PATENT CLAIM ANALYSIS

Application Number: 16079362
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["585", "659000"]

Abstract:
The present disclosure provides an air-soak containing regeneration process reducing its time. The process includes (i) removing surface carbon species from a gallium-based alkane dehydrogenation catalyst in a combustion process in the presence of a fuel gas; (ii) conditioning the gallium-based alkane dehydrogenation catalyst after (i) in air-soak treatment at a temperature of 660° C. to 850° C. with (iii) a flow of oxygen-containing gas having (iv) 0.1 to 100 parts per million by volume (ppmv) of a chlorine source selected from chlorine, a chlorine compound or a combination thereof; and achieving a predetermined alkane conversion percentage for the gallium-based alkane dehydrogenation catalyst undergoing the air-soak containing regeneration process using (i) through (iv) 10% to 50% sooner in air-soak treatment than that required to achieve the same predetermined alkane conversion percentage for the gallium-based alkane dehydrogenation catalyst undergoing the air-soak containing regeneration process using (i) through (iii), but without (iv).

Claim (Index 15):
An improved process for dehydrogenating an alkane, the process comprising placing an alkane in operative contact with a heated alkane dehydrogenation catalyst in a reactor, the catalyst comprising a Group VIII noble metal, a Group IIIA metal and, optionally, a promoter metal, removing from the reactor a partially deactivated catalyst, rejuvenating the partially deactivated catalyst in a regenerator, and transporting the rejuvenated catalyst from the regenerator to the reactor, wherein the improvement comprises a combination of treatment within the regenerator and transport of the rejuvenated catalyst from the regenerator to the reactor, the treatment within the regenerator comprising sequential steps:\n a. heating the partially deactivated catalyst to a temperature of at least 660 degrees Celsius using heat generated combustion products obtained by combusting both coke contained on the partially deactivated catalyst and a fuel source other than the coke, the heating yielding a heated, further deactivated catalyst which has an alkane dehydrogenation activity that is less than that of the partially deactivated catalyst; b. subjecting the heated, further deactivated catalyst to a conditioning step which comprises maintaining the heated, further deactivated dehydrogenation catalyst at a temperature of at least 660 degrees Celsius while exposing the heated, further deactivated dehydrogenation catalyst to a flow of an oxygen-containing gas with a chlorine or chlorine containing compound with an overall Cl concentration 0.1 ppm-volume to 100 ppm-volume for a period of time sufficient to yield an oxygen-containing reactivated dehydrogenation catalyst that has an activity for dehydrogenating alkane that is greater than that of either the partially deactivated catalyst or the further deactivated catalyst; and, optionally, c. maintaining the oxygen-containing reactivated catalyst at a temperature of at least 660 degrees Celsius while exposing the reactivated catalyst to a flow of stripping gas that is substantially free of molecular oxygen and combustible fuel for a period of time greater than two minutes and sufficient to remove from the oxygen-containing reactivated dehydrogenation catalyst at least a portion of molecular oxygen trapped within or between catalyst particles and chemisorbed oxygen that is desorbable at the temperature during that period of time and yield a rejuvenated dehydrogenation catalyst; with transport from the regenerator to the reactor being effected by a combination of gravity and motive force imparted by an inert transport gas.

Metadata:
- Claim Count in Document: 35.0
- Percentile: 96.0
- Lexical Diversity: 2.06897
- Patent Class: 585.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15799398', '12717453', '14122201', '10181106', '15561381']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6963551320274812
- 35 USC 102 Novelty (BERT): 0.4981283190772821
- Combined Prediction Score: 0.6765324507324614
- Mean Citation Score: 258.522606
- Max Citation Score: 297.33713
- Similarity Product: 295.03591167021386

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

Dataset: test