公开(公告)号：US20240286977A1

公开(公告)日：2024-08-29

申请号：US18438462

申请日：2024-02-10

Applicant: Exelus Inc.

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

IPC: C07C4/06 ,  B01J21/04 ,  B01J29/16 ,  B01J29/40 ,  B01J29/48 ,  B01J29/78 ,  B01J29/90 ,  B01J35/40 ,  B01J35/61 ,  B01J37/00 ,  B01J37/02 ,  B01J37/08 ,  B01J38/02 ,  B01J38/12 ,  C10G11/05 ,  C10G11/10 ,  C10G11/18

CPC classification number: C07C4/06 ,  B01J21/04 ,  B01J29/166 ,  B01J29/40 ,  B01J29/48 ,  B01J29/7815 ,  B01J29/90 ,  B01J35/40 ,  B01J35/615 ,  B01J35/617 ,  B01J35/618 ,  B01J37/0009 ,  B01J37/0201 ,  B01J37/0236 ,  B01J37/08 ,  B01J38/02 ,  B01J38/12 ,  C10G11/05 ,  C10G11/10 ,  C10G11/182 ,  B01J2229/186 ,  B01J2229/42 ,  C07C2521/04 ,  C07C2521/10 ,  C07C2529/08 ,  C07C2529/40 ,  C07C2529/70

Abstract: The addition of small amounts of alkaline earth metal oxides (CaO, MgO) as the isomerization function and transition metal oxides (such as MoO3, WO3) as the metathesis function significantly enhances the production of propylene using zeolites. Once the light olefins are formed by cracking on the acid sites of the zeolite, the 1-butene molecules undergo isomerization catalyzed by alkali earth metal oxides and then react with ethylene to produce more propylene.

公开(公告)号：US11261139B2

公开(公告)日：2022-03-01

申请号：US16590328

申请日：2019-10-01

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 ,  C10G99/00

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：US20200283354A1

公开(公告)日：2020-09-10

申请号：US16867487

申请日：2020-05-05

Applicant: Exelus Inc.

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

IPC: C07C2/86 ,  C07C2/58 ,  B01J29/89 ,  B01J23/80 ,  B01J29/70 ,  B01J29/40 ,  B01J21/04 ,  B01J21/08 ,  B01J29/18 ,  B01J29/08 ,  B01J35/10 ,  B01J8/04 ,  C07C1/20 ,  C07C5/373 ,  C10G29/20 ,  C10G3/00 ,  B01J21/12 ,  B01J35/02

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：US11492307B2

公开(公告)日：2022-11-08

申请号：US16867487

申请日：2020-05-05

Applicant: Exelus Inc.

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

IPC: C07C2/86 ,  C07C2/58 ,  B01J29/89 ,  B01J23/80 ,  B01J29/70 ,  B01J29/40 ,  B01J21/04 ,  B01J21/08 ,  B01J29/18 ,  B01J29/08 ,  B01J35/10 ,  B01J8/04 ,  C07C1/20 ,  C07C5/373 ,  C10G29/20 ,  C10G3/00 ,  B01J21/12 ,  B01J35/02

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：US11364482B2

公开(公告)日：2022-06-21

申请号：US16876957

申请日：2020-05-18

Applicant: Exelus, Inc.

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

IPC: C07C5/00 ,  B01J23/00 ,  B01J37/08 ,  B01J37/04 ,  B01J37/06 ,  B01J37/03 ,  B01J37/02 ,  B01J21/06 ,  B01J8/02 ,  B01J35/08 ,  B01J35/10 ,  B01J35/02 ,  C07C5/333 ,  B01J23/06

Abstract: A catalyst, methods of making, and process of dehydrogenating paraffins utilizing the catalyst. The catalyst includes at least 20 mass % Zn, a catalyst support and a catalyst stabilizer. The catalyst is further characterizable by physical properties such as activity parameter measured under specified conditions. 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：US20200031733A1

公开(公告)日：2020-01-30

申请号：US16590328

申请日：2019-10-01

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 ,  B01J29/12 ,  B01J29/14 ,  B01J37/08 ,  C10G29/20 ,  B01J29/90 ,  B01J38/10 ,  B01J29/74

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：US20190218158A1

公开(公告)日：2019-07-18

申请号：US16246462

申请日：2019-01-12

Applicant: Exelus Inc.

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

IPC: C07C2/86 ,  C07C2/58 ,  B01J21/12 ,  B01J29/08 ,  B01J29/70 ,  B01J35/02 ,  B01J35/10 ,  C07C5/373 ,  C10G29/20 ,  C10G3/00 ,  B01J29/18 ,  B01J21/08 ,  B01J21/04 ,  B01J29/40 ,  B01J23/80 ,  B01J29/89 ,  C07C1/20 ,  B01J8/04

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：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.