PATENT CLAIM ANALYSIS

Application Number: 15935828
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-07
Patent Classification: ["208", "076000"]

Abstract:
The present invention relates to delayed coking of heavy petroleum residue producing petroleum coke and lighter hydrocarbon products. The invented process utilize a pre-cracking reactor and a reactor furnace for mild thermal cracking of the feedstock and an intermediate separator, before being subjected to higher severity thermal cracking treatment in a coker furnace and a coking drums, resulting in reduction in overall coke yield.

Claim (Index 1):
A method of reducing overall coke yield said method comprising the steps of:\n (a) heating a hydrocarbon feedstock [ 1 ,  20 ,  40 ,  59 ] in a reactor furnace [ 2 ,  21 ,  41 ,  60 ] to obtain hot feed [ 3 ,  22 ,  42 ,  61 ]; (b) introducing the hot feed [ 3 ,  22 ,  42 ,  61 ] of step (a) in a pre-cracking reactor [ 4 ,  23 ,  24 ,  43 ,  62 ] wherein it undergoes mild thermal cracking reactions to obtain an outlet product material stream [ 5 ,  25 ,  44 ,  63 ]; (c) passing the outlet product material stream [ 5 ,  25 ,  44 ,  63 ] of step (b) either directly to a main fractionator [ 69 ] to obtain heavy bottom fraction [ 64 ] or an intermediate separator [ 6 ,  26 ,  45 ] to split outlet product material stream into top fraction [ 7 ,  27 ,  46 ] and bottom product [ 8 ,  28 ,  47 ] and transferring the top fraction [ 7 ,  27 ,  46 ] to a main fractionator [ 13 ,  33 ,  53 ]; (d) heating the heavy bottom fraction [ 64 ] or the heavy bottom [ 8 ,  28 ,  47 ] of step (c) in a coker furnace [ 9 ,  29 ,  49 ,  65 ] to obtain hot hydrocarbon stream [ 10 ,  30 ,  50 ,  66 ]; (e) transferring the hot hydrocarbon stream [ 10 ,  30 ,  50 ,  66 ] of step (d) to preheated coke drums [ 11 ,  31 ,  51 ,  67 ] where it undergoes severe thermal cracking reactions to obtain product vapors [ 12 ,  32 ,  52 ,  68 ]; and (f) passing the product vapors [ 12 ,  32 ,  52 ,  68 ] of step (e) to the main fractionator [ 13 ,  33 ,  53 ,  69 ] to obtain desired product fractions.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 90.0
- Lexical Diversity: 1.41667
- Patent Class: 208.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15237056', '15913401', '14549525', '13533431', '14836792']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7719174269349671
- 35 USC 102 Novelty (BERT): 0.5851020403945797
- Combined Prediction Score: 0.7532358882809284
- Mean Citation Score: 400.021414
- Max Citation Score: 516.41235
- Similarity Product: 367.1216994742334

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

Dataset: test