PATENT CLAIM ANALYSIS

Application Number: 16060674
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["095", "032000"]

Abstract:
Selective recovery of C2 to C4 hydrocarbons is achieved through the use of a converging-diverging nozzle, or de Laval nozzle. The vapor stream comprising C2 to C4 hydrocarbons is fed into an inlet of a de Laval nozzle having a throat. The vapor stream may have an initial temperature of between 0° C. and 100° C., and an initial pressure of between 200 psig and 500 psig. In the de Laval nozzle, the vapor stream expands after passing through the throat of the de Laval nozzle, producing a vapor stream having reduced temperature and pressure. Then, C2 to C4 hydrocarbons condense from the reduced-temperature vapor stream as liquid droplets, which may be recovered. Fractionation of C2 to C4 hydrocarbons by means of a de Laval nozzle is possible; the technique allows selective recovery of a stream enriched in propene from a mixture of propane and propene.

Claim (Index 7):
The method of  claim 1 , further comprising:\n vaporizing said first enriched liquid to produce a vapor stream enriched in said first hydrocarbon; passing said enriched vapor stream into an inlet of a second de Laval nozzle, said enriched vapor stream having an initial temperature of between \u2212100\u00b0 C. and 150\u00b0 C. and an initial pressure of between 200 psig and a critical pressure of said enriched vapor stream; expanding the enriched vapor stream after the enriched vapor stream passes through a throat of the second de Laval nozzle, producing a reduced-temperature enriched gas stream; condensing a second enriched liquid from the reduced-temperature gas stream, wherein said second enriched liquid is enriched in said first hydrocarbon, relative to said enriched vapor stream; and recovering the second enriched liquid from said gas stream.

Metadata:
- Claim Count in Document: 34.0
- Percentile: 94.0
- Lexical Diversity: 2.20833
- Patent Class: 95.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11883662', '13315278', '13764670', '16074454', '15534832']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7261908321016648
- 35 USC 102 Novelty (BERT): 0.5015190912203378
- Combined Prediction Score: 0.7037236580135322
- Mean Citation Score: 225.093104
- Max Citation Score: 249.15198
- Similarity Product: 181.41006684343816

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

Dataset: test