PATENT CLAIM ANALYSIS

Application Number: 15863618
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-05
Patent Classification: ["423", "212000"]

Abstract:
A system for vaporizing and optionally decomposing a reagent, such as aqueous ammonia or urea, which is useful for NOx reduction, includes a cyclonic decomposition duct, wherein the duct at its inlet end is connected to an air inlet port and a reagent injection lance. The air inlet port is in a tangential orientation to the central axis of the duct. The system further includes a metering valve for controlling the reagent injection rate. A method for vaporizing and optionally decomposing a reagent includes providing a cyclonic decomposition duct which is connected to an air inlet port and an injection lance, introducing hot gas through the air inlet port in a tangential orientation to the central axis of the duct, injecting the reagent axially through the injection lance into the duct; and adjusting the reagent injection rate through a metering valve.

Claim (Index 17):
A method for vaporizing a reagent for NOx reduction in an exhaust of a lean burn combustion source comprising the steps of:\n providing a cyclonic decomposition duct with a longitudinal central axis having an inlet end and an outlet end at each end of the axis, the cyclonic decomposition duct at its inlet end in communication with an air inlet port and an injection lance, introducing a flowing stream of carrier gas through the air inlet port in a tangential orientation to the longitudinal central axis of the cyclonic decomposition duct, injecting the reagent axially through the injection lance into the duct, wherein the reagent is an aqueous urea or aqueous ammonia; providing a metering valve in communication with the injection lance to control an injecting rate of the reagent into the cyclonic decomposition duct; and adjusting the injection rate of the reagent by use of the metering valve; wherein the inlet end, the longitudinal central axis, and the outlet end define an axial flow path for the carrier gas and the reagent passing through the cyclonic decomposition duct; and wherein a gaseous mixture of the carrier gas and vaporized ammonia exits the duct through the outlet end of the duct.

Metadata:
- Claim Count in Document: 53.0
- Percentile: 86.0
- Lexical Diversity: 2.45161
- Patent Class: 423.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14731133', '14047737', '14077978', '14045449', '13863956']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7987727913664527
- 35 USC 102 Novelty (BERT): 0.6329104667432744
- Combined Prediction Score: 0.782186558904135
- Mean Citation Score: 400.078812
- Max Citation Score: 581.2412
- Similarity Product: 575.8528790129425

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