PATENT CLAIM ANALYSIS

Application Number: 15861105
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["208", "309000"]

Abstract:
Methods of extracting 1-4 cycle heterocyclic compounds and 2-5 cycle polynuclear aromatic hydrocarbons from a hydrocarbon feedstock are described. The methods include providing a hydrocarbon feedstock containing crude oil fractions, and determining an A/R ratio and an asphaltene concentration of the hydrocarbon feedstock. Based upon the A/R ratio and the asphaltene concentration, the treatable hydrocarbon feedstock undergoes one or more of cracking and fractionating. Subsequently, at least one targeted portion of the heterocyclic compounds is extracted from the fractionated stream with an aqueous solvent. A stream containing the 2-5 cycle polynuclear aromatic hydrocarbons is transferred to an extractor and the 2-5 cycle polynuclear aromatic hydrocarbons are extracted with a solvent system comprising an aprotic solvent.

Claim (Index 10):
The method of  claim 1 , in which extracting at least one targeted portion of the 1-4 cycle heterocyclic compounds from the second fractionated stream comprises:\n extracting a first targeted portion of the 1-4 cycle heterocyclic compounds having a first polarity in a first extraction vessel operating at a first pressure; extracting a second targeted portion of the 1-4 cycle heterocyclic compounds in a second extraction vessel after extracting the first portion, the second extraction vessel operating at a second pressure greater than the first pressure, the second portion of the heteroatom compounds having a second polarity that is less than the first polarity; and extracting a third targeted portion of the 1-4 cycle heterocyclic compounds in a third extraction vessel after extracting the second portion of the 1-4 cycle heterocyclic compounds, the third extraction vessel operating at a third pressure greater than the first pressure and the second pressure, the third portion of the 1-4 cycle heterocyclic compounds having a third polarity that is less than the second polarity.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 86.0
- Lexical Diversity: 1.95238
- Patent Class: 208.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['14300709', '14617358', '14107471', '15437271', '15220896']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7330696877295635
- 35 USC 102 Novelty (BERT): 0.6603948995691767
- Combined Prediction Score: 0.7258022089135249
- Mean Citation Score: 404.856446
- Max Citation Score: 741.76074
- Similarity Product: 544.3010643255687

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test