PATENT CLAIM ANALYSIS

Application Number: 15873421
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-07
Patent Classification: ["502", "300000"]

Abstract:
Embodiments of processes and multiple-stage catalyst systems for producing propylene comprising introducing a hydrocarbon stream comprising 2-butene to an isomerization catalyst zone to isomerize the 2-butene to 1-butene, passing the 2-butene and 1-butene to a metathesis catalyst zone to cross-metathesize the 2-butene and 1-butene into a metathesis product stream comprising propylene and C 4 -C 6  olefins, and cracking the metathesis product stream in a catalyst cracking zone to produce propylene. The isomerization catalyst zone comprises a silica-alumina catalyst with a ratio by weight of alumina to silica from 1:99 to 20:80. The metathesis catalyst comprises a mesoporous silica catalyst support impregnated with metal oxide. The catalyst cracking zone comprises a mordenite framework inverted (MFI) structured silica catalyst.

Claim (Index 13):
The multiple-stage catalyst system of  claim 10  where the isomerization catalyst zone is disposed on a first reactor, the cracking catalyst zone is disposed in a second reactor downstream of the first reactor, and the metathesis catalyst zone is disposed in the first reactor downstream of the isomerization catalyst zone or in the second reactor upstream of the cracking catalyst zone.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 86.0
- Lexical Diversity: 2.03226
- Patent Class: 502.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['15866772', '15859794', '15398196', '15190964', '15190950']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.79599594610802
- 35 USC 102 Novelty (BERT): 0.561892289757934
- Combined Prediction Score: 0.7725855804730114
- Mean Citation Score: 376.209084
- Max Citation Score: 423.5694
- Similarity Product: 351.1655905164242

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