公开(公告)号：US11040331B2

公开(公告)日：2021-06-22

申请号：US16586981

申请日：2019-09-28

Applicant: Exelus, Inc. ,  Kellogg Brown and Root LLC

Inventor： Mitrajit Mukherjee ,  Vamsi M. Vadhri ,  Narendra Joshi ,  Grace Brock ,  Gautham Krishnaiah ,  Michael Tallman

IPC: B01J23/06 ,  B01J21/04 ,  B01J21/06 ,  B01J21/08 ,  B01J23/10 ,  B01J35/00 ,  B01J35/02 ,  B01J35/10 ,  B01J37/02 ,  B01J37/08 ,  B01J38/12 ,  C07C5/333

Abstract: The invention relates to a catalyst composition suitable for the dehydrogenation of paraffins having 2-8 carbon atoms comprising zinc oxide and titanium dioxide, optionally further comprising oxides of cerium (Ce), dysprosium (Dy), erbium (Er), europium (Eu), gadolinium (Gd), lanthanum (La), neodymium (Nd), praseodymium (Pr), samarium (Sm), terbium (Tb), ytterbium (Yb), yttrium (Y), tungsten (W) and Zirconium (Zr) or mixtures thereof, wherein said catalyst composition is substantially free of chromium and platinum. The catalysts possess unique combinations of activity, selectivity, and stability. Methods for preparing improved dehydrogenation catalysts and a process for dehydrogenating paraffins having 2-8 carbon atoms, comprising contacting the mixed metal oxide catalyst with paraffins are also described. The catalyst may also be disposed on a porous support in an attrition-resistant form and used in a fluidized bed reactor.

公开(公告)号：US11033880B2

公开(公告)日：2021-06-15

申请号：US16586980

申请日：2019-09-28

Applicant: Exelus, Inc.

Inventor： Mitrajit Mukherjee ,  Vamsi M. Vadhri ,  Narendra Joshi ,  Grace Brock

IPC: B01J23/06 ,  B01J23/00 ,  B01J23/34 ,  B01J23/648 ,  B01J23/72 ,  B01J23/745 ,  B01J35/02 ,  B01J35/10 ,  C07C5/333 ,  B01J21/02 ,  B01J21/06 ,  B01J21/08

Abstract: The invention relates to a catalyst composition suitable for the dehydrogenation of paraffins having 2-8 carbon atoms comprising zinc oxide and titanium dioxide, optionally further comprising oxides of cerium (Ce), dysprosium (Dy), erbium (Er), europium (Eu), gadolinium (Gd), lanthanum (La), neodymium (Nd), praseodymium (Pr), samarium (Sm), terbium (Tb), ytterbium (Yb), yttrium (Y), tungsten (W) and Zirconium (Zr) or mixtures thereof, wherein said catalyst composition is substantially free of chromium and platinum. The catalysts possess unique combinations of activity, selectivity, and stability. Methods for preparing improved dehydrogenation catalysts and a process for dehydrogenating paraffins having 2-8 carbon atoms, comprising contacting the mixed metal oxide catalyst with paraffins are also described. The catalyst may also be disposed on a porous support in an attrition-resistant form and used in a fluidized bed reactor.

公开(公告)号：US10464863B2

公开(公告)日：2019-11-05

申请号：US15190063

申请日：2016-06-22

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 ,  B01J29/12 ,  B01J29/14 ,  B01J37/08 ,  B01J38/10 ,  B01J29/74 ,  B01J29/90

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：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：US11478778B2

公开(公告)日：2022-10-25

申请号：US17331539

申请日：2021-05-26

Applicant: Exelus Inc.

Inventor： Mitrajit Mukherjee ,  Vamsi M. Vadhri ,  Narendra Joshi ,  Grace Brock

IPC: B01J23/06 ,  B01J23/00 ,  B01J23/34 ,  B01J23/648 ,  B01J23/72 ,  B01J23/745 ,  B01J35/02 ,  B01J35/10 ,  C07C5/333 ,  B01J21/02 ,  B01J21/06 ,  B01J21/08

Abstract: The invention relates to a catalyst composition suitable for the dehydrogenation of paraffins having 2-8 carbon atoms comprising zinc oxide and titanium dioxide, optionally further comprising oxides of cerium (Ce), dysprosium (Dy), erbium (Er), europium (Eu), gadolinium (Gd), lanthanum (La), neodymium (Nd), praseodymium (Pr), samarium (Sm), terbium (Tb), ytterbium (Yb), yttrium (Y), tungsten (W) and Zirconium (Zr) or mixtures thereof, wherein said catalyst composition is substantially free of chromium and platinum. The catalysts possess unique combinations of activity, selectivity, and stability. Methods for preparing improved dehydrogenation catalysts and a process for dehydrogenating paraffins having 2-8 carbon atoms, comprising contacting the mixed metal oxide catalyst with paraffins are also described. The catalyst may also be disposed on a porous support in an attrition-resistant form and used in a fluidized bed reactor.

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：US20210346868A1

公开(公告)日：2021-11-11

申请号：US17331539

申请日：2021-05-26

Applicant: Exelus Inc.

Inventor： Mitrajit Mukherjee ,  Vamsi M. Vadhri ,  Narendra Joshi ,  Grace Brock

IPC: B01J23/00 ,  B01J23/06 ,  B01J23/34 ,  B01J23/648 ,  B01J23/72 ,  B01J23/745 ,  B01J35/02 ,  B01J35/10 ,  C07C5/333

Abstract: The invention relates to a catalyst composition suitable for the dehydrogenation of paraffins having 2-8 carbon atoms comprising zinc oxide and titanium dioxide, optionally further comprising oxides of cerium (Ce), dysprosium (Dy), erbium (Er), europium (Eu), gadolinium (Gd), lanthanum (La), neodymium (Nd), praseodymium (Pr), samarium (Sm), terbium (Tb), ytterbium (Yb), yttrium (Y), tungsten (W) and Zirconium (Zr) or mixtures thereof, wherein said catalyst composition is substantially free of chromium and platinum. The catalysts possess unique combinations of activity, selectivity, and stability. Methods for preparing improved dehydrogenation catalysts and a process for dehydrogenating paraffins having 2-8 carbon atoms, comprising contacting the mixed metal oxide catalyst with paraffins are also described. The catalyst may also be disposed on a porous support in an attrition-resistant form and used in a fluidized bed reactor.

公开(公告)号：US20170113981A1

公开(公告)日：2017-04-27

申请号：US15331727

申请日：2016-10-21

Applicant: Exelus Inc.

Inventor： Mitrajit Mukherjee ,  Vamsi M. Vadhri ,  Narendra Joshi

IPC: C07C2/86 ,  B01J29/89 ,  B01J23/80 ,  B01J29/70 ,  B01J8/04 ,  B01J21/04 ,  B01J21/08 ,  B01J29/18 ,  B01J29/08 ,  B01J35/10 ,  C07C2/58 ,  B01J29/40

CPC classification number: C07C2/864 ,  B01J8/04 ,  B01J21/04 ,  B01J21/08 ,  B01J21/12 ,  B01J23/80 ,  B01J29/08 ,  B01J29/087 ,  B01J29/18 ,  B01J29/40 ,  B01J29/7007 ,  B01J29/7057 ,  B01J29/89 ,  B01J35/023 ,  B01J35/1019 ,  B01J35/1023 ,  B01J35/1057 ,  B01J2523/00 ,  C07C1/20 ,  C07C2/58 ,  C07C2/865 ,  C07C5/373 ,  C07C2521/04 ,  C07C2521/06 ,  C07C2521/08 ,  C07C2521/12 ,  C07C2523/755 ,  C07C2523/80 ,  C07C2529/08 ,  C07C2529/18 ,  C07C2529/40 ,  C07C2529/89 ,  C10G3/49 ,  C10G29/205 ,  C07C11/02 ,  C07C11/08 ,  C07C9/21 ,  B01J2523/27 ,  B01J2523/41 ,  B01J2523/47 ,  B01J2523/847

Abstract: Methods of simultaneously converting butanes and methanol to olefins over Ti-containing zeolite catalysts are described. The exothermicity of the alcohols to olefins reaction is matched by endothermicity of dehydrogenation reaction of butane(s) to light olefins resulting in a thermo-neutral process. The Ti-containing zeolites provide excellent selectivity to light olefins as well as exceptionally high hydrothermal stability. The coupled reaction may advantageously be conducted in a staged reactor with methanol/DME conversion zones alternating with zones for butane(s) dehydrogenation. The resulting light olefins can then be reacted with iso-butane to produce high-octane alkylate. The net result is a highly efficient and low cost method for converting methanol and butanes to alkylate.

公开(公告)号：US20170022126A1

公开(公告)日：2017-01-26

申请号：US15190063

申请日：2016-06-22

Applicant: Exelus, Inc.

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

IPC: C07C2/58 ,  B01J37/02 ,  B01J29/14 ,  B01J37/08 ,  B01J29/08 ,  B01J29/12

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 ,  B01J2229/10 ,  B01J2229/18 ,  B01J2229/186 ,  B01J2229/20 ,  B01J2229/40 ,  C01B39/026 ,  C01B39/20 ,  C01B39/46 ,  C07C2529/08 ,  C07C2529/12 ,  C07C2529/14 ,  C07C2529/70 ,  C10G29/205 ,  C10G2300/104 ,  C10G2300/1081 ,  C10G2300/1092 ,  C10G2300/305 ,  C10G2400/02 ,  Y02P20/584 ,  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.

Abstract translation: 描述了改进的烷基化催化剂，烷基化方法和制备烷基化催化剂的方法。 烷基化方法包括在固体酸，沸石基催化剂上的反应，并且可以在稳态条件下进行相对长的时间。 烷基化催化剂包括结晶沸石结构，Si / Al摩尔比为20以下，碱金属少于0.5重量％，并且还具有特征的催化剂寿命性质。 一些催化剂可以含有10〜35重量％的稀土元素。 制备催化剂的一种方法包括在至少575℃的温度下进行的稀土元素的交换之后的煅烧步骤，以稳定所得结构，然后进行脱氨处理。 改进的去氨化方法使用低温氧化。

公开(公告)号：US12194444B2

公开(公告)日：2025-01-14

申请号：US17542293

申请日：2021-12-03

Applicant: Exelus Inc.

Inventor： Mitrajit Mukherjee ,  Vamsi Vadhri

IPC: C07C2/86 ,  B01J8/02 ,  B01J29/08 ,  B01J37/02 ,  B01J37/30 ,  B01J38/12 ,  C07C41/09

Abstract: The invention provides methods, catalysts and systems for producing styrene from DME and toluene. Zeolite catalysts comprising potassium, rubidium or cesium and containing at least 0.1 wt % B are described. Methods of making the catalysts are also described.