolated molecular formula distribution based on renormalization data obtained from the sample to generate a renormalized molecular formula distribution; measuring at least one selected target property of the material; wherein the at least one target property includes at least one of total weight of the resid in the material, weight percentage of a fraction on total resid basis, weight percentage of hydrogen of a fraction on a total resid basis, weight percentage of sulfur of a fraction on a total resid basis, weight percentage of nitrogen of a fraction on a total resid basis, weight percentage of nickel of a fraction on a total resid basis, weight percentage of vanadium of a fraction on a total resid basis, the fraction being one of the fractions defined by a Heavy Hydrocarbon Model of Composition (HHMoC) protocol; and reconciling, using at least one computer processor, the reference MoC to match the at least one selected target property of the material to obtain a reconciled MoC representative of the composition of the material.