公开(公告)号：US11891347B2

公开(公告)日：2024-02-06

申请号：US17584610

申请日：2022-01-26

Applicant: Exelus Inc.

Inventor： Mitrajit Mukherjee ,  Eric Daniel Gauthier ,  Kelly Ann Coley

IPC: B01J29/06 ,  C07C2/58 ,  B01J29/08 ,  B01J29/70 ,  B01J37/30 ,  B01J37/02 ,  C01B39/20 ,  C01B39/02 ,  C01B39/46 ,  C10G29/20 ,  B01J29/90 ,  B01J29/12 ,  B01J38/10 ,  B01J29/74 ,  C07C2/56 ,  C07C2/54 ,  C07C9/14 ,  C07C9/16 ,  B01J29/14 ,  B01J37/08 ,  C10G99/00

CPC classification number: C07C2/58 ,  B01J29/08 ,  B01J29/082 ,  B01J29/084 ,  B01J29/087 ,  B01J29/088 ,  B01J29/123 ,  B01J29/126 ,  B01J29/143 ,  B01J29/7007 ,  B01J29/7057 ,  B01J29/7407 ,  B01J29/90 ,  B01J37/0201 ,  B01J37/024 ,  B01J37/08 ,  B01J37/30 ,  B01J38/10 ,  C01B39/026 ,  C01B39/20 ,  C01B39/46 ,  C07C2/54 ,  C07C2/56 ,  C07C9/14 ,  C07C9/16 ,  C10G29/205 ,  B01J2229/10 ,  B01J2229/18 ,  B01J2229/186 ,  B01J2229/20 ,  B01J2229/40 ,  C07C2529/08 ,  C07C2529/12 ,  C07C2529/14 ,  C07C2529/70 ,  C10G99/00 ,  C10G2300/104 ,  C10G2300/1081 ,  C10G2300/1092 ,  C10G2300/305 ,  C10G2300/70 ,  C10G2400/02 ,  Y02P20/584 ,  C07C2/58 ,  C07C9/16

Abstract: Improved alkylation catalysts, alkylation methods, and methods of making alkylation catalysts are described. The alkylation method comprises reaction over a solid acid, zeolite-based catalyst and can be conducted for relatively long periods at steady state conditions. The alkylation catalyst comprises a crystalline zeolite structure, a Si/Al molar ratio of 20 or less, less than 0.5 weight percent alkali metals, and further having a characteristic catalyst life property. Some catalysts may contain rare earth elements in the range of 10 to 35 wt %. One method of making a catalyst includes a calcination step following exchange of the rare earth element(s) conducted at a temperature of at least 575° C. to stabilize the resulting structure followed by an deammoniation treatment. An improved method of deammoniation uses low temperature oxidation.

公开(公告)号：US20230234022A1

公开(公告)日：2023-07-27

申请号：US18130577

申请日：2023-04-04

Applicant: TOSOH CORPORATION

Inventor： Keita NAKAO ,  Ryo MITSUHASHI

IPC: B01J20/18 ,  B01D53/04 ,  B01D53/94 ,  B01J20/28 ,  C01B39/20 ,  C07C7/12 ,  F01N3/08 ,  F01N3/28

CPC classification number: B01J20/18 ,  B01D53/04 ,  B01D53/9486 ,  B01J20/28009 ,  C01B39/20 ,  C07C7/12 ,  F01N3/0814 ,  F01N3/0835 ,  F01N3/2803 ,  B01D2253/108 ,  B01D2257/702 ,  C01P2002/60 ,  C01P2002/78 ,  C01P2006/42 ,  F01N2330/02 ,  F01N2330/32 ,  F01N2370/04 ,  F01N2570/12

Abstract: A hydrocarbon adsorbent having high hydrocarbon adsorbing properties even after exposed to a high temperature/high humidity reducing atmosphere, includes a FAU type zeolite having in ESR measurement a spin concentration of a least 1.0 × 10^19 (spins/g) and a ratio of a peak intensity at a magnetic field of at least 260 mT and at most 270 mT to a peak intensity at a magnetic field of at least 300 mT and at most 320 mT of at least 0.25 and at most 0.50 Å and containing bivalent copper. The hydrocarbon adsorbent may be used for a method for adsorbing hydrocarbons to be exposed to a high temperature/high humidity environment, and may be used particularly for a method for adsorbing hydrocarbons in an exhaust gas of an internal combustion engine, such as an automobile exhaust gas.

公开(公告)号：US20230148413A1

公开(公告)日：2023-05-11

申请号：US17915332

申请日：2021-03-30

Applicant: TOSOH CORPORATION

Inventor： Toyohiro USUI ,  Keita NAKAO

IPC: B01J20/18 ,  C01B39/46 ,  C01B39/20 ,  C01B39/26 ,  B01D53/02

CPC classification number: B01J20/18 ,  C01B39/46 ,  C01B39/20 ,  C01B39/26 ,  B01D53/02 ,  B01D2253/1085 ,  B01D2253/1122 ,  B01D2257/702

Abstract: A hydrocarbon adsorbent having a high hydrocarbon desorption start temperature and a method for adsorbing hydrocarbons that uses the hydrocarbon adsorbent are provided. The hydrocarbon adsorbent includes an alkali metal and a zeolite having a ring structure that includes at least 10 members is used. In the hydrocarbon adsorbent, a content of the alkali metal is 1 to 40 mass % based on a total mass of the hydrocarbon adsorbent, a content of the zeolite having a ring structure that includes at least 10 members is 99 to 60 mass % based on the total mass of the hydrocarbon adsorbent, and at least a portion of the alkali metal is in a state of being ion-exchangeable.

公开(公告)号：US20220411276A1

公开(公告)日：2022-12-29

申请号：US17780518

申请日：2020-11-26

Applicant: TOSOH CORPORATION

Inventor： Yuki OBA ,  Keisuke TOKUNAGA ,  Yoju SHIMIZU

IPC: C01B39/20 ,  C01B39/38

Abstract: A zeolite molded article includes 100 parts by weight of zeolite, 35 parts by weight or more and 70 parts by weight or less of clay, 5 parts by weight or more and 40 parts by weight or less of a silica sol and 0.5 parts by weight or more and 10 parts by weight or less of a water-soluble sodium salt, having an abrasion resistance of 90% or more, an angle of repose of 40° or less, an aerated bulk density on the surface of the zeolite molded article of 0.5 kg/L or more, and a sphericity of the zeolite molded article of 1 or more and 3 or less. The zeolite contains at least one type of zeolite having Si/Al2 of 10 or more and 100,000 or less and a moisture adsorption amount of 10 (g/100 g) or less at 25° C. under a relative pressure of 0.5.

公开(公告)号：US20220185747A1

公开(公告)日：2022-06-16

申请号：US17593149

申请日：2020-03-17

Applicant: ZEON CORPORATION

Inventor： Takahiro SUZUKI

IPC: C07C7/144 ,  C01B39/20 ,  B01D53/22 ,  B01D67/00 ,  B01D71/02

Abstract: A separation method includes a separation step of using a zeolite membrane composite to separate a branched diolefin from a branched hydrocarbon mixture containing the branched diolefin and at least one branched hydrocarbon in which the number of carbon-carbon double bonds is 1 or less and that is of an equivalent carbon number n to the branched diolefin. The zeolite membrane composite used in this step is a zeolite membrane composite that includes a porous support and a FAU-type zeolite membrane formed on at least one surface of the porous support, and in which the FAU-type zeolite membrane is a silylated FAU-type zeolite membrane including a silyl group at the surface thereof.

公开(公告)号：US20220144724A1

公开(公告)日：2022-05-12

申请号：US17584610

申请日：2022-01-26

Applicant: Exelus Inc.

Inventor： Mitrajit Mukherjee ,  Eric Daniel Gauthier ,  Kelly Ann Coley

IPC: C07C2/58 ,  B01J29/08 ,  B01J29/70 ,  B01J37/30 ,  B01J37/02 ,  C01B39/20 ,  C01B39/02 ,  C01B39/46 ,  C10G29/20 ,  B01J29/90 ,  B01J29/12 ,  B01J38/10 ,  B01J29/74 ,  C07C2/56 ,  C07C2/54 ,  C07C9/14 ,  C07C9/16 ,  B01J29/14 ,  B01J37/08

Abstract: Improved alkylation catalysts, alkylation methods, and methods of making alkylation catalysts are described. The alkylation method comprises reaction over a solid acid, zeolite-based catalyst and can be conducted for relatively long periods at steady state conditions. The alkylation catalyst comprises a crystalline zeolite structure, a Si/Al molar ratio of 20 or less, less than 0.5 weight percent alkali metals, and further having a characteristic catalyst life property. Some catalysts may contain rare earth elements in the range of 10 to 35 wt %. One method of making a catalyst includes a calcination step following exchange of the rare earth element(s) conducted at a temperature of at least 575° C. to stabilize the resulting structure followed by an deammoniation treatment. An improved method of deammoniation uses low temperature oxidation.

公开(公告)号：US20220033270A1

公开(公告)日：2022-02-03

申请号：US16970621

申请日：2020-01-09

Applicant: SOOCHOW UNIVERSITY

Inventor： Shuao WANG ,  Mingxing ZHANG ,  Junchang CHEN

IPC: C01B39/48 ,  C01B39/02 ,  C01B39/14 ,  C01B39/20 ,  C01B39/54

Abstract: A method for preparing a zeolite molecular sieve includes the steps of: (1) mixing at least one of a silicon source, an aluminum source and a phosphorus source with an alkaline substance, a template agent and water uniformly to obtain a zeolite molecular sieve precursor solution; aging the zeolite molecular sieve precursor solution at 20-30° C. for 10-15 h; and subjecting the aged solution to ionizing radiation, and then washing the obtained solid to neutrality and drying to obtain the zeolite molecular sieve. The method of the present invention is green, simple and extremely cost-effective. Under the irradiation of an ionizing radiation source, the synthesis period of zeolite molecular sieve is short and no heating is needed in the preparation process, so energy consumption is reduced and a high-pressure system is avoided.

公开(公告)号：US11192794B2

公开(公告)日：2021-12-07

申请号：US16770593

申请日：2018-11-23

Applicant: EVONIK OPERATIONS GMBH

Inventor： Franz Schmidt ,  Johan Anton ,  Matthias Pascaly ,  Andrea Heinroth ,  Stefan Wieland ,  Heiko Morell ,  Peter Kress ,  Michael Hagemann

IPC: C01B39/02 ,  C01B33/20 ,  C01B39/20 ,  C01B39/46 ,  C01B39/14 ,  C01B39/26 ,  C01B39/38

Abstract: The present invention relates to a process for preparing a pulverulent, porous crystalline metal silicate, comprising the following steps: a) hydrothermal synthesis in an aqueous mixture comprising (A) at least one silicon source, (B) at least one metal source and (C) at least one mineralizer to obtain an aqueous suspension comprising a porous crystalline metal silicate as reaction product; and b) calcination of the reaction product, characterized in that the calcination is conducted by means of flame spray pyrolysis at an adiabatic combustion temperature within a range of 450-2200° C., wherein the suspension having a solids content of 70% by weight which is obtained in step a) is sprayed into a flame generated by combustion of a fuel in the presence of oxygen to form a pulverulent, porous crystalline metal silicate.

公开(公告)号：US11124421B2

公开(公告)日：2021-09-21

申请号：US16493593

申请日：2018-03-12

Applicant: Arkema France

Inventor： Serge Nicolas ,  Cécile Lutz

IPC: C01B39/46 ,  B01J37/10 ,  C01B39/38 ,  C01B39/26 ,  C01B39/16 ,  C01B39/34 ,  C01B39/20 ,  C01B39/14 ,  C01B39/30 ,  B01J29/70 ,  B01J29/40 ,  B01J29/50 ,  B01J29/18 ,  B01J29/08

Abstract: The present invention relates to a process for preparing zeolite crystals having a multimodal particle size distribution, and the sizes of which are between 0.02 μm and 20 μm, said process comprising a first introduction of one or more seeding agents into the tubular reactor or upstream of the tubular reactor, and at least one second introduction of one or more, identical or different, seeding agents into the tubular reactor.

公开(公告)号：US20210284543A1

公开(公告)日：2021-09-16

申请号：US17332525

申请日：2021-05-27

Applicant: W.R. Grace & Co.-CONN.

Inventor： Kunhao Li ,  Javier Garcia-Martinez

IPC: C01B39/06 ,  C01B39/20 ,  C01B39/26 ,  C01B39/40 ,  C01B39/32 ,  C01B39/02 ,  C01B39/38 ,  C01B39/48 ,  C01B39/46

Abstract: Compositions and methods for preparing mesoporous and/or mesostructured materials from low SAR zeolites are provided herewith. In particular, methods are provided that involve: (a) providing a low SAR zeolite, (b) optionally subjecting the low SAR zeolite to an acid framework modification, and (c) subjecting the framework-modified zeolite to a mesopore formation treatment. The resulting mesoporous zeolites can have bi-modal mesoporosity and higher aluminum contents relative to existing mesoporous zeolites.