PATENT CLAIM ANALYSIS

Application Number: 15762426
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-10
Patent Classification: ["585", "634000"]

Abstract:
Provided is a method for preparing ethylene with improved energy efficiency which can reduce energy due to direct heat exchange between processes.

Claim (Index 1):
A method for preparing ethylene with improved energy efficiency, comprising:\n providing a C 2  compound isolated from a de-ethanizer column to an acetylene converter to convert acetylene of the C 2  compound into ethylene and ethane; transferring the C 2  compound containing ethylene and ethane converted from acetylene to a first C 2  splitter to isolate and discharge a part of the ethylene; and transferring a lower stream containing remaining ethylene and ethane, which are not discharged from the first C 2  splitter, to a second C 2  splitter, to isolate and discharge the ethylene, and converting the remaining C 2  compound containing ethane into ethylene to be recycled, wherein a heat exchanger is installed between the de-ethanizer column and the first C 2  splitter to perform direct heat exchange between processes, a difference in pressure between the de-ethanizer column and the first C 2  splitter to enable the heat exchange is 4.5 kgf/cm 2  G or more, and a concentration of ethylene contained in the lower stream of the first C 2  splitter is 70 to 80 mol %.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 90.0
- Lexical Diversity: 1.04545
- Patent Class: 585.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['11017159', '16331350', '14859870', '11639907', '13070722']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.653390069324348
- 35 USC 102 Novelty (BERT): 0.4557528692752836
- Combined Prediction Score: 0.6336263493194415
- Mean Citation Score: 150.09579399999996
- Max Citation Score: 156.5937
- Similarity Product: 131.12243901152016

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

Dataset: test