PATENT CLAIM ANALYSIS

Application Number: 16003716
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2018-11
Patent Classification: ["423", "650000"]

Abstract:
A water gas shift reaction is carried out on a feed gas comprising carbon monoxide to produce carbon dioxide and hydrogen gas. The feed gas is split into multiple input streams flowed into respective reactors coupled in series. Steam is supplied to the input stream fed to the first reactor. The shift reaction is carried out in each reactor, with an overall reduced consumption of steam relative to the amount of gas shifted. The water gas shift reaction may be performed in conjunction with removing acid gas compounds from a process gas such as, for example, syngas or natural gas, by flowing a feed gas into a desulfurization unit to remove a substantial fraction of sulfur compounds from the feed gas and flowing the resulting desulfurized gas into a CO 2  removal unit to remove a substantial fraction of CO 2  from the desulfurized gas.

Claim (Index 1):
A method for removing acid gases from a gas stream, the method comprising:\n flowing a feed gas into a desulfurization unit to remove a substantial fraction of a sulfur compound from the feed gas, wherein the desulfurization unit produces a desulfurized feed gas; flowing the desulfurized feed gas into a CO 2  removal unit to remove a substantial fraction of CO 2  from the desulfurized feed gas; and before or after desulfurizing the feed gas, subjecting the feed gas to a water-gas shift reaction by: splitting a flow of feed gas comprising carbon monoxide (CO) into a plurality of feed gas streams comprising at least a first feed gas stream, a second feed gas stream, and a third feed gas stream; combining the first feed gas stream with a steam stream to produce a first input gas stream; flowing the first input gas stream into a first shift reactor containing a first shift catalyst; reacting the CO with the steam in the presence of the first shift catalyst to produce a first product gas stream comprising carbon dioxide (CO 2 ) and hydrogen (H 2 ); combining the first product gas stream with the second feed gas stream to produce a second input gas stream heated by the first product gas stream; flowing the second input gas stream into a second shift reactor containing a second shift catalyst; reacting the CO of the second input gas stream with the steam in the presence of the second shift catalyst to produce a second product gas stream comprising CO 2  and H 2 ; combining the second product gas stream with the third feed gas stream to produce a third input gas stream heated by the second product gas stream; flowing the third input gas stream into a third shift reactor containing a third shift catalyst; and reacting the CO of the third input gas stream with the steam in the presence of the third shift catalyst to produce a third product gas stream comprising CO 2  and H 2 .

Metadata:
- Claim Count in Document: 56.0
- Percentile: 94.0
- Lexical Diversity: 1.925
- Patent Class: 423.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15521467', '13123746', '13636341', '15315129', '13892681']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.788445836823476
- 35 USC 102 Novelty (BERT): 0.5634448140909578
- Combined Prediction Score: 0.7659457345502242
- Mean Citation Score: 317.4993320000001
- Max Citation Score: 437.378
- Similarity Product: 406.1640763612986

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

Dataset: test