PATENT CLAIM ANALYSIS

Application Number: 16062748
Application Type: Utility
Filing Date: 2018-06
Publication Date: 2019-01
Patent Classification: ["564", "003000"]

Abstract:
A process for the production of formaldehyde-stabilised urea is described comprising the steps of: (a) generating a synthesis gas comprising hydrogen, nitrogen, carbon monoxide, carbon dioxide and steam in a synthesis gas generation unit, (b) subjecting the synthesis gas to one or more stages of water-gas shift in one or more water-gas shift reactors to form a shifted gas; (c) recovering carbon dioxide from the shifted gas in a carbon dioxide removal unit to form a carbon dioxide-depleted synthesis gas; (d) synthesising methanol from the carbon dioxide-depleted synthesis gas in a methanol synthesis unit and recovering the methanol and a methanol synthesis off-gas comprising nitrogen, hydrogen and residual carbon monoxide; (e) subjecting at least a portion of the recovered methanol to oxidation with air in a formaldehyde production unit; (f) subjecting the methanol synthesis off-gas to methanation in a methanation reactor containing a methanation catalyst to form an ammonia synthesis gas; (g) synthesising ammonia from the ammonia synthesis gas in an ammonia production unit and recovering the ammonia; (h) reacting a portion of the ammonia and at least a portion of the recovered carbon dioxide stream in a urea production unit to form a urea stream; and (i) stabilising the urea by mixing the urea stream and a stabiliser prepared using formaldehyde recovered from the formaldehyde production unit, wherein a portion of the synthesis gas generated by the synthesis gas generation unit by-passes either the one or more water-gas shift reactors; the carbon dioxide removal unit; or the one or more water-gas shift reactors and the carbon dioxide removal unit.

Claim (Index 20):
The process according to  claim 1 , wherein the one or more stages of water-gas shift of step (a) comprise a single stage of high temperature shift, a combination of high temperature shift and low temperature shift, a single stage of medium temperature shift, or a combination of medium temperature shift and low temperature shift.

Metadata:
- Claim Count in Document: 39.0
- Percentile: 94.0
- Lexical Diversity: 3.47059
- Patent Class: 564.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15552063', '15552072', '16344610', '13806729', '15541406']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7913033071880896
- 35 USC 102 Novelty (BERT): 0.5881192792904173
- Combined Prediction Score: 0.7709849043983225
- Mean Citation Score: 416.196578
- Max Citation Score: 469.21432
- Similarity Product: 382.12001180766106

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

Dataset: test