PATENT CLAIM ANALYSIS

Application Number: 16085397
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-03
Patent Classification: ["518", "719000"]

Abstract:
A method for preparing aromatic hydrocarbons with carbon dioxide hydrogenation, comprising: directly converting a mixed gas consisting of carbon dioxide and hydrogen with the catalysis of a composite catalyst under reaction conditions of a temperature of 250-450° C., a pressure of 0.01-10.0 MPa, a feedstock gas hourly space velocity of 500-50000 mL/(h·g cat ) and a H 2 /CO 2  molar ratio of 0.5-8.0, to produce aromatic hydrocarbons. The composite catalyst is a mixture of a first component and a second component. The first component is an iron-based catalyst for making low-carbon olefin via carbon dioxide hydrogenation, and the second component is at least one of metal modified or non-modified molecular sieves which are mainly used for olefin aromatization. In the method, CO 2  conversion per pass may be above 33%, the hydrocarbon product selectivity may be controlled to be above 80%, the methane content is lower than 8%, C 5+  hydrocarbon content is higher than 65% and the proportion of the aromatic hydrocarbons in C 5+  hydrocarbons may be above 63%.

Claim (Index 6):
The method according to  claim 1  comprising mixing the two components of the composite catalyst through one of the following two modes:\n (1) particle mixing mode: respectively weighing iron-based catalyst and molecular sieve catalyst powder; respectively tableting, shaping and screening; and uniformly mixing particles according to a required mass ratio to form a composite catalyst; \n (2) layered packing mode: successively packing required mass of the iron-based catalyst and the molecular sieve catalyst on catalyst bed layers in a top-to-bottom sequence of reactors, wherein two catalyst bed layer components contain or do not contain an isolation layer of inert material, and the mass ratio of the isolation layer of inert material to the active component of the composite catalyst is 0.01-10.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 97.0
- Lexical Diversity: 1.80374
- Patent Class: 518.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['16069262', '16087229', '12166153', '13072683', '15737976']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6551306584577419
- 35 USC 102 Novelty (BERT): 0.5535307374831395
- Combined Prediction Score: 0.6449706663602817
- Mean Citation Score: 238.528066
- Max Citation Score: 313.21063
- Similarity Product: 225.50973967376888

Labels:
- Claim Label 101: 1
- Claim Label 102: 0
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 0
- Label 101 Adjusted: 1

Dataset: test