公开(公告)号：US11547981B2

公开(公告)日：2023-01-10

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 ,  B33Y10/00 ,  B29C64/106 ,  B01J35/00 ,  B01J35/04 ,  B01J35/06 ,  B01J35/10 ,  B01J37/00 ,  B01J37/04 ,  B01J37/08 ,  B28B1/00 ,  B28B11/24 ,  C07C1/24 ,  C07C5/27 ,  B33Y70/00 ,  B33Y80/00 ,  B29K509/02

Abstract: A method for producing a three-dimensional porous transition alumina catalyst monolith of stacked catalyst fibers, comprising:
a) Preparing a paste in a liquid diluent of hydroxide precursor particles and/or oxyhydroxide precursor particles of transition alumina particles, 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 nozzle(s) to form fibers, and depositing the extruded fibers to form a three-dimensional porous catalyst monolith precursor,
c) drying the precursor to remove the liquid diluent,
d) performing a temperature treatment of the dried porous catalyst monolith precursor 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.

公开(公告)号：US11439996B2

公开(公告)日：2022-09-13

申请号：US16465019

申请日：2017-11-29

Applicant: BASF SE

Inventor： Esther Groeneveld ,  Peter Berben ,  Bernard Reesink

IPC: B01J37/03 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  B29C64/165 ,  B01J21/08 ,  B01J23/755 ,  B01J35/00 ,  B01J35/02 ,  B01J35/04 ,  B01J35/06 ,  B01J37/00 ,  B01J37/02 ,  B01J37/18 ,  B29C64/106 ,  B01J35/10

Abstract: A method for producing a three-dimensional porous catalyst monolith of stacked catalyst fibers, comprising the following steps: a) Preparing a suspension paste in a liquid diluent of metal, metal alloy and/or metal oxide particles of catalytically active metal or metal alloy in which the metals, metal alloy and metal oxide particles can be supported on or mixed with inorganic oxide catalyst support particles, and which suspension can furthermore comprise a binder material, all particles in the suspension having an average particle size in the range of from 0.5 to 500 μm, b) extruding the paste of step a) through one or more nozzles preferably having a maximum diameter of less than 5 mm, more preferably less than 1 mm 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) if necessary, reducing the metal oxide(s) in the porous catalyst monolith precursor to form the catalytically active metal or metal alloy, wherein no temperature treatment of the porous catalyst monolith precursor or porous catalyst monolith at temperatures above 1000° C. is performed.

公开(公告)号：US11439995B2

公开(公告)日：2022-09-13

申请号：US16464998

申请日：2017-11-29

Applicant: BASF SE

Inventor： Esther Groeneveld ,  Peter Berben ,  Bernard Reesink ,  Bart Michielsen ,  Jasper Lefevere

IPC: B01J37/03 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  B29C64/165 ,  B01J21/08 ,  B01J23/755 ,  B01J35/00 ,  B01J35/02 ,  B01J35/04 ,  B01J35/06 ,  B01J37/00 ,  B01J37/02 ,  B01J37/18 ,  B29C64/106 ,  B01J35/10

Abstract: A three-dimensionally structured porous catalyst monolith of stacked catalyst fibers with a fiber diameter of less than 1 mm made from one or more continuous fibers or stacked individual fibers, wherein the stacked catalyst fibers are arranged in a regular, recurring stacking pattern of fiber layers to form the three-dimensionally structured monolith, and wherein in each of the stacked fiber layers at least 50 wt % of the fibers are arranged parallel to each other and spatially separated from each other, or in a cobweb pattern, and wherein the side crushing strength of the monolith is at least 60 N.