PATENT CLAIM ANALYSIS

Application Number: 15999414
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-03
Patent Classification: ["422", "198000"]

Abstract:
This application relates to a heat transfer tube, its method of manufacture and its use for thermal cracking hydrocarbon feeds, such as thermal cracking in furnaces. The heat transfer tube comprises a chromium and aluminum carburization-resistant alloy capable of generating a typically continuous aluminum oxide scale under thermal cracking conditions that reduces coking and thereby enhances heat transfer. The carburization-resistant alloy comprises 25.1 to 55.0 wt. % nickel; 18.1 to 23.9 wt. % chromium; 4.1 to 7.0 wt. % aluminum; and iron. Additionally, the carburization-resistant alloy has at least one strengthening mechanism to provide desirable mechanical properties. The carburization-resistant alloy composition is also resistant to the formation of cracks during centrifugal casting.

Claim (Index 14):
A steam cracker furnace, the furnace comprising:\n (a) a convection section which includes at least one convection tube adapted for indirectly heating a mixture comprising hydrocarbon and steam, (b) a radiant section which includes at least one radiant tube adapted to (i) receive the heated mixture, (ii) expose the heated mixture in the radiant tube to steam cracking conditions in order to produce cracked products, and (iii) convey away from the radiant section an effluent comprising at least a portion of the cracked products; wherein,\n (A) the radiant and/or convection tube comprise a protective layer covering \u226570% of the tube's internal surface area, and \n (B) the layer is formed from a carburization-resistant alloy, where the carburization-resistant alloy comprises a) 25.1 to 55.0 wt. % nickel; b) 18.1 to 23.9 wt. % chromium; \n c) 4.1 to 7.0 wt. % aluminum; d) iron; and f) at least one strengthening mechanism comprising:\n (I) carbides strengthening mechanisms comprising 1.0 to 2.0 wt. % of at least one element selected from titanium, zirconium, hafnium, vanadium, niobium, tantalum, molybdenum, tungsten, and 0.4 to 0.6 wt. % carbon; or at least one of: \n (II) gamma prime (\u03b3\u2032) strengthening mechanisms comprising Ni 3 Al and less than 0.15 wt. % carbon; \n (III) solid solution strengthening mechanisms comprising 2.0 to 4.0 wt. % of at least one element selected from vanadium, niobium, tantalum, molybdenum, tungsten, and less than 0.4 wt. % carbon; and \n (IV) oxide dispersoid strengthening mechanisms comprising 0.1 to 1.0 wt. % of at least one element selected from yttrium, lanthanum, cerium, scandium, praseodymium, neodymium and less than 0.4 wt. % carbon.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 96.0
- Lexical Diversity: 1.65789
- Patent Class: 422.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14942730', '14942045', '14178486', '10350685', '12839844']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.809545851402184
- 35 USC 102 Novelty (BERT): 0.5289035223528992
- Combined Prediction Score: 0.7814816184972556
- Mean Citation Score: 292.642946
- Max Citation Score: 402.90503
- Similarity Product: 277.6703248736829

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