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公开(公告)号:US11071971B2
公开(公告)日:2021-07-27
申请号:US16471403
申请日:2017-12-21
IPC分类号: B01J29/89 , B01J23/00 , B01J23/72 , B01J35/00 , B01J35/02 , B01J35/10 , B01J37/00 , B01J37/02 , B01J37/08 , F23C10/01 , F23C13/08
摘要: The invention relates to an oxygen carrier solid, its preparation and its use in a method of combustion of a hydrocarbon feedstock by active mass chemical-looping oxidation-reduction, i.e. chemical-looping combustion (CLC). The solid, which is in the form of particles, comprises an oxidation-reduction active mass composed of metal oxide(s) dispersed in a ceramic matrix comprising at least at least one feldspar or feldspathoid with a melting point higher than 1500° C., such as celsian, and has, initially, a specific macroporous texture. The oxygen carrier solid is prepared from a precursor of the ceramic matrix, obtained from a macroporous zeolitic material with zeolite crystals of a specific size, and a precursor of the oxidation-reduction active mass.
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公开(公告)号:US11717811B2
公开(公告)日:2023-08-08
申请号:US16471499
申请日:2017-12-21
发明人: Arnold Lambert , Mathieu Michau , Delphine Marti , Elodie Comte
IPC分类号: B01J23/72 , B01J21/04 , B01J21/12 , B01J35/10 , B01J35/02 , B01J37/03 , B01J37/08 , B01J37/00 , F23C10/01 , F23C10/04 , F23C13/08 , B01J37/02
CPC分类号: B01J23/72 , B01J21/04 , B01J21/12 , B01J35/023 , B01J35/026 , B01J35/108 , B01J35/1038 , B01J35/1042 , B01J35/1047 , B01J35/1076 , B01J37/0018 , B01J37/0203 , B01J37/0207 , B01J37/0236 , B01J37/038 , B01J37/08 , F23C10/01 , F23C10/04 , F23C13/08
摘要: The invention relates to an oxygen carrier solid, its preparation and its use in a method of combustion of a hydrocarbon feedstock by active mass chemical-looping oxidation-reduction, i.e. chemical-looping combustion (CLC). The solid, which is in the form of particles, comprises an oxidation-reduction active mass composed of metal oxide(s) dispersed in a ceramic matrix comprising at least one oxide with a melting point higher than 1500° C., such as alumina, and has, initially, a specific macroporous texture. The oxygen carrier solid is prepared from an aqueous suspension containing precursor oxide grains for the ceramic matrix that have a specific size, by a spray-drying technique.
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