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Main Title: Multi-Scale Studies of 3D Printed Mn−Na−W/SiO2 Catalyst for Oxidative Coupling of Methane
Author(s): Karsten, Tim
Middelkoop, Vesna
Matras, Dorota
Vamvakeros, Antonis
Poulston, Stephen
Grosjean, Nicolas
Rollins, Benjamin
Gallucci, Fausto
Godini, Hamid R.
Jacques, Simon D. M.
Beale, Andrew M.
Repke, Jens-Uwe
Type: Article
Abstract: This work presents multi-scale approaches to investigate 3D printed structured Mn–Na–W/SiO2 catalysts used for the oxidative coupling of methane (OCM) reaction. The performance of the 3D printed catalysts has been compared to their conventional analogues, packed beds of pellets and powder. The physicochemical properties of the 3D printed catalysts were investigated using scanning electron microscopy, nitrogen adsorption and X-ray diffraction (XRD). Performance and durability tests of the 3D printed catalysts were conducted in the laboratory and in a miniplant under real reaction conditions. In addition, synchrotron-based X-ray diffraction computed tomography technique (XRD-CT) was employed to obtain cross sectional maps at three different positions selected within the 3D printed catalyst body during the OCM reaction. The maps revealed the evolution of catalyst active phases and silica support on spatial and temporal scales within the interiors of the 3D printed catalyst under operating conditions. These results were accompanied with SEM-EDS analysis that indicated a homogeneous distribution of the active catalyst particles across the silica support.
Subject(s): oxidative coupling of methane
fixed bed reactors
3D printed catalysts
X-ray diffraction computed tomography
operando chemical imaging
Issue Date: 24-Feb-2021
Date Available: 10-Mar-2021
Language Code: en
DDC Class: 540 Chemie und zugeordnete Wissenschaften
Sponsor/Funder: EC/H2020/679933/EU/MEthane activation via integrated MEmbrane REactors/MEMERE
DFG, 414044773, Open Access Publizieren 2021 - 2022 / Technische Universität Berlin
Journal Title: Catalysts
Publisher: MDPI
Volume: 11
Issue: 3
Article Number: 290
Publisher DOI: 10.3390/catal11030290
EISSN: 2073-4344
TU Affiliation(s): Fak. 3 Prozesswissenschaften » Inst. Prozess- und Verfahrenstechnik » FG Dynamik und Betrieb technischer Anlagen
Appears in Collections:Technische Universität Berlin » Publications

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