Work

Role of Pellet Geometry Controlled by 3D Printing on Catalytic Performance of Mn–Na2WO4-Based Systems in Oxidative Coupling of Methane

Year: 2024

Type: article

Abstract: Pellet catalysts dedicated to oxidative coupling of methane (OCM) were prepared with the assistance of 3D printing technology using the casting technique. In this approach, polymeric templates printed using digital light processing technology were applied for pellet catalyst shaping. Three series of cubic-type catalysts varying in external size and number of channels were produced by a one-step procedure of the templates filling with the paste containing Mn 2 O 3, Na 2 WO 4, α-Al 2 O 3, and sodium silicate solution. The pellets containing 2 wt % of Mn 2 O 3 and 5 wt % of Na 2 WO 4 were characterized by X-ray fluorescence, X-ray diffraction, UV–vis diffuse reflectance, temperature-programmed reduction with H 2, scanning electron microscopy–energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy techniques and tested in OCM. The pellet catalysts exhibited excellent catalytic performance and stability vs time on stream. It has been found that the size of the pellets and their geometry have an impact on the catalytic performance and pumping resistance through the catalyst bed (drop pressure).

Source: Industrial & Engineering Chemistry Research

DOI: 10.1021/acs.iecr.4c02910

Authors: Marcelina Nowakowska, Mariya Myradova, Anna Rokicińska, Piotr Kuśtrowski, Piotr Michorczyk

Institutions: Cracow University of Technology, Jagiellonian University

Language: English

Topic: Catalysis and Oxidation Reactions

Subfield: Catalysis

Field: Chemical Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: green

Funders: European Commission, Narodowe Centrum Nauki