PATENT CLAIM ANALYSIS

Application Number: 15897988
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["502", "300000"]

Abstract:
A process of methane catalytic conversion produces olefins, aromatics, and hydrogen under oxygen-free, continuous flowing conditions. Such a process has little coke deposition and realizes atom-economic conversion. Under the conditions encountered in a fixed bed reactor (i.e. reaction temperature: 750-1200° C.; reaction pressure: atmospheric pressure; the weight hourly space velocity of feed gas: 1000-30000 ml/g/h; and fixed bed), conversion of methane is 8-50%. The selectivity of olefins is 30-90%. And selectivity of aromatics is 10-70%. The catalyst for this methane conversion has a SiO 2 -based matrix having active species that are formed by confining dopant metal atoms in the lattice of the matrix.

Claim (Index 1):
A catalyst, comprising:\n a matrix of SiO 2 , Si3N4, SiC, SiCxOy (in which 4x+2y=4), SiOyNz (in which 2y+3z=4), SiCxNz (in which 4x+3z=4), or SiCxOyNz (in which 4x+2y+3z=4), one or more embedded metal dopants confined in the matrix, a plurality of active species, each of the plurality of active species is formed by replacing a Si, C, O, or N atom in the matrix with an atom of metal dopant, wherein an amount of the embedded metal dopant ranges from 0.001 wt % to 5 wt % to of a total weight of the catalyst, wherein x ranges from 0 to 1, y ranges from 0 to 2, and z ranges from 0 to 4/3, wherein the embedded metal dopant is selected from a group consisting of Li, Na, K, Mg, Al, Ca, Sr, Ba, Y, La, Ti, Zr, Ce, Cr, Mo, W, Re, Fe, Co, Ni, Cu, Zn, Ge, In, Sn, Pb, Bi, Mn, Ru, Pt, Au, and mixtures thereof.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 88.0
- Lexical Diversity: 1.59494
- Patent Class: 502.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14003551', '16300188', '14005479', '10395421', '15179478']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7617956504098833
- 35 USC 102 Novelty (BERT): 0.545794114792762
- Combined Prediction Score: 0.7401954968481712
- Mean Citation Score: 257.674064
- Max Citation Score: 399.82275
- Similarity Product: 326.34667941391467

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