PATENT CLAIM ANALYSIS

Application Number: 16142592
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-01
Patent Classification: ["252", "372000"]

Abstract:
A process for producing ammonia synthesis gas from a hydrocarbon-containing feedstock, with steps of primary reforming, secondary reforming with an oxidant stream, and further treatment of the synthesis gas including shift, removal of carbon dioxide and methanation, wherein the synthesis gas delivered by secondary reforming is subject to a medium-temperature shift (MTS) at a temperature between 200 and 350.degree. C., and primary reforming is operated with a steam-to-carbon ratio lower than 2. A corresponding method for revamping an ammonia plant is disclosed, where an existing HTS reactor is modified to operate at medium temperature, or replaced with a new MTS reactor, and the steam-to-carbon ratio in the primary reformer is lowered to a value in the range 1-5-2, thus reducing inert steam in the flow rate trough the equipments of the front-end.

Claim (Index 3):
A method according to  claim 1 , comprising the steps of either:\n keeping the existing vessel of the HTS reactor, replacing the high temperature catalyst with a suitable medium temperature catalyst, such as Cu\u2014Zn catalyst, and providing the vessel with an internal heat exchanger, immersed in the catalyst, or installing a new medium-temperature shift reactor replacing the existing HTS reactor, the new reactor having a suitable catalyst for operation at medium temperature, and an internal heat exchanger immersed in said catalyst.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 97.0
- Lexical Diversity: 1.75
- Patent Class: 252.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13805016', '14380741', '13120396', '14889943', '15104448']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8215944113921656
- 35 USC 102 Novelty (BERT): 0.5139126419026572
- Combined Prediction Score: 0.7908262344432148
- Mean Citation Score: 279.165828
- Max Citation Score: 315.8002
- Similarity Product: 210.55833833374984

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

Dataset: test