PATENT CLAIM ANALYSIS

Application Number: 15895317
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["062", "611000"]

Abstract:
Systems and methods for optimizing the recondensation of boiloff gas in liquid natural gas storage tanks are presented. In especially preferred aspects of the inventive subject matter, BOG from a storage tank is condensed using refrigeration content of a portion of LNG sendout in a direct or indirect manner, and the BOG condensate and LNG sendout portion are combined to form a subcooled stream that is then combined with the balance of the LNG sendout, to be fed to a high pressure pump. Contemplated recondensation operations advantageously occur without using otherwise needed large volume recondensers. Moreover, the condensing and subcooling operations are decoupled from the LNG sendout rate.

Claim (Index 10):
A method of producing a combined sendout stream of liquid natural gas (LNG) and boiloff gas (BOG) condensate from a storage tank configured to provide a BOG stream and a sendout LNG stream, comprising:\n compressing the BOG stream to thereby produce compressed BOG; condensing the compressed BOG with a first portion of the LNG sendout stream to thereby produce an intermediate BOG/LNG product at a first pressure; pumping the intermediate BOG/LNG product to increase a pressure of the BOG/LNG product to a second pressure, wherein the second pressure is higher than the first pressure; subcooling the intermediate BOG/LNG product in response to increasing the pressure to the second pressure to provide a subcooled BOG/LNG stream; combining the subcooled BOG/LNG stream with a second portion of the LNG sendout stream to thereby produce a combined subcooled sendout stream; and feeding the combined subcooled sendout stream to a high pressure pump at a pressure above the suction pressure of the high pressure pump.

Metadata:
- Claim Count in Document: 13.0
- Percentile: 88.0
- Lexical Diversity: 1.61111
- Patent Class: 62.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13685201', '12936070', '15024285', '12281464', '14004669']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8387603924970541
- 35 USC 102 Novelty (BERT): 0.6391941806246693
- Combined Prediction Score: 0.8188037713098156
- Mean Citation Score: 382.998014
- Max Citation Score: 666.72546
- Similarity Product: 558.3707938335014

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