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：US20200016584A1

公开(公告)日：2020-01-16

申请号：US16464998

申请日：2017-11-29

Applicant: BASF SE

Inventor： Esther GROENEVELD ,  Peter BERBEN ,  Bernard REESINK

IPC: B01J35/06 ,  B01J23/755 ,  B01J35/04 ,  B01J35/10 ,  B01J37/03 ,  B29C64/106 ,  B29C64/165

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.

公开(公告)号：US20190381491A1

公开(公告)日：2019-12-19

申请号：US16465019

申请日：2017-11-29

Applicant: BASF SE

Inventor： Esther GROENEVELD ,  Peter BERBEN ,  Bernard REESINK

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

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.