公开(公告)号：US20210213423A1

公开(公告)日：2021-07-15

申请号：US15733841

申请日：2019-05-28

Applicant: BASF SE

Inventor： Matthias Georg SCHWAB ,  Esther GROENEVELD ,  Peter BERBEN ,  Harry BOUWMAN ,  Willem DIJKSTRA ,  Bart MICHIELSEN ,  Jasper LEFEVERE

IPC: B01J21/04 ,  B01J35/04 ,  B01J35/06 ,  B01J35/10 ,  B01J35/00 ,  B01J37/00 ,  B01J37/04 ,  B01J37/08 ,  C07C1/24 ,  C07C5/27 ,  B33Y10/00 ,  B28B1/00 ,  B28B11/24 ,  B29C64/106

Abstract: A method for producing a three-dimensional porous transition alumina catalyst monolith of stacked catalyst fibers, comprising the following steps: a) Preparing a suspension paste in a liquid diluent of hydroxide precursor particles or oxyhydroxide precursor particles of transition alumina particles or mixtures thereof and which suspension can furthermore comprise a binder material in a maximum amount of 20 wt %, based on the amount of hydroxide precursor particles or oxyhydroxide precursor particles of transition alumina particles or mixtures thereof and/or a plasticizer and/or a dopant in a maximum amount of 10 wt %, based on the amount of hydroxide precursor particles or oxyhydroxide precursor particles of transition alumina particles or mixtures thereof, all particles in the suspension having a number average particle size in the range of from 0.05 to 700 μm, b) extruding the paste of step a) through one or more nozzles to form fibers, and depositing the extruded fibers to form a three-dimensional porous catalyst monolith precursor, c) drying the porous catalyst monolith precursor to remove the liquid diluent, d) performing a temperature treatment of the dried porous catalyst monolith precursor of step c) at a temperature in the range of from 500 to 1000° C., to form the transition alumina catalyst monolith, wherein no temperature treatment of the porous catalyst monolith precursor or porous catalyst monolith at temperatures above 1000° C. is performed and wherein no further catalytically active metals, metal oxides or metal compounds are applied to the surface of the transition alumina precursor particles, the catalyst monolith precursor or transition alumina catalyst monolith. no further catalytically active metals, metal oxides or metal compounds are present in the suspension paste.

公开(公告)号：US20220314209A1

公开(公告)日：2022-10-06

申请号：US17626838

申请日：2020-07-16

Applicant: BASF SE

Inventor： Marco Oskar KENNEMA ,  Bart MICHIELSEN ,  Jasper LEFEVERE ,  Christian WALSDORFF ,  Fred BORNINKHOF ,  Florian SCHARF

IPC: B01J35/04 ,  B01J37/00 ,  B01J37/16 ,  B01J20/28 ,  B33Y80/00 ,  B33Y10/00 ,  B33Y40/20 ,  B22F10/18 ,  B22F5/10 ,  B22F10/64 ,  B33Y40/10

Abstract: A three-dimensional porous catalyst, catalyst carrier or absorbent structure of stacked strands of catalyst, catalyst carrier or absorbent material, composed of layers of spaced-apart parallel strands, wherein parallel strands within a layer are arranged in groups of two or more closely spaced-apart, equidistant strands separated by a small distance, wherein the groups of equidistant strands are separated from adjacent strands or adjacent groups of strands by a larger distance.

公开(公告)号：US20220072524A1

公开(公告)日：2022-03-10

申请号：US17291157

申请日：2019-11-04

Applicant: BASF SE ,  VITO NV

Inventor： Christian WALSDORFF ,  Marco Oskar KENNEMA ,  Miguel Angel ROMERO VALLE ,  Florian SCHARF ,  Dirk HENSEL ,  Juergen ZUEHLKE ,  Fred BORNINKHOF ,  Bart MICHIELSEN ,  Jasper LEFEVERE

IPC: B01J35/04 ,  B01J35/00 ,  B01J37/08 ,  B01J35/06 ,  B01J37/00 ,  B01J8/02 ,  B01J35/10 ,  B01J35/02

Abstract: A three-dimensional porous catalyst, catalyst carrier or absorbent monolith of stacked strands of catalyst, catalyst carrier or absorbent material, composed of alternating layers of linear spaced-apart parallel strands, wherein the strands in alternating layers are oriented at an angle to one another, wherein the distance between inner spaced-apart parallel strands is larger than the distance between outer spaced-apart parallel strands in at least a part of the layers of the monolith.

公开(公告)号：US20210260564A1

公开(公告)日：2021-08-26

申请号：US17270978

申请日：2019-08-07

Applicant: BASF SE ,  VITO NV

Inventor： Marco Oskar KENNEMA ,  Christian WALSDORFF ,  Bart MICHIELSEN ,  Jasper LEFEVERE

IPC: B01J20/30 ,  B01J37/00 ,  B01J37/08 ,  B29C64/118 ,  B29C64/171 ,  B29C64/209 ,  B29C64/227 ,  B33Y10/00

Abstract: Process for producing shaped bodies of catalysts, catalyst supports or adsorbents by microextrusion in which a pasty extrusion composition of a shaped body precursor material is extruded through a movable microextrusion nozzle and through movement of the microextrusion nozzle a shaped body precursor is constructed in layerwise fashion and the shaped body precursor is subsequently subjected to a thermal treatment, wherein for construction of each shaped body precursor the pasty extrusion composition is simultaneously extruded through a plurality of microextrusion nozzles.