PATENT CLAIM ANALYSIS

Application Number: 15765683
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-02
Patent Classification: ["423", "530000"]

Abstract:
The invention is a method and a sulfuric acid plant design for reduction of start-up SO 2 , SO 3  and H 2 SO 4  emissions in sulfuric acid production, in which SO2 is converted to SO 3  in n successive catalyst beds, where n is an integer >1. The final catalytic beds are used as absorbents for SO 2  to SO3 during the start-up procedure, and one or more of the m beds downstream the first bed are purged, either separately or simultaneously, with hot gas, where m is an integer >1 and m<n, during the previous shut-down. Also, one separate purge with hot gas is used on the final bed.

Claim (Index 2):
A method according to  claim 1 , wherein one separate purge with hot gas is used on the bed prior to the final bed, and wherein the gas from the purged bed is fed to the final bed.

Metadata:
- Claim Count in Document: 38.0
- Percentile: 91.0
- Lexical Diversity: 1.86765
- Patent Class: 423.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11273333', '15317523', '12617356', '16098818', '11971948']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7632985214767364
- 35 USC 102 Novelty (BERT): 0.4865329554738
- Combined Prediction Score: 0.7356219648764427
- Mean Citation Score: 145.87072400000002
- Max Citation Score: 152.74419
- Similarity Product: 99.3033668582511

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