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公开(公告)号：US20240307839A1
公开(公告)日：2024-09-19
申请号：US18547031
申请日：2022-03-21
Applicant: Dow Global Technologies LLC
Inventor： Matthew T. Pretz , Adam M. McNeeley , Yang Yang
CPC classification number: B01J8/1809 , B01J8/0055 , B01J8/28 , B01J2208/00548 , B01J2208/027
Abstract: According to one or more embodiments, the flow of catalyst in a fluidized catalytic processing system may be controlled by a method including determining the amount of catalyst present in a first catalyst bed of the fluidized catalytic processing system. The fluidized catalytic processing system may include a first catalyst bed, a second catalyst bed, a third catalyst bed, and a fourth catalyst bed. The method may include comparing the amount of catalyst present in the first catalyst bed with a threshold catalyst amount. When the amount of catalyst present in the first catalyst bed is less than the threshold catalyst amount, the method may include regulating flow of catalyst from the second catalyst bed to the third catalyst bed such that an increased target amount of catalyst is maintained in the second catalyst bed.
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公开(公告)号：US20240075720A1
公开(公告)日：2024-03-07
申请号：US18383653
申请日：2023-10-25
Applicant: Dow Global Technologies LLC
Inventor： Rahul Sharma , Jeffrey D. Weinhold , Phillip D. Hustad , Megan E. Donaldson , Xiaoyong Li , Joseph C. Neuman , Yang Yang
CPC classification number: B32B27/08 , B32B7/12 , B32B27/283 , B32B27/32 , B32B27/36 , C08G81/024 , B32B2250/24 , B32B2270/00 , B32B2307/31 , B32B2307/518 , B32B2307/746 , B32B2439/70 , B32B2553/00 , Y10T428/31663
Abstract: The present disclosure provides a multilayer film. The multilayer film includes at least two layers including a sealant layer and a second layer in contact with the sealant layer. The sealant layer contains (A) a first ethylene-based polymer having a density from 0.900 g/cc to 0.925 g/cc and a melt index from 0.5 g/10 min to 30 g/10 min; and (B) a polyethylene-polydimethylsiloxane block copolymer having a weight average molecular weight from 1,000 g/mol to 10,000 g/mol. The second layer contains a second ethylene-based polymer.
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Patent Agency Ranking
公开(公告)号：US20240051901A1
公开(公告)日：2024-02-15
申请号：US18257895
申请日：2021-12-15
Applicant: Dow Global Technologies LLC
Inventor： Lin Luo , Yang Yang , Adrianus Koeken , Brien Stears , Luis Bollmann , Andrzej Malek , Brian W. Goodfellow
CPC classification number: C07C5/3337 , B01J23/62 , B01J21/04 , B01J23/96 , B01J38/30 , B01J38/02 , C07C2523/62
Abstract: According to one or more embodiments of the present disclosure, a method for producing olefins includes contacting a hydrocarbon-containing feed with a catalyst in a reactor portion of a reactor system to form an olefin-containing effluent, separating at least a portion of the olefin-containing effluent from the catalyst, passing the catalyst to a catalyst-processing portion of the reactor system and processing the catalyst to produce a processed catalyst and a combustion gas, passing the processed catalyst from the catalyst-processing portion to the reactor portion, and introducing a combustion additive to the reactor system when the combustion gas comprises one or more hydrocarbons in an amount greater than 5% of an LFL of the combustion gas at a temperature and pressure of the catalyst processing portion. The catalyst may include from 1 ppmw to 150 ppmw platinum. The combustion additive may include from 150 ppmw to 1,000 ppmw platinum.
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公开(公告)号：US20240050927A1
公开(公告)日：2024-02-15
申请号：US18257908
申请日：2021-12-15
Applicant: Dow Global Technologies LLC
Inventor： Lin Luo , Yang Yang , Adrianus Koeken , Brien Stears , Luis Bollmann , Andrzej Malek , Brian W. Goodfellow
CPC classification number: B01J23/62 , B01J21/04 , C07C5/3337 , C07C2523/42 , C07C2523/08
Abstract: According to one or more embodiments of the present disclosure, a catalyst system useful for dehydrogenation includes from 98 vol. % to 99.95 vol. % of a catalyst and from 0.05 vol. % to 2 vol. % of a combustion additive. The catalyst may include from 1 ppmw to 150 ppmw platinum, gallium, and a support material. The combustion additive may include from 150 ppmw to 1,000 ppmw platinum, gallium, and a support material. The combustion additive may include at least 1.1 times greater platinum than the catalyst.
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公开(公告)号：US20240100510A1
公开(公告)日：2024-03-28
申请号：US18257909
申请日：2021-12-15
Applicant: Dow Global Technologies LLC
Inventor： Lin Luo , Yang Yang , Matthew T. Pretz
CPC classification number: B01J23/62 , B01J35/40 , C07C5/325 , C07C2523/08 , C07C2523/42 , C07C2523/62
Abstract: According to one or more embodiments of the present disclosure, a fluidization promoter useful for dehydrogenation includes from 0.1 wt. % to 10 wt. % gallium, from 5 ppm to 500 ppm platinum, less than 5 wt. % alkali metal or alkaline earth metal, and a support material. A median particle size of the fluidization promoter is from 20 μm to 50 μm. Catalyst systems useful for dehydrogenation and methods for producing olefins using the same are also disclosed.
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公开(公告)号：US12049065B2
公开(公告)日：2024-07-30
申请号：US18383653
申请日：2023-10-25
Applicant: Dow Global Technologies LLC
Inventor： Rahul Sharma , Jeffrey D. Weinhold , Phillip D. Hustad , Megan E. Donaldson , Xiaoyong Li , Joseph C. Neuman , Yang Yang
CPC classification number: B32B27/08 , B32B7/12 , B32B27/283 , B32B27/32 , B32B27/36 , C08G81/024 , B32B2250/24 , B32B2270/00 , B32B2307/31 , B32B2307/518 , B32B2307/746 , B32B2439/70 , B32B2553/00 , Y10T428/31663
Abstract: The present disclosure provides a multilayer film. The multilayer film includes at least two layers including a sealant layer and a second layer in contact with the sealant layer. The sealant layer contains (A) a first ethylene-based polymer having a density from 0.900 g/cc to 0.925 g/cc and a melt index from 0.5 g/10 min to 30 g/10 min; and (B) a polyethylene-polydimethylsiloxane block copolymer having a weight average molecular weight from 1,000 g/mol to 10,000 g/mol. The second layer contains a second ethylene-based polymer.
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公开(公告)号：US20220032588A1
公开(公告)日：2022-02-03
申请号：US17312331
申请日：2019-12-10
Applicant: Dow Global Technologies LLC
Inventor： Rahul Sharma , Jeffrey D. Weinhold , Phillip D. Hustad , Megan E. Donaldson , Xiaoyong Li , Joseph C. Neuman , Yang Yang
Abstract: The present disclosure provides a multilayer film. The multilayer film includes at least two layers including a sealant layer and a second layer in contact with the sealant layer. The sealant layer contains (A) a first ethylene-based polymer having a density from 0.900 g/cc to 0.925 g/cc and a melt index from 0.5 g/10 min to 30 g/10 min; and (B) a polyethylene-polydimethylsiloxane block copolymer having a weight average molecular weight from 1,000 g/mol to 10,000 g/mol. The second layer contains a second ethylene-based polymer.
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