PATENT CLAIM ANALYSIS

Application Number: 16069553
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-01
Patent Classification: ["585", "621000"]

Abstract:
The invention relates to a method for producing butadiene from n-butenes having the steps: A) providing a feed gas stream a comprising n-butenes; B) feeding the feed gas stream a comprising the n-butenes and an oxygen-comprising gas into at least one oxidative dehydrogenation zone and oxidatively dehydrogenating n-butenes to butadiene, wherein a product gas stream b comprising butadiene, unreacted n-butenes, steam, oxygen, low-boiling hydrocarbons, high-boiling minor components, possibly carbon oxides and possibly inert gases is obtained; Ca) cooling the product gas stream b by contacting it with a refrigerant and condensing at least a part of the high-boiling minor components; Cb) compressing the remaining product gas stream b in at least one compression stage, wherein at least one aqueous condensate stream c1 and a gas stream c2 comprising butadiene, n-butenes, steam, oxygen, low-boiling hydrocarbons, possibly carbon oxides and possibly inert gases are obtained; Da) separating off non-condensable and low-boiling gas components comprising oxygen, low-boiling hydrocarbons, possibly carbon oxides and possibly inert gases as gas stream d2 from the gas stream c2 by absorbing the C 4  hydrocarbon-comprising butadiene and n-butenes in an absorbent, wherein an absorbent stream loaded with C 4  hydrocarbons and the gas stream d2 are obtained, and Db) subsequent desorption of the C 4  hydrocarbons from the loaded absorbent stream in a desorption column, wherein a C 4  product gas stream d1 is obtained, wherein a polymerization inhibitor is added in step Db) at the column head of the desorption column.

Claim (Index 17):
The method according to  claim 11 , wherein the oxygen-comprising gas fed in step B) comprises at least 90% by volume of oxygen.

Metadata:
- Claim Count in Document: 26.0
- Percentile: 95.0
- Lexical Diversity: 2.76
- Patent Class: 585.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16074454', '15503189', '15033203', '15514077', '15523862']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7295500631438901
- 35 USC 102 Novelty (BERT): 0.5492980982367666
- Combined Prediction Score: 0.7115248666531778
- Mean Citation Score: 358.397706
- Max Citation Score: 416.31207
- Similarity Product: 316.75568382401707

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

Dataset: test