-
11.发明公开公开(公告)号：US20240316544A1
公开(公告)日：2024-09-26
申请号：US18579568
申请日：2022-07-25
发明人： Xiaoying Bao
CPC分类号： B01J38/12 , B01J21/066 , B01J21/08 , B01J23/42 , B01J23/90 , C07C5/325 , C07C2521/06 , C07C2521/08 , C07C2523/42
摘要： Processes for regenerating an at least partially deactivated catalyst that can include a Group (10) element, an inorganic support, and a contaminant. The Group (10) element can have a concentration of from 0.06 wt % to 6 wt %, based on the weight of the inorganic support. The process can include (I) heating the deactivated catalyst using a heating gas mixture that includes H2O at a concentration >5 mol %, based on the total moles in the mixture to produce a precursor catalyst. The process can also include (II) providing an oxidative gas that includes ≤5 mol % of H2O, based on the total moles in the oxidative gas, and (III) contacting the precursor catalyst at an oxidizing temperature with the oxidative gas for a duration of at least 30 seconds to produce an oxidized precursor catalyst. The process can also include (IV) obtaining a regenerated catalyst from the oxidized precursor catalyst.
-
公开(公告)号：US20240294446A1
公开(公告)日：2024-09-05
申请号：US18578480
申请日：2022-07-20
发明人： Christian A. Diaz Urrutia , Xiaoying Bao , Keith H. Kuechler , Saurabh S. Maduskar , Arun K. Sharma , Russell T. Clay
IPC分类号： C07C5/32
CPC分类号： C07C5/325 , C07C2523/42 , C07C2523/50 , C07C2523/52 , C07C2523/62 , C07C2523/89
摘要： A hydrocarbon can be contacted with dehydrogenation catalyst particles to produce an effluent that can include coked catalyst particles and dehydrogenated hydrocarbon(s). A first stream rich in coked catalyst particles and a second stream rich in dehydrogenated hydrocarbon(s) and containing entrained catalyst particles can be separated from the effluent. The second stream can be contacted with a first quench medium to produce a cooled stream. The cooled stream can be contacted with a second quench medium within a quench tower. A gaseous stream that includes the dehydrogenated hydrocarbon(s), a first quench medium stream, and a slurry stream that includes the second quench medium and the entrained catalyst particles can be separated from the tower. The first quench medium can be recycled. The entrained catalyst particles can be separated from the slurry to provide recovered second quench medium and recovered entrained catalyst particles. The recovered second quench medium can be recycled.
-
公开(公告)号：US20240269653A1
公开(公告)日：2024-08-15
申请号：US18569159
申请日：2022-06-27
IPC分类号： B01J23/62 , B01J21/08 , B01J21/16 , B01J23/02 , B01J35/32 , B01J35/40 , B01J37/00 , B01J37/02 , B01J37/08 , B01J37/10 , C07C5/32
CPC分类号： B01J23/626 , B01J21/08 , B01J21/16 , B01J23/02 , B01J35/32 , B01J35/40 , B01J37/0009 , B01J37/0221 , B01J37/0236 , B01J37/088 , B01J37/10 , C07C5/325 , C07C2523/14 , C07C2523/42 , C07C2523/66 , C07C2523/89
摘要： Catalyst compositions and processes for making and using same. The catalyst composition can include catalyst particles. The catalyst particles can include 0.001 wt % to 6 wt % of Pt and up to 10 wt % of a promoter that can include Sn, Cu, Au, Ag, Ga, or a combination thereof, or a mixture thereof disposed on a support. The support can include at least 0.5 wt % of a Group 2 element. All weight percent values are based on the weight of the support. The catalyst particles can have a median particle size in a range from 10 μm to 500 pm. The catalyst particles can have an apparent loose bulk density in a range from 0.3 g/cm3 to 2 g/cm3, as measured according to ASTM D7481-18 modified with a 10, 25, or 50 mL graduated cylinder instead of a 100 or 250 mL graduated cylinder.
-
公开(公告)号：US12054456B2
公开(公告)日：2024-08-06
申请号：US17745566
申请日：2022-05-16
发明人： Xiaoying Bao , John S. Coleman
CPC分类号： C07C5/48 , B01J21/04 , B01J21/10 , B01J23/002 , B01J23/10 , B01J23/14 , B01J23/42 , C07C2521/04 , C07C2521/10 , C07C2523/10 , C07C2523/14 , C07C2523/42
摘要： Processes for upgrading a hydrocarbon. The process can include introducing, contacting, and halting introduction of a hydrocarbon-containing feed into a reaction zone. The feed can be contacted with a catalyst within the reaction zone to effect dehydrogenation, dehydroaromatization, and/or dehydrocyclization of the feed to produce a coked catalyst and an effluent. The process can include introducing, contacting, and halting introduction of an oxidant into the reaction zone. The oxidant can be contacted with the coked catalyst to effect combustion of the coke to produce a regenerated catalyst. The process can include introducing, contacting, and halting introduction of a reducing gas into the reaction zone. The reduction gas can be contacted with the regenerated catalyst to produce a regenerated and reduced catalyst. The process can include introducing and contacting an additional quantity of the feed with the regenerated and reduced catalyst to produce a re-coked catalyst and additional first effluent.
-
公开(公告)号：US20220274901A1
公开(公告)日：2022-09-01
申请号：US17744890
申请日：2022-05-16
发明人： Xiaoying Bao , John S. Coleman
摘要： Processes for upgrading a hydrocarbon. The process can include contacting a hydrocarbon-containing feed with fluidized catalyst particles that can include a Group 8-10 element or a compound thereof disposed on a support to effect one or more of dehydrogenation, dehydroaromatization, and dehydrocyclization of at least a portion of the hydrocarbon-containing feed to produce coked catalyst particles and an effluent. The process can also include contacting at least a portion of the coked catalyst particles with an oxidant to effect combustion of at least a portion of the coke to produce regenerated catalyst particles. The process can also include contacting at least a portion of the regenerated catalyst particles with a reducing gas to produce regenerated and reduced catalyst particles. The process can also include contacting an additional quantity of the hydrocarbon-containing feed with fluidized regenerated and reduced catalyst particles to produce additional effluent and re-coked catalyst particles.
-
公开(公告)号：US20240271048A1
公开(公告)日：2024-08-15
申请号：US18566981
申请日：2022-05-25
发明人： Xiaoying Bao
CPC分类号： C10G11/02 , B01J21/04 , B01J21/08 , B01J23/26 , B01J23/42 , B01J23/58 , B01J35/19 , C10G2300/1037 , C10G2300/4006 , C10G2300/4012 , C10G2300/4018 , C10G2300/706
摘要： Processes for converting an alkane to an alkene. In some embodiments, the process can include contacting a hydrocarbon-containing feed with a first catalyst that can include Pt or a second catalyst that can include Cr within a conversion zone to effect dehydrogenation of at least a portion of the hydrocarbon-containing feed to produce an effluent that can include one or more dehydrogenated hydrocarbons and molecular hydrogen. The process can also include contacting the effluent with a solid oxygen carrier disposed within the conversion zone to effect combustion of at least a portion of the molecular hydrogen to produce a conversion product that can include the one or more dehydrogenated hydrocarbons and water. In some embodiments, contacting the feed with the first or second catalyst can occur in a first conversion zone and contacting the effluent with the solid oxygen carrier can occur in a second conversion zone.
-
17.发明公开公开(公告)号：US20240226869A1
公开(公告)日：2024-07-11
申请号：US18562477
申请日：2022-05-06
发明人： Xiaoying Bao , Christian A. Diaz Urrutia , Chuansheng Bai , John S. Coleman , Keith H. Kuechler
CPC分类号： B01J38/12 , B01J23/8946 , B01J23/96 , C07C5/3337 , C07C2521/10 , C07C2523/78 , C07C2523/835 , C07C2523/89
摘要： Processes for regenerating an at least partially deactivated catalyst that can include a Group (10) element, an inorganic support, and a contaminant. The Group (10) element can have a concentration of from 0.001 wt % to 6 wt %, based on the weight of the inorganic support. The process can include (I) heating the deactivated catalyst using a heating gas mixture that includes H2O at a concentration >5 mol %, based on the total moles in the mixture to produce a precursor catalyst. The process can also include (II) providing an oxidative gas that includes ≤5 mol % of H2O, based on the total moles in the oxidative gas, and (III) contacting the precursor catalyst at an oxidizing temperature with the oxidative gas for a duration of at least 30 seconds to produce an oxidized precursor catalyst. The process can also include (IV) obtaining a regenerated catalyst from the oxidized precursor catalyst.
-
公开(公告)号：US20240001344A1
公开(公告)日：2024-01-04
申请号：US18208929
申请日：2023-06-13
发明人： Xiaoying Bao , Chuansheng Bai
CPC分类号： B01J23/626 , B01J23/02 , B01J37/08 , B01J37/18 , B01J37/14
摘要： Processes for calcining a catalyst. The process can include subjecting a synthesized catalyst that includes Pt disposed on a support to an initial calcination that includes exposing the catalyst to a first reducing gas or a first oxidizing gas to produce an initial calcined catalyst. The process can optionally include subjecting the initial calcined. catalyst to a cycle calcination that includes exposing the initial calcined catalyst to a second reducing gas and a second oxidizing gas to produce a cycle calcined catalyst. The process can optionally include subjecting the initial or the cycle calcined catalyst to a final calcination that includes exposing the initial or the cycle calcined catalyst to a third reducing gas or a third oxidizing gas. At least one of the cycle and the final calcination can be carried out. A calcined catalyst can be obtained at the end of the cycle or the final calcination.
-
公开(公告)号：US20210276002A1
公开(公告)日：2021-09-09
申请号：US17174078
申请日：2021-02-11
发明人： Xiaoying Bao , John S. Coleman
IPC分类号： B01J38/32 , C07C5/333 , B01J35/00 , B01J23/62 , B01J21/10 , B01J23/10 , B01J21/06 , B01J21/04
摘要： Processes for upgrading a hydrocarbon. The process can include contacting a hydrocarbon-containing feed with fluidized catalyst particles that can include a Group 8-10 element or a compound thereof disposed on a support to effect one or more of dehydrogenation, dehydroaromatization, and dehydrocyclization of at least a portion of the hydrocarbon-containing feed to produce a coked catalyst and an effluent. The process can also include contacting at least a portion of the coked catalyst particles with an oxidant to effect combustion of at least a portion of the coke to produce regenerated catalyst particles. The process can also include contacting an additional quantity of the hydrocarbon-containing feed with at least a portion of the regenerated catalyst particles to produce additional effluent and re-coked catalyst particles.
-
公开(公告)号：US10994268B2
公开(公告)日：2021-05-04
申请号：US15947986
申请日：2018-04-09
发明人： Larry L. Iaccino , Xiaoying Bao , Jeremy W. Bedard
IPC分类号： B01J29/90 , B01J29/44 , B01J29/40 , C07C5/41 , C07C5/32 , C07C5/333 , B01J38/02 , C07C5/373 , B01J38/18 , B01J38/14
摘要： Disclosed are processes for rejuvenating catalysts comprising at least one Group 10 metal and a microporous crystalline metallosilicate, and hydrocarbon conversion processes including such rejuvenation processes. In an aspect, the rejuvenation process comprises contacting a deactivated catalyst comprising at least one Group 10 metal and a microporous crystalline metallosilicate with an oxygen-containing gaseous stream under conditions comprising a temperature ranging from about 250° C. to about 375° C. and a pressure of up to about 100 bar. In a further aspect, the rejuvenation process comprises contacting a deactivated catalyst comprising at least one Group 10 metal, at least one rare earth metal, and a microporous crystalline metallosilicate with an oxygen-containing gaseous stream under conditions comprising a temperature ranging from about 250° C. to about 500° C. and a pressure of up to about 100 bar.
-
-
-
-
-
-
-
-
-
搜索结果
30 条记录 (耗时 0.022 秒)
