PATENT CLAIM ANALYSIS

Application Number: 16297855
Application Type: Utility
Filing Date: 2019-03
Publication Date: 2019-07
Patent Classification: ["422", "650000"]

Abstract:
The present disclosure relates to a single shell open interstage reactor (“SSOI”). The SSOI comprises a first reaction stage, an interstage heat exchanger, an open interstage region, and a second reaction stage. The SSOI may be configured for upflow or downflow operation. Further, the open interstage region of the SSOI may comprise a supplemental oxidant feed. When the open interstage region comprises a supplemental oxidant feed, the SSOI may further comprise a supplemental oxidant mixing assembly. Processes for producing acrylic acid through the oxidation of propylene are also disclosed.

Claim (Index 1):
A process of making acrylic acid comprising:\n a) providing a mixed feed gas comprising propylene to a first shell-and-tube reaction stage, wherein the first shell-and-tube reaction stage comprises a mixed metal oxide catalyst; b) oxidizing the propylene in the first shell-and-tube reaction stage to produce a process gas comprising acrolein; c) cooling the process gas to a temperature ranging from 240\u00b0 C. to 280\u00b0 C. in an interstage heat exchanger; d) passing the cooled process gas through an open interstage region; e) passing the process gas to a second shell-and-tube reaction stage, wherein the tubes of the second shell-and-tube reaction stage have an internal diameter greater than 22.3 mm and wherein the second shell-and-tube reaction stage comprises a mixed metal oxide catalyst; f) oxidizing the acrolein in the second shell-and-tube reaction stage to produce a product gas comprising acrylic acid; and g) transferring the product gas between a reactor outlet and downstream collection and purification equipment using large diameter exit piping having an outlet diameter ratio, Ko, of 0.08 or more.

Metadata:
- Claim Count in Document: 71.0
- Percentile: 99.0
- Lexical Diversity: 1.82456
- Patent Class: 422.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13652522', '15196288', '15825311', '16092094', '11049106']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8288632149708614
- 35 USC 102 Novelty (BERT): 0.6189224790287585
- Combined Prediction Score: 0.8078691413766511
- Mean Citation Score: 443.394154
- Max Citation Score: 606.39703
- Similarity Product: 545.9624663379849

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