PATENT CLAIM ANALYSIS

Application Number: 16386914
Application Type: Utility
Filing Date: 2019-04
Publication Date: 2019-10
Patent Classification: ["208", "200000"]

Abstract:
The invention provides a process for producing low-carbon olefins by gaseous phase catalytic cracking of heavy oil with multi-stages in milliseconds, comprising: a high-efficiency atomizing nozzle sprays the preheated heavy oil into an upper portion of the downflow modification reaction tube, the produced oil mist is mixed with a high temperature heat carrier flowing downward from a return controller for pyrolysis, and then the pyrolysis products are subject to a gas-solid separation at the bottom of the downflow modification reaction tube; then the coked heat carrier obtained by the separation enters into a lower portion of a modification regeneration reactor to conduct a regeneration reaction, the obtained regeneration gas and the high temperature heat carrier are subject to a gas-solid separation on the top of the modified regeneration reactor, then the high temperature heat carrier returns to a top of the downflow reaction tube to participate in circulation, the regeneration gas is subject to heat exchange and then output; and the high temperature oil and gas produced by the pyrolysis reaction directly flows into the millisecond cracking reactor and conducts a cracking reaction with the regenerated cracking catalyst and subject to a gas-solid separation; then the cracking catalyst to be regenerated enters a lower portion of the crack regeneration reactor and performs a regeneration reaction, the obtained flue gas and the high temperature crack catalyst are subject to a gas-solid separation at the top of the crack regeneration reactor, the high temperature crack catalyst returns to the millisecond cracking reactor to participate the circulation reaction, the flue gas is subject to heat exchange and then output; the crack oil and gas produced by the cracking reaction enter into the subsequent separation devices to separate out the low carbon olefins.

Claim (Index 1):
A process for producing low-carbon olefins by gaseous phase catalytic cracking of heavy oil with multi-stages in milliseconds, wherein:\n 1) a high-efficiency atomizing nozzle sprays the heavy oil preheated to 150\u00b0 C.-350\u00b0 C. from a feed inlet of a downflow modification reaction tube into an upper portion of the downflow modification reaction tube, the produced oil mist is mixed with a high temperature solid heat carrier at a temperature ranging from 650\u00b0 C.-1,200\u00b0 C. flowing downward from a first return controller for milliseconds, so as to heat, vaporize and pyrolyze the oil mist and obtain an oil and gas and a solid heat carrier to be regenerated, the pyrolysis reaction temperature is within a range of 480\u00b0 C.-850\u00b0 C.; 2) the oil and gas as well as the solid heat carrier to be regenerated flow rapidly and downward to a first rapid gas-solid separator at the bottom of the downflow modification reaction tube to carry out a gas-solid separation to obtain a coked solid heat carrier to be regenerated and a high temperature oil and gas; 3-1) the coked solid heat carrier to be regenerated flows through a first flow controller and enters into a lower portion of a modification regeneration reactor to conduct a regeneration reaction with a regeneration agent, the temperature of the regeneration reaction is within a range of 680\u00b0 C.-1,250\u00b0 C.; then the regeneration gas and high temperature solid heat carrier produced by the regeneration reaction are subject to a gas-solid separation in a first gas-solid separator on top of the modification regeneration reactor, then the high temperature solid heat carrier with a carrier/oil ratio of 1-14 passes through the first return controller and flows into a top of the downflow modification reaction tube and enter into the downflow modification reaction tube so as to participate in circulation and cracking of the heavy oil; the regeneration gas from the first gas-solid separator is subject to heat exchange and then output; 3-2) the high temperature oil and gas from the first rapid gas-solid separator is not condensed but directly flowing in the gaseous phase into a millisecond cracking reactor and mixing with a regeneration cracking catalyst having a temperature of 600\u00b0 C.-850\u00b0 C. to carry out a gas phase catalytic cracking reaction, the cracking reaction temperature is within a range of 530\u00b0 C.-750\u00b0 C., then a cracking oil and gas and a cracking catalyst to be regenerated produced by the cracking reaction are subject to gas-solid separation in milliseconds; 4-1) the cracking catalyst to be regenerated flows through a second flow controller and enters a lower portion of the crack regeneration reactor and performs a regeneration reaction with air, the temperature of the regeneration reaction is 630\u00b0 C.-900\u00b0 C., a flue gas and a high temperature crack catalyst produced by the regeneration reaction are subject to a gas-solid separation in a second gas-solid separator at the top of the crack regeneration reactor; the high temperature crack catalyst with a catalyst/oil ratio of 1-8 passes through a second return controller and flows into the millisecond cracking reactor to participate the circulation reaction, and the flue gas is subject to heat exchange and then output; 4-2) the cracking oil and gas produced by the cracking reaction enter into the subsequent separation devices to separate out the low carbon olefins and aromatic hydrocarbons.

Metadata:
- Claim Count in Document: 20.0
- Percentile: 100.0
- Lexical Diversity: 3.13402
- Patent Class: 208.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['16386872', '12666129', '13111437', '15507899', '14050708']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7721832486739416
- 35 USC 102 Novelty (BERT): 0.6370653737727459
- Combined Prediction Score: 0.7586714611838221
- Mean Citation Score: 389.683612
- Max Citation Score: 579.4181
- Similarity Product: 533.6964289015053

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

Dataset: test