PATENT CLAIM ANALYSIS

Application Number: 16323758
Application Type: Utility
Filing Date: 2019-02
Publication Date: 2019-06
Patent Classification: ["423", "243030"]

Abstract:
A system ( 100 ) for producing aqueous sulphuric acid. The system ( 100 ) comprises a first heat exchanger ( 410 ) configured to cool water and/or aqueous sulphuric for producing cooled water and/or cooled aqueous sulphuric acid; a pre-cooling unit ( 200 ) configured to pre-cool some gas containing sulphur trioxide, the pre-cooling unit ( 200 ) comprising an inlet or inlets ( 212, 214 ) for receiving [i] the gas containing sulphur trioxide and [ii] the cooled water and/or the cooled aqueous sulphuric acid, an outlet ( 216 ) for letting out aqueous sulphuric acid and the gas containing sulphur trioxide, and a first nozzle ( 220 ) for spraying the cooled water and/or the cooled aqueous sulphuric acid onto the gas containing sulphur trioxide to cool the gas containing sulphur trioxide. The system further comprises a condensation tower ( 300 ) comprising a first inlet ( 302 ) for receiving the cooled gas containing sulphur trioxide and aqueous sulphuric acid from the pre-cooling unit ( 200 ) and means ( 320 ) for circulating the aqueous sulphuric acid within the

Claim (Index 17):
A system ( 100 ) for producing aqueous sulphuric acid from a sulphur dioxide containing gas of a liquor circulation of a pulp mill ( 600 ), the system ( 100 ) comprising:\n the pulp mill ( 600 ), configured to produce at least some gas containing sulphur dioxide; a pipeline ( 602 ) configured to convey at least some of the gas containing sulphur dioxide to a converter ( 500 ), the converter ( 500 ) comprising:\n an inlet arrangement ( 502 ) for receiving some gas containing at least some sulphur dioxide and some oxygen or some gas containing at least some sulphur dioxide and some other gas comprising oxygen, and \n catalyst ( 510 ) for converting at least some of the sulphur dioxide and the oxygen to sulphur trioxide, \n a pipeline ( 440 ) configured to convey gas containing sulphur trioxide from the converter ( 500 ) to an inlet ( 212 ) of a pre-cooling unit ( 200 ); and a first heat exchanger ( 410 ) configured to cool water and/or aqueous sulphuric acid for producing cooled water and/or cooled aqueous sulphuric acid, wherein:\n the pre-cooling unit ( 200 ) is configured to pre-cool some gas containing sulphur trioxide, the pre-cooling unit ( 200 ) comprising:\n the inlet or inlets ( 212 ,  214 ) for receiving [i] the gas containing sulphur trioxide and [ii] the cooled water and/or the cooled aqueous sulphuric acid, \n an outlet ( 216 ) for letting out aqueous sulphuric acid and the gas containing sulphur trioxide, and \n a first nozzle ( 220 ) for spraying the cooled water and/or the cooled aqueous sulphuric acid onto the gas containing sulphur trioxide to cool the gas containing sulphur trioxide and to react some of the sulphur trioxide with some of the cooled water and/or aqueous sulphuric acid, thereby strengthening or producing some aqueous sulphuric acid; \n \n the system further comprises:\n a pipeline ( 450 ) configured to convey the cooled aqueous sulphuric acid and/or the cooled water from the first heat exchanger ( 410 ) to the pre-cooling unit ( 200 ), \n a condensation tower ( 300 ) comprising:\n a first inlet ( 302 ) for receiving the cooled gas containing sulphur trioxide and aqueous sulphuric acid from the pre-cooling unit ( 200 ), and \n means ( 320 ) for circulating the aqueous sulphuric acid within the condensation tower ( 300 ) by spraying in order to strengthen the aqueous sulphuric acid, and \n \n a channel ( 290 ) configured to convey the aqueous sulphuric acid and the gas comprising sulphur trioxide from the outlet ( 216 ) of the pre-cooling unit ( 200 ) to the condensation tower ( 300 ).

Metadata:
- Claim Count in Document: 2.0
- Percentile: 99.0
- Lexical Diversity: 2.91045
- Patent Class: 423.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['10532326', '12523230', '10230835', '12733314', '13263139']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7851019668617887
- 35 USC 102 Novelty (BERT): 0.4988089693350952
- Combined Prediction Score: 0.7564726671091193
- Mean Citation Score: 224.009612
- Max Citation Score: 251.608
- Similarity Product: 183.7435808744431

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

Dataset: test