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 11):
The method of  claim 1 , in which the extraction of each targeted portion of the 1-4 cycle heterocyclic compounds from the second fractionated stream comprises:\n feeding into an extraction vessel separately or as a mixture:\n the second fractionated stream; and \n the aqueous solvent, \n whereby the combination of the second fractionated stream with the aqueous solvent in the extraction vessel forms an extraction mixture; \n tuning the aqueous solvent to selectively form solvent complexes with the targeted portion of the 1-4 cycle heterocyclic compounds in the extraction mixture, whereby the extraction mixture separates into at least a 1-4 cycle heterocyclic-compound rich phase and a 1-4 cycle heterocyclic-compound lean phase, the 1-4 cycle heterocyclic-compound rich phase containing the solvent complexes; removing the 1-4 cycle heterocyclic-compound lean phase from the extraction vessel as a 1-4 cycle heterocyclic-compound lean stream; removing the 1-4 cycle heterocyclic-compound rich phase from the extraction vessel as a 1-4 cycle heterocyclic-compound rich stream; and optionally transferring the 1-4 cycle heterocyclic-compound lean stream from the extraction vessel as a feed stream derived from the hydrocarbon feedstock to an additional extraction vessel for extraction of an additional targeted portion of heteroatom compounds from the feed stream.

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): 0.7309050380906116
- 35 USC 102 Novelty (BERT): 0.6672585331235666
- Combined Prediction Score: 0.7245403875939072
- Mean Citation Score: 404.856446
- Max Citation Score: 741.76074
- Similarity Product: 564.1510990058042

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