公开(公告)号：US20250041829A1

公开(公告)日：2025-02-06

申请号：US18718512

申请日：2022-12-16

Applicant: VITO NV

Inventor： Jasper LEFEVERE ,  Bart MICHIELSEN ,  Yoran DE VOS ,  David VOGELSANG SUAREZ

IPC: B01J20/28 ,  B01J20/30 ,  B33Y10/00 ,  B33Y80/00

Abstract: The invention relates to additive manufacturing an object for separation and/or conversion of a substance from a liquid by guiding the liquid therethrough. A build material is printed in a predetermined arrangement in order to form a three-dimensional monolith structure. The build material includes an active/activated material configured to interact with the liquid. The three-dimensional monolith structure is printed to define an inlet, an outlet and a plurality of flow channels arranged between the inlet and the outlet of the structure, wherein the plurality of flow channels define meandering flow paths between the inlet and the outlet, wherein at least one mixing region is provided within the structure, wherein the at least one mixing region is in fluid connection with at least a set of the plurality of flow channels such as to allow mixing of the liquid guided through said set of the plurality of flow channels.

公开(公告)号：US20240001608A1

公开(公告)日：2024-01-04

申请号：US18037952

申请日：2021-11-19

Applicant: VITO NV

Inventor： Bart MICHIELSEN ,  Jasper LEFEVERE

IPC: B29C64/182 ,  B29C64/393 ,  B29C64/209 ,  B29C64/118

CPC classification number: B29C64/182 ,  B29C64/393 ,  B29C64/209 ,  B29C64/118 ,  B33Y50/02

Abstract: A method and system for controlling an extrusion system (1) having a plurality of nozzle heads (7) for depositing a predetermined interconnected arrangement for concurrently forming individual three-dimensional structures (3) in parallel. An operation of each of the plurality of nozzle heads is monitored in order to detect failing nozzle heads, wherein a first value is calculated which is indicative of an average print time for finishing a number of three-dimensional structures when the print job is continued using one or more non-failing nozzle heads of the plurality of nozzle heads which are still operational, and a second value is calculated indicative of an average print time for finishing the number of three-dimensional structures when the print job is promptly interrupted and a new print job is initiated with the one or more failing nozzle heads of the plurality of nozzles heads being repaired. The controller is configured to restart the print job with the one or more failing nozzle heads being repaired, when the second value is smaller than the first value.

公开(公告)号：US20230347595A1

公开(公告)日：2023-11-02

申请号：US17569933

申请日：2020-07-17

Applicant: VITO NV

Inventor： Bart MICHIELSEN ,  Jasper LEFEVERE ,  Wim BOUWEN ,  Steven MULLENS ,  Marijn GYSEN ,  Erwin VAN HOOF

IPC: B29C64/393 ,  B29C64/255 ,  B33Y50/02 ,  B33Y10/00 ,  B29C64/118 ,  B33Y30/00

CPC classification number: B29C64/393 ,  B29C64/118 ,  B29C64/255 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29K2105/04

Abstract: A method and system for manufacturing a three-dimensional porous structure. Filaments are deposited in a predetermined interconnected arrangement in a plurality of stacked layers for forming a porous structure with interconnected pores. A pressure value indicative of a pressure being applied on the build material in the build material reservoir of a nozzle used for deposition is monitored during deposition of the filaments. The processing unit is configured to adjust at least one extrusion parameter in order to compensate for the irregular rising and/or falling of the pressure value.

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.