PATENT CLAIM ANALYSIS

Application Number: 15780725
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-12
Patent Classification: ["585", "621000"]

Abstract:
A) provision of a feed gas stream a comprising n-butenes; B) introduction of the feed gas stream a comprising n-butenes and an oxygen-comprising gas into a dehydrogenation reactor and oxidative dehydrogenation of n-butenes to butadiene; C) cooling and compression of the product gas stream b in at least one cooling stage comprising a quenching column and in a compression stage comprising a compressor, with the product gas stream b being brought into contact with at least one circulated coolant; D) separation of incondensable and low-boiling gas constituents as gas stream d2 from the gas stream c2 by absorption of the C 4 -hydrocarbons in at least one circulated absorption medium; E) separation of the C 4  product stream d1 by extractive distillation using a solvent which is selective for butadiene into a stream e1 comprising butadiene and the selective solvent and a stream e2 comprising n-butenes; F) distillation of the stream e 1  comprising butadiene and the selective solvent to give a stream f1 consisting essentially of the selective solvent and a stream f2 comprising butadiene; wherein the measures (i) to (iii) below are carried out (i) avoidance of formation of explosive gas mixtures by monitoring of the oxygen concentration in the oxygen-comprising gas streams fed into the dehydrogenation zone and control of the mass flows of oxygen-comprising gas streams and gas streams comprising hydrocarbons in such a way that no explosive gas mixtures can be formed; (ii) interruption of the introduction of the oxygen-comprising gas mixture into the dehydrogenation zone when a limit value for the oxygen concentration in the dehydrogenation gas mixture is exceeded; (iii) carrying out of the steps A) to F) in apparatuses which are configured so as to be explosion-protected, where liquid-conveying pipes are configured so as to be explosion-protected and gas conduits are configured so as to be detonation-protected.

Claim (Index 22):
The process according to  claim 21 , wherein the ratio of length:diameter is not more than 50:1.

Metadata:
- Claim Count in Document: 56.0
- Percentile: 94.0
- Lexical Diversity: 2.65079
- Patent Class: 585.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15033203', '13752516', '16074454', '15503189', '15523862']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7583174809061245
- 35 USC 102 Novelty (BERT): 0.5340350713223779
- Combined Prediction Score: 0.7358892399477499
- Mean Citation Score: 319.313448
- Max Citation Score: 326.25632
- Similarity Product: 140.18458713190086

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