PATENT CLAIM ANALYSIS

Application Number: 15953703
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-12
Patent Classification: ["095", "013000"]

Abstract:
Ammonia-adding apparatus and methods for ammonia-based desulfurization use multi-stage control, calculate a theoretical amount of ammonia based on gas amounts provided by an inlet continuous emission monitoring system (CEMS) and an outlet CEMS of the ammonia-based desulfurization device or associated gas amounts, a SO 2  concentration provided by the inlet CEMS, and a predetermined SO 2  concentration of the outlet CEMS. The apparatus and methods calculate a corrected theoretical amount of ammonia using half of the ratio of the actual amount of added ammonia to the actual amount of removed sulfur dioxide as a correction coefficient for the theoretical amount of ammonia; add an ammonia absorbent equivalent to the corrected theoretical amount of ammonia to the ammonia-based desulfurization device through an ammonia metering means and an ammonia control valve, and automatically control the actual ammonia flow rate based on the actual SO 2  concentration and a change trend provided by the outlet CEMS.

Claim (Index 59):
Apparatus for adding ammonia to an absorption solution in a flue-gas desulfurization system, the apparatus comprising:\n an emission monitoring system configured to provide a measure of an output sulfur dioxide characteristic valves configured to:\n add ammonia to the absorption solution at a base rate that is proportional to:\n a) a target sulfur dioxide removal rate; and \n b) a correction coefficient that includes a ratio of cumulative ammonia added to cumulative sulfur dioxide removed; and, \n \n then, control ammonia addition to the absorption solution to a second rate based on the measure of the output sulfur dioxide characteristic; and \n a distributed control system (\u201cDCS\u201d) configured to calculate an amount of required ammonia; wherein the DCS uses a processor to calculate the amount, the processor configured to calculate the amount based on:\n characteristics of flue gas, the characteristics provided by an inlet continuous emission monitoring system (\u201cCEMS\u201d) and an outlet CEMS of the desulfurization system; \n an SO2 concentration provided by the inlet CEMS; and \n a predetermined SO2 concentration of the outlet CEMS.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 91.0
- Lexical Diversity: 2.34783
- Patent Class: 95.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15661186', '15923031', '14829905', '15938272', '15618975']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7634313362549295
- 35 USC 102 Novelty (BERT): 0.5488883046419227
- Combined Prediction Score: 0.7419770330936288
- Mean Citation Score: 261.460336
- Max Citation Score: 411.55978
- Similarity Product: 398.9128385945512

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