PATENT CLAIM ANALYSIS

Application Number: 15861163
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-10
Patent Classification: ["423", "225000"]

Abstract:
Provided is a renewable high efficient desulfurization process using a suspension bed, comprising mixing the desulfurization slurry with a hydrogen sulfide containing gas to obtain a first mixture, and passing the first mixture into a suspension bed reactor from bottom to top, with controlling the first mixture to have a dwell time of 5-60 minutes in the suspension bed reactor to allow they contact and react sufficiently with each other; and subjecting a second mixture obtained from the reaction to gas liquid separation to produce a rich solution and a purified gas, feeding the purified gas into a fixed bed reactor for carrying out a second desulfurization to obtain a second purified gas, subjecting the resulting rich solution to flash evaporation and then reacting with an oxygen-containing gas for carrying out regeneration. The process may reduce the sulfur content in the hydrogen sulfide containing gas from 2.4-140 g/Nm 3  to 50 ppm or less by using a suspension bed, and further reduce the sulfur content to less than 10 ppm in conjunction with a fixed bed. The invention achieves high efficient desulfurization by combining the suspension bed with the fixed bed connected in series. The present invention has high regeneration efficiency, and the barren solution may be recycled for being used as the desulfurization slurry, without generating secondary pollution, which is very suitable for industrial promotion.

Claim (Index 7):
The renewable high efficient desulfurization process of  claim 1 , wherein, in step (4), the fixed bed reactor comprises a desulfurizer selected from a group consisting of amorphous iron oxide hydroxide, iron oxide, iron hydroxide, copper oxide, zinc oxide, and any mixture thereof, and wherein the fixed bed reactor has a gas flow rate of from 1 to 20 m/s.

Metadata:
- Claim Count in Document: 11.0
- Percentile: 86.0
- Lexical Diversity: 2.14286
- Patent Class: 423.0
- Transitional Phrase Type: closed
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15861192', '15861166', '13172898', '13172893', '10495250']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8165913702369894
- 35 USC 102 Novelty (BERT): 0.5866065171728392
- Combined Prediction Score: 0.7935928849305744
- Mean Citation Score: 388.564334
- Max Citation Score: 503.24515
- Similarity Product: 417.7627862757445

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