PATENT CLAIM ANALYSIS

Application Number: 15988909
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-09
Patent Classification: ["208", "113000"]

Abstract:
An apparatus which is an integral hardware consisting of an annular downer reactor and a concentric upflow riser regenerator for catalytic cracking of hydrocarbon feed to is disclosed. The annular downer reactor terminates in annular stripper which is also concentric with the regenerator. The regenerator, reactor and stripper are in fluid connection with each other. The apparatus is highly compact and provides efficient contact between circulating catalyst and hydrocarbon feed. The proposed hardware includes a novel radial distributor for providing improved control and radial distribution of catalyst inside the downflow reactor. The radial distributor has equal numbers of stationary and movable parts placed one after another to cover the entire annular opening at the bottom of the regenerated catalyst vessel. The radial distributor is concentric with regenerator and located between the catalyst holding vessel and the reactor. A process for catalytic cracking using the invented apparatus is also disclosed.

Claim (Index 4):
A process for catalytic cracking of hydrocarbon, comprising:\n using an apparatus for fluid catalytic cracking of hydrocarbon feed, the apparatus including:\n (a) an annular downer reactor, concentric with an up-flow regenerator of circular cross section, which terminates in annular stripper, the stripper being concentric with the regenerator and the regenerator, reactor and stripper being in fluid connection with each other; \n (b) a plurality of conduits equipped with individual slide valve positioned between the stripper and the regenerator; \n (c) a catalyst holding vessel positioned at the top of the reactor containing the regenerator termination device; \n (d) a radial catalyst distributor positioned concentric with the upflow regenerator and located between the regenerated catalyst holding vessel and the annular downer reactor; and \n (e) an angular deflector plate with an angle of inclination varying between 30\u00b0 to 80\u00b0 with horizontal and located below the catalyst distributor and along the outer circumference of the up flow regenerator, to generate a curtain flow of catalyst into the annular downer reactor; \n collecting the regenerated FCC catalyst from the up-flow regenerator in the catalyst holding vessel; controlling the uniform circumferential catalyst flow into the annular downer reactor by the radial catalyst distributor; allowing the uniform circumferential catalyst flow to fall on the angular deflector plate to form a curtain flow of catalyst in to the annular downer reactor; injecting the hydrocarbon feed along with a diluent steam into the curtain flow of catalyst just below the deflector plate using feed injectors and allowing the catalyst, diluent and the feed to move down through the annular downer reactor; recovering the hydrocarbon vapors entrapped in catalyst pores by the use of steam in the stripper; separating the hydrocarbon vapors and diluent from the spent catalyst in the stripper using a separation device; and returning the spent catalyst to the regenerator using one or more conduits equipped with individual slide valves.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 93.0
- Lexical Diversity: 1.95062
- Patent Class: 208.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14388217', '13808835', '10330967', '10621197', '13165140']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7417158990208744
- 35 USC 102 Novelty (BERT): 0.6295602333929098
- Combined Prediction Score: 0.730500332458078
- Mean Citation Score: 374.838342
- Max Citation Score: 551.4490000000002
- Similarity Product: 515.5878230822087

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

Dataset: test