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1.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.
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公开(公告)号：US20230023923A1
公开(公告)日：2023-01-26
申请号：US17781068
申请日：2020-12-01
发明人： Chuansheng Bai , Ali A. Kheir , Eric D. Metzger , Christian A. Diaz Urrutia , Meha Rungta , Umar Aslam
IPC分类号： B01J21/10 , B01J23/50 , B01J35/10 , B01J23/46 , B01J23/00 , B01J37/08 , B01J37/02 , C10G47/10
摘要： Disclosed are catalyst compositions comprising two or more metal elements with high performances for selective alkyl-demethylation of C2+-hydrocarbyl-substituted aromatics, processes for making such catalyst compositions, and alkyl-demethylation processes using same. Also disclosed are preferred processes for making alkyl-demethylation catalyst compositions including a high-temperature calcination step, and preferred alkyl-demethylation processes having a high H2/HC molar ratio.
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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.
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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.
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