PATENT CLAIM ANALYSIS

Application Number: 15903431
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-09
Patent Classification: ["423", "230000"]

Abstract:
An adsorbent for removing CO 2  from a gas mixture, the adsorbent comprising alumina and a carbonate compound where the carbonate to alumina IR absorbance intensity ratio is reduced by washing the adsorbent with water. The disclosure also describes a method of making adsorbent particles, process for removing CO 2  from a gas mixture using the adsorbent, and an adsorption unit using the adsorbent.

Claim (Index 8):
A method for making adsorbent particles for use in a process to remove CO 2  from a gas mixture containing CO 2 , the adsorbent particles comprising alumina, one or more alkali metals, and a carbonate compound, the method comprising:\n washing alumina materials which comprise one or more alkali metals and a carbonate compound with water; and drying the washed alumina materials to form the adsorbent particles; wherein the washed and dried adsorbent particles have a carbonate to alumina intensity ratio, R 2 , which is smaller than the carbonate to alumina intensity ratio, R 1 , of the alumina compound which comprises one or more type(s) of alkali metal ions and carbonate ions before washing; and wherein the carbonate to alumina intensity ratio is as determined by Fourier Transform infrared (FTIR) spectroscopy of a crushed sample of the respective washed and dried adsorbent particles and a crushed sample of the alumina materials which comprises one or more alkali metals and a carbonate compound before washing, wherein the carbonate to alumina intensity ratio is a ratio of a peak absorbance intensity for carbonate, AI carbonate , to a peak absorbance intensity for alumina, AI alumina , (i.e. R=AI carbonate /AI alumina )) each peak absorbance intensity obtained after subtracting a baseline signal intensity, where the peak absorbance intensity for alumina, AI alumina , is observed at an FTIR wavenumber in a range from 420 cm \u22121  to 520 cm \u22121 , and the peak absorbance intensity for carbonate, AI carbonate , is observed at an FTIR wavenumber in a range from 1300 cm \u22121  to 1400 cm \u22121 .

Metadata:
- Claim Count in Document: 13.0
- Percentile: 88.0
- Lexical Diversity: 1.60465
- Patent Class: 423.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15461625', '15525498', '11190547', '10518188', '15653822']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7544371663606408
- 35 USC 102 Novelty (BERT): 0.5891191153688369
- Combined Prediction Score: 0.7379053612614604
- Mean Citation Score: 251.02556
- Max Citation Score: 493.2804
- Similarity Product: 465.2443401352643

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