公开(公告)号：US20240132437A1

公开(公告)日：2024-04-25

申请号：US18383156

申请日：2023-10-23

Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY

Inventor： Jong Wook BAE ,  Xu WANG ,  So Yun JEONG ,  Eun Jeong KIM ,  Zafar FAISAL ,  Ali MANSOOR

IPC: C07C67/00 ,  B01J21/08 ,  B01J23/80 ,  B01J29/65 ,  B01J29/68 ,  B01J35/02 ,  B01J35/10 ,  B01J37/00 ,  B01J37/08 ,  B01J37/10 ,  B01J37/18 ,  B01J37/30 ,  C01B39/44

CPC classification number: C07C67/00 ,  B01J21/08 ,  B01J23/80 ,  B01J29/65 ,  B01J29/68 ,  B01J35/023 ,  B01J35/1019 ,  B01J35/1038 ,  B01J37/0018 ,  B01J37/082 ,  B01J37/10 ,  B01J37/18 ,  B01J37/30 ,  C01B39/445

Abstract: Disclosed are a tandem catalyst for synthesizing methyl acetate from carbon dioxide, a method for preparing the same, and a method for preparing methyl acetate using the same. The tandem catalyst of the present invention includes a first catalyst having a core-shell structure including a composite metal oxide core and a silica shell surrounding a surface of the composite metal oxide core, and a second catalyst including nano-ferrierite (N-FER) zeolite.

公开(公告)号：US20220348529A1

公开(公告)日：2022-11-03

申请号：US17410322

申请日：2021-08-24

Applicant: HYUNDAI MOTOR COMPANY ,  Kia Corporation ,  Research & Business Foundation SUNGKYUNKWAN UNIVERSITY

Inventor： Chae Hwan HONG ,  Jin Woo CHOUNG ,  Young Gul HUR ,  Jong Wook BAE ,  Hyun Seung JUNG ,  Xu WANG

IPC: C07C41/01 ,  B01J29/68 ,  B01J37/30 ,  B01J37/10 ,  B01J37/08 ,  B01J37/03 ,  B01J35/10

Abstract: A method of preparing a catalyst for synthesizing dimethyl ether from synthetic gas includes preparing a mesoporous ferrierite zeolite (FER), and co-precipitating a precursor of a mesoporous ferrierite zeolite and a Cu—Zn—Al-based oxide (CZA) to obtain a hybrid CZA/mesoFER catalyst.

公开(公告)号：US11471863B2

公开(公告)日：2022-10-18

申请号：US16484394

申请日：2018-02-07

Applicant: BASF Corporation

Inventor： Shiang Sung ,  Markus Koegel ,  Bjoern Neumann ,  Patrick McCanty

IPC: F01N3/20 ,  B01J29/44 ,  B01J29/74 ,  B01J29/76 ,  F01N3/022 ,  F01N3/08 ,  B01J23/10 ,  B01J29/068 ,  B01J29/076 ,  B01J29/072 ,  B01J29/78 ,  B01J29/06 ,  B01J29/46 ,  B01J29/56 ,  B01J29/40 ,  B01J29/48 ,  B01J29/50 ,  B01J29/42 ,  B01J29/52 ,  B01J29/54 ,  B01J29/65 ,  B01J29/58 ,  B01J29/70 ,  B01J29/68 ,  B01J29/67 ,  B01J29/66 ,  B01J29/61 ,  B01J35/04 ,  B01J29/72 ,  B01D53/62 ,  B01D53/56 ,  B01D53/72 ,  B01D53/86 ,  B01D53/90 ,  B01D53/92 ,  B01D53/94 ,  F01N3/28

Abstract: Provided herein is a catalytic article including a catalytic coating disposed on a substrate, wherein the catalytic coating comprises a bottom coating on the substrate and a top coating layer on the bottom coating layer, one such coating layer containing a platinum group metal on a refractory metal oxide support and the other such coating layer containing a ceria-containing molecular sieve. Such catalytic articles are effective toward treating exhaust gas streams of internal combustion engines and exhibit outstanding resistance to sulfur.

公开(公告)号：US20190247836A1

公开(公告)日：2019-08-15

申请号：US16392768

申请日：2019-04-24

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Guy Richard CHANDLER ,  Jillian Elaine COLLIER ,  Alexander Nicholas Michael GREEN ,  Desiree DURAN-MARTIN ,  Paul Richard PHILLIPS ,  Raj Rao RAJARAM ,  Stuart David REID

IPC: B01J29/072 ,  B01J37/00 ,  C01B39/44 ,  C01B39/02 ,  C01B39/54 ,  B01J29/85 ,  B01J29/68 ,  B01J29/46 ,  B01D53/94 ,  B01J29/76 ,  B01J37/14 ,  B01J37/18 ,  B01D53/56 ,  B01J37/16 ,  B01J37/12

CPC classification number: B01J29/072 ,  B01D53/56 ,  B01D53/565 ,  B01D53/9418 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2255/20738 ,  B01D2255/50 ,  B01D2255/502 ,  B01D2255/504 ,  B01D2258/012 ,  B01D2258/0283 ,  B01J29/46 ,  B01J29/68 ,  B01J29/76 ,  B01J29/7615 ,  B01J29/763 ,  B01J29/85 ,  B01J37/0036 ,  B01J37/0045 ,  B01J37/12 ,  B01J37/14 ,  B01J37/16 ,  B01J37/18 ,  B01J2229/10 ,  B01J2229/186 ,  B01J2229/36 ,  B01J2229/40 ,  C01B39/02 ,  C01B39/44 ,  C01B39/54

Abstract: SCR-active molecular-sieve based catalysts with improved low-temperature performance are made by heating a molecular-sieve in a non-oxidizing atmosphere with steam (hydrothermal treatment), or in a reducing atmosphere without steam (thermal treatment), at a temperature in the range of 600-900° C. for a time period from 5 minutes to two hours. The resulting SCR-active iron-containing molecular sieves exhibit a selective catalytic reduction of nitrogen oxides with NH3 or urea at 250° C. that is at least 50% greater than if the iron-containing molecular-sieve were calcined at 500° C. for two hours without performing the hydrothermal or thermal treatment.

公开(公告)号：US20190176128A1

公开(公告)日：2019-06-13

申请号：US16217463

申请日：2018-12-12

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： David MICALLEF ,  Andrew NEWMAN ,  Alex Connel PARSONS

IPC: B01J23/42 ,  B01J29/76 ,  B01J29/68 ,  B01J29/24 ,  F01N3/20

Abstract: Catalysts having a first catalyst coating and a second catalyst coating, the first catalyst coating including a blend of 1) Pt on a support, and 2) a molecular sieve, and the second catalyst coating including an SCR catalyst.

公开(公告)号：US10272419B2

公开(公告)日：2019-04-30

申请号：US14633777

申请日：2015-02-27

Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY

Inventor： Guy Richard Chandler ,  Jillian Elaine Collier ,  Alexander Nicholas Michael Green ,  Desiree Duran-Martin ,  Paul Richard Phillips ,  Raj Rao Rajaram ,  Stuart David Reid

IPC: B01J29/06 ,  B01J29/072 ,  B01J37/14 ,  B01J37/18 ,  B01J37/12 ,  B01J37/16 ,  B01D53/56 ,  B01J37/00 ,  B01J29/46 ,  B01J29/68 ,  B01J29/85 ,  C01B39/02 ,  C01B39/44 ,  C01B39/54 ,  B01D53/94 ,  B01J29/76

Abstract: SCR-active molecular-sieve based catalysts with improved low-temperature performance are made by heating a molecular-sieve in a non-oxidizing atmosphere with steam (hydrothermal treatment), or in a reducing atmosphere without steam (thermal treatment), at a temperature in the range of 600-900° C. for a time period from 5 minutes to two hours. The resulting SCR-active iron-containing molecular sieves exhibit a selective catalytic reduction of nitrogen oxides with NH3 or urea at 250° C. that is at least 50% greater than if the iron-containing molecular-sieve were calcined at 500° C. for two hours without performing the hydrothermal or thermal treatment.

公开(公告)号：US10118165B2

公开(公告)日：2018-11-06

申请号：US14870848

申请日：2015-09-30

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Wenyih F. Lai ,  Christine N. Elia ,  Jane C. Cheng ,  Shifang L. Luo ,  Hari Nair ,  Joshua I. Cutler ,  Doron Levin

IPC: C07C6/12 ,  C07C4/18 ,  B01J29/80 ,  B01J8/04 ,  B01J29/22 ,  B01J29/24 ,  B01J29/44 ,  B01J29/46 ,  B01J29/67 ,  B01J29/68 ,  B01J29/74 ,  B01J29/76 ,  B01J35/00 ,  B01J35/02 ,  B01J35/10 ,  B01J37/18 ,  C01B39/26

Abstract: Disclosed is a catalyst composition and its use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst composition comprises a first zeolite having a constraint index of 3 to 12, a second zeolite comprising a mordenite zeolite synthesized from TEA or MTEA, at least one first metal of Group 10 of the IUPAC Periodic Table, and at least one second metal of Group 11 to 15 of the IUPAC Periodic Table, wherein said mordenite zeolite has a mesopore surface area of greater than 30 m2/g and said mordenite zeolite comprises agglomerates composed of primary crystallites, wherein said primary crystallites have an average primary crystal size as measured by TEM of less than 80 nm and an aspect ratio of less than 2.

公开(公告)号：US10058853B2

公开(公告)日：2018-08-28

申请号：US15004623

申请日：2016-01-22

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Wenyih F. Lai ,  Christine N. Elia ,  Jane C. Cheng ,  Shifang L. Luo ,  Hari Nair ,  Joshua I. Cutler ,  Doron Levin ,  Chuansheng Bai

IPC: C07C6/12 ,  C07C4/18 ,  B01J29/80 ,  B01J35/10 ,  B01J29/22 ,  B01J29/24 ,  B01J29/44 ,  B01J29/46 ,  B01J8/04 ,  B01J37/18 ,  B01J29/67 ,  B01J29/68 ,  B01J29/74 ,  B01J29/76 ,  B01J35/00 ,  B01J35/02 ,  C01B39/26

CPC classification number: B01J29/80 ,  B01J8/04 ,  B01J29/22 ,  B01J29/24 ,  B01J29/44 ,  B01J29/46 ,  B01J29/67 ,  B01J29/68 ,  B01J29/74 ,  B01J29/7446 ,  B01J29/7453 ,  B01J29/7461 ,  B01J29/7476 ,  B01J29/7484 ,  B01J29/7492 ,  B01J29/76 ,  B01J29/7646 ,  B01J29/7653 ,  B01J29/7661 ,  B01J29/7676 ,  B01J29/7684 ,  B01J29/7692 ,  B01J35/002 ,  B01J35/023 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1023 ,  B01J35/1033 ,  B01J35/1052 ,  B01J35/108 ,  B01J37/0201 ,  B01J37/18 ,  B01J37/30 ,  B01J2208/027 ,  B01J2229/186 ,  B01J2229/42 ,  C01B39/265 ,  C07C4/18 ,  C07C6/126 ,  C07C15/06 ,  C07C2521/04 ,  C07C2529/18 ,  C07C2529/22 ,  C07C2529/24 ,  C07C2529/26 ,  C07C2529/40 ,  C07C2529/44 ,  C07C2529/46 ,  C07C2529/80 ,  C07C2529/87 ,  C10G45/62 ,  C10G45/64 ,  C10G45/70 ,  C10G2300/1096 ,  C10G2300/70 ,  C10G2400/30 ,  Y02P20/52

Abstract: Disclosed is a catalyst composition and its use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst composition comprises a mordenite zeolite synthesized from TEA or MTEA, optionally at least one first metal of Group 10 of the IUPAC Periodic Table, and optionally at least one second metal of Group 11 to 15 of the IUPAC Periodic Table, wherein said mordenite zeolite has a mesopore surface area of greater than 30 m2/g and said mordenite zeolite comprises agglomerates composed of primary crystallites, wherein said primary crystallites have an average primary crystal size as measured by TEM of less than 80 nm and an aspect ratio of less than 2.

公开(公告)号：US20170334722A1

公开(公告)日：2017-11-23

申请号：US15667293

申请日：2017-08-02

Applicant: ThyssenKrupp Uhde GmbH

Inventor： Meinhard Schwefer ,  Rolf Siefert ,  Jürgen Fuchs ,  Klaus Ruthardt ,  Michael Groves

IPC: C01B21/40 ,  B01D53/86 ,  C01B21/26 ,  C01B21/38 ,  B01J29/072 ,  B01J29/76 ,  B01J29/68 ,  B01J29/46

CPC classification number: C01B21/40 ,  B01D53/8628 ,  B01D53/869 ,  B01D2255/2065 ,  B01D2255/20738 ,  B01D2255/20746 ,  B01D2255/20761 ,  B01D2255/502 ,  B01D2255/504 ,  B01D2257/402 ,  B01D2257/404 ,  B01J29/072 ,  B01J29/46 ,  B01J29/68 ,  B01J29/7615 ,  B01J2229/42 ,  C01B21/265 ,  C01B21/38 ,  Y02C20/10 ,  Y02P20/153

Abstract: The invention relates to a process and apparatus for preparing nitric acid by catalytic oxidation of NH3 by means of oxygen and subsequent reaction of the NOx formed with an absorption medium in an absorption tower, which comprises a catalyst bed for N2O decomposition arranged in the process gas downstream of the catalytic NH3 oxidation and upstream of the absorption tower in the flow direction and a catalyst bed for NOx reduction and effecting a further decrease in the amount of N2O arranged in the tailgas downstream of the absorption tower in the flow direction, wherein the amount of N2O removed in the catalyst bed for N2O removal arranged in the process gas is not more than that which results in an N2O content of >100 ppmv and a molar N2O/NOx ratio of >0.25 before entry of the tailgas into the catalyst bed for NOx reduction and the catalyst bed for NOx reduction and effecting a further decrease in the amount of N2O arranged in the tailgas contains at least one iron-loaded zeolite catalyst and NH3 is added to the tailgas before entry into the catalyst bed in such an amount that an NOx concentration of

公开(公告)号：US09802181B2

公开(公告)日：2017-10-31

申请号：US15004662

申请日：2016-01-22

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Christine N. Elia ,  Shifang L. Luo ,  Hari Nair ,  Wenyih F. Lai ,  Robert G. Tinger

IPC: C07C6/12 ,  C07C4/18 ,  B01J29/80 ,  B01J35/10 ,  B01J29/22 ,  B01J29/24 ,  B01J29/44 ,  B01J29/46 ,  B01J8/04 ,  B01J37/18 ,  B01J29/67 ,  B01J29/68 ,  B01J29/74 ,  B01J29/76 ,  B01J35/00 ,  B01J35/02 ,  C01B39/26

CPC classification number: B01J29/80 ,  B01J8/04 ,  B01J29/22 ,  B01J29/24 ,  B01J29/44 ,  B01J29/46 ,  B01J29/67 ,  B01J29/68 ,  B01J29/74 ,  B01J29/7446 ,  B01J29/7453 ,  B01J29/7461 ,  B01J29/7476 ,  B01J29/7484 ,  B01J29/7492 ,  B01J29/76 ,  B01J29/7646 ,  B01J29/7653 ,  B01J29/7661 ,  B01J29/7676 ,  B01J29/7684 ,  B01J29/7692 ,  B01J35/002 ,  B01J35/023 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1023 ,  B01J35/1033 ,  B01J35/1052 ,  B01J35/108 ,  B01J37/0201 ,  B01J37/18 ,  B01J37/30 ,  B01J2208/027 ,  B01J2229/186 ,  B01J2229/42 ,  C01B39/265 ,  C07C4/18 ,  C07C6/126 ,  C07C15/06 ,  C07C2521/04 ,  C07C2529/18 ,  C07C2529/22 ,  C07C2529/24 ,  C07C2529/26 ,  C07C2529/40 ,  C07C2529/44 ,  C07C2529/46 ,  C07C2529/80 ,  C07C2529/87 ,  Y02P20/52

Abstract: Disclosed are a catalyst system and its use in a process for the conversion of a feedstock containing C8+ aromatic hydrocarbons to produce light aromatic products, comprising benzene, toluene and xylene. The catalyst system comprises (a) a first catalyst bed comprising a first catalyst composition, said first catalyst composition comprising a zeolite having a constraint index of 3 to 12 combined (i) optionally with at least one first metal of Group 10 of the IUPAC Periodic Table, and (ii) optionally with at least one second metal of Group 11 to 15 of the IUPAC Periodic Table; and (b) a second catalyst bed comprising a second catalyst composition, said second catalyst composition comprising (i) a meso-mordenite zeolite, combined (ii) optionally with at least one first metal of Group 10 of the IUPAC Periodic Table, and (iii) optionally with at least one second metal of Group 11 to 15 of the IUPAC Periodic Table, wherein said meso-mordenite zeolite is synthesized from TEA or MTEA and having a mesopore surface area of greater than 30 m2/g and said meso-mordenite zeolite comprises agglomerates composed of primary crystallites, wherein said primary crystallites have an average primary crystal size as measured by TEM of less than 80 nm and an aspect ratio of less than 2.