公开(公告)号：US20170334721A1

公开(公告)日：2017-11-23

申请号：US15638714

申请日：2017-06-30

Applicant: YARA INTERNATIONAL ASA

Inventor： David Waller

IPC: C01B21/26 ,  B01J23/86 ,  B01J23/00 ,  B01J23/75 ,  B01J37/03 ,  B01J23/889

CPC classification number: C01B21/265 ,  B01J23/002 ,  B01J23/005 ,  B01J23/75 ,  B01J23/864 ,  B01J23/8892 ,  B01J37/03

Abstract: The present invention provides a catalyst for production of nitric oxide from ammonia and oxygen. The catalyst has the composition A3-xBxO9-y, wherein A and B are selected from the group Mn, Co, Cr, Fe and Al, x is between 0 and 3 and y is between 0 and 6. The catalyst has a high selectivity towards nitric oxide and a low ignition temperature in the reactor. Further the present invention relates to a method for the production of gas comprising nitric oxide by the catalyst of the present invention. The produced gas has a low content of nitrous oxide.

公开(公告)号：US09675963B2

公开(公告)日：2017-06-13

申请号：US14762503

申请日：2014-01-24

Applicant: YARA INTERNATIONAL ASA

Inventor： David Waller ,  Marianne Søbye Grønvold ,  Nibal Sahli

IPC: B01J23/889 ,  B01J23/00 ,  C01B21/26 ,  B01D53/94 ,  B01J23/83

CPC classification number: B01J23/8892 ,  B01D53/94 ,  B01D53/9436 ,  B01D2255/206 ,  B01D2255/2061 ,  B01D2255/2073 ,  B01D2255/20746 ,  B01J23/002 ,  B01J23/83 ,  B01J2523/00 ,  C01B21/265 ,  B01J2523/36 ,  B01J2523/375 ,  B01J2523/845

Abstract: The present invention relates to a catalytically active component of a catalyst, which comprises single phase oxides, based on a mixed yttrium-gadolinium ortho-cobaltate oxide systems, methods for the oxidation of ammonia and hydrocarbon in the presence of said catalytically active component and the use thereof.

公开(公告)号：US09084987B2

公开(公告)日：2015-07-21

申请号：US13864541

申请日：2013-04-17

Applicant: Yara International ASA

Inventor： David Waller ,  David M. Brackenbury

IPC: B01J23/83 ,  B01J20/30 ,  B01J35/00 ,  B01J35/04 ,  B01J37/00 ,  B01J37/08 ,  B28B1/24 ,  B28B7/18 ,  C04B35/50 ,  C04B35/628 ,  C04B35/632 ,  B01J23/00 ,  B01J23/75

CPC classification number: B01J23/83 ,  B01J20/3007 ,  B01J23/005 ,  B01J23/75 ,  B01J35/0006 ,  B01J35/04 ,  B01J37/0009 ,  B01J37/0018 ,  B01J37/0036 ,  B01J37/0045 ,  B01J37/088 ,  B28B1/24 ,  B28B7/18 ,  C04B35/50 ,  C04B35/62813 ,  C04B35/62886 ,  C04B35/632 ,  C04B2235/3217 ,  C04B2235/3229 ,  C04B2235/3275 ,  C04B2235/449 ,  C04B2235/6022 ,  Y02C20/10

Abstract: The invention relates to a process to produce catalysts by powder injection molding and the catalysts thereof, wherein the catalysts are made by preparing a ceramic formulation with temperature controlled rheological properties comprising catalytic components, heating the powder formulation up to at least the fluid state transition temperature, shaping a sample by injecting the fluid powder formulation into an injection mold followed by cooling the injected powder formulation below the fluid state transition temperature, de-binding the shaped sample, and sintering the shaped sample to form a ceramic catalyst. Alternatively the ceramic structure may be formed initially followed by a coating of the ceramic structure by one or more catalytic compounds.

Abstract translation: 本发明涉及通过粉末注射成型制备催化剂的方法及其催化剂，其中催化剂是通过制备具有温度控制的流变特性的陶瓷配方制成的，包括催化组分，将粉末制剂加热到至少流体状态转变温度 通过将流体粉末制剂注射到注射模具中，然后将注射的粉末制剂冷却至低于流体状态转变温度，去结合成形样品，以及烧结成形样品以形成陶瓷催化剂来成型样品。 或者，可以最初形成陶瓷结构，然后通过一种或多种催化化合物涂覆陶瓷结构。

公开(公告)号：US09403681B2

公开(公告)日：2016-08-02

申请号：US14762507

申请日：2014-01-24

Applicant: YARA INTERNATIONAL ASA

Inventor： David Waller ,  Marianne Søbye Grønvold ,  Nibal Sahli

IPC: B01J23/00 ,  B01J23/02 ,  B01J23/10 ,  B01J23/32 ,  B01J23/40 ,  B01J23/42 ,  B01J23/56 ,  B01J23/58 ,  B01J23/70 ,  B01J23/74 ,  B01J21/04 ,  C01B21/38 ,  B01J23/83 ,  B01J23/889 ,  C01B21/26

CPC classification number: C01B21/38 ,  B01J23/002 ,  B01J23/83 ,  B01J23/8892 ,  B01J2523/00 ,  C01B21/265

Abstract: The present invention relates to a catalytically active component of a catalyst, which comprises single phase oxides, based on a metal doped yttrium ortho-cobaltate oxide systems, methods for the oxidation of ammonia 5 and hydrocarbon in the presence of said catalytically active component and the use thereof.

Abstract translation: 本发明涉及一种催化剂的催化活性组分，其包含基于金属掺杂的邻钴酸钴氧化物体系的单相氧化物，在所述催化活性组分存在下氧化氨5和烃的方法， 使用它。

公开(公告)号：US10189017B2

公开(公告)日：2019-01-29

申请号：US14761642

申请日：2014-01-24

Applicant: YARA INTERNATIONAL ASA

Inventor： David Waller ,  Karl Isak Skau ,  Sang Baek Shin ,  Bent Erlend Vigeland

IPC: B01J35/04 ,  B01D53/86 ,  F01N3/28 ,  B32B3/12 ,  B01J19/24 ,  B01D53/90 ,  B01D53/94 ,  C04B38/00 ,  F01N3/022 ,  B01J20/28 ,  F01N3/20 ,  C04B111/00

Abstract: Ho Honeycomb monolith structure, especially for use in mass transfer-limited processes or processes for the selective catalytic reduction (SCR) of nitrogen oxides, comprising: a plurality of cell walls defining a plurality of polygonal channels, the plurality of cell walls and channels extending in parallel along a common direction from an entrance end to an outlet end of the structure in the fluid flow direction. The transversal cross section of a polygonal channel has the shape of a convex elongated polygon, wherein at least 50% of the internal angles between two adjacent walls of the convex polygon are above 90 degrees and wherein the cell diameter ratio LL/LS is greater than 1.5.