PATENT CLAIM ANALYSIS

Application Number: 15970591
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["585", "802000"]

Abstract:
A method for providing upgraded biogas includes feeding a stream of biogas into a biogas upgrading system in order to remove carbon dioxide from the stream of biogas. The biogas upgrading system, which may be based on absorption, adsorption, membrane permeation, and/or cryogenics, provides a stream of upgraded biogas and a tail gas stream. The tail gas stream, which may be CO 2 -rich, is enriched with natural gas so that it is combustible in medium-BTU equipment. The upgraded biogas is used for transportation use and/or the generation of fuel credits. Accordingly, both the tail gas and the upgraded biogas are used effectively and at lower cost.

Claim (Index 65):
A process for providing upgraded biogas comprising:\n i) obtaining biogas; ii) feeding the biogas into a biogas upgrading system, said biogas upgrading system comprising a separating unit, said separating unit comprising a membrane having a feed side and a permeate side and having a first inlet configured to receive the biogas, a second inlet configured to receive natural gas; a first outlet configured to provide upgraded biogas, and a second outlet configured to provide tail gas; iii) passing biogas received at the first inlet across the feed side of the membrane such that some of the carbon dioxide in the biogas permeates through the membrane to the permeate side and such that some methane in the biogas is retained on the feed side and passes to the first outlet; iv) injecting methane from the biogas and provided by the first outlet into a distribution system; v) withdrawing natural gas from a distribution system; vi) passing at least a portion of the withdrawn natural gas across the permeate side of the membrane such that the natural gas is conveyed with carbon dioxide permeate to the second outlet; and, vii) feeding carbon dioxide and natural gas provided by the second outlet to a combustion system.

Metadata:
- Claim Count in Document: 47.0
- Percentile: 93.0
- Lexical Diversity: 1.81818
- Patent Class: 585.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15458760', '12699395', '12454084', '15887588', '15051984']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6803107116398573
- 35 USC 102 Novelty (BERT): 0.6211414174084253
- Combined Prediction Score: 0.6743937822167141
- Mean Citation Score: 330.334812
- Max Citation Score: 612.0327
- Similarity Product: 503.90140819805856

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