PATENT CLAIM ANALYSIS

Application Number: 16036471
Application Type: Utility
Filing Date: 2018-07
Publication Date: 2019-08
Patent Classification: ["423", "576400"]

Abstract:
A process is presented where a feed stream containing a hydrogen sulfide and another feed component is introduced into an absorber that the feed stream flows upward from the bottom of the absorber and contacts a liquid treatment solution, where the liquid treatment solution contains a sulfur dye catalyst. The hydrogen sulfide is absorbed into the liquid treatment solution and converted into sulfide ions. The other feed component is removed from the absorber vessel substantially free of the hydrogen sulfide and a spent treatment solution is also removed from the absorber vessel and fed to an oxidation vessel where it is contacted with an oxygen containing gas causing the sulfide ions to oxidize to thiosulfate and converting the spent sulfur dye catalyst to regenerated sulfur dye catalyst. The thiosulfate is recovered, and the regenerated sulfur dye catalyst can be recycled as part of the liquid treatment solution.

Claim (Index 8):
A process to treat a hydrogen sulfide containing stream comprising:\n a) providing a feed stream comprising hydrogen sulfide to an absorber vessel such that the feed stream flows upward from the bottom of the absorber; b) providing a liquid treatment solution to the top of the absorber such the liquid treatment solution mixes with the feed stream in the absorber, where the liquid treatment solution contains a sulfur dye catalyst; c) controlling the residence time of the liquid treatment solution and feed stream within the absorber such that the hydrogen sulfide is absorbed into the liquid treatment solution and converted into sulfide ions; d) removing a spent treatment solution from the absorber vessel, where the spent treatment solution contains the sulfide ions, spent sulfur dye catalyst, and dissolved gas; e) introducing the spent treatment solution into an oxidation vessel; f) removing produced water from an oil and gas well and separating from the produced water an aqueous phase; g) introducing the aqueous phase into the oxidizer vessel; h) introducing an oxygen containing gas into the oxidation vessel to contact the spent treatment solution causing the sulfide ions to oxidize to thiosulfate and to convert the spent sulfur dye catalyst to regenerated sulfur dye catalyst; i) removing excess oxygen containing gas from the oxidation vessel and separately removing from the oxidation vessel a liquid stream of regenerated liquid treatment solution comprising the thiosulfate and the regenerated sulfur dye catalyst; j) recycling the regenerated liquid treatment solution to the absorber; and k) maintaining a predetermined thiosulfate concentration in the regenerated liquid treatment solution by removing a portion of the regenerated liquid treatment solution from the process.

Metadata:
- Claim Count in Document: 30.0
- Percentile: 95.0
- Lexical Diversity: 2.35385
- Patent Class: 423.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['11788738', '13736314', '12913448', '12138260', '11717950']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8018896717930748
- 35 USC 102 Novelty (BERT): 0.4933158341512194
- Combined Prediction Score: 0.7710322880288893
- Mean Citation Score: 251.611462
- Max Citation Score: 256.15335
- Similarity Product: 217.95335698449608

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