Konarova, Muxina and Aslam, Waqas and Ge, Lei and Ma, Qing and Tang, Fengqiu and Rudolph, Victor and Beltramini, Jorge Norberto (2017) Enabling process intensification by 3D printing of catalytic structures. ChemCatChem, 9 (21). pp. 4132-4138. ISSN 1867-3880
Abstract
Small-scale, intensified chemical reactors (i.e., process intensification) mediated by structured catalysts substantially diminishes the advantages of large-scale gas-to-liquid (transport fuels) process plants and can be realized at low capital costs, minimum energy consumption, and zero/small CO2 footprints. Current structured-catalysts approaches are complex and expensive; therefore, simple methods are crucial that are capable of depositing a desired geometry of catalysts into engineered channels. Herein, we developed printable composition by incorporating
nickel and molybdenum ions into water-soluble PVA and starch; the subsequent pyrolysis of organic compounds
resulted into three-dimensional carbon scaffold with
micro/macro interconnected pores (dpore, 6.5 a; dpore, 100 mm) containing up to 25 wt% catalyst loading. 2D (TEM, SEM) and 3D (X-ray computed tomography) microstructural analyses and catalytic tests (conversion of syngas to alcohols) were performed for 3D printed catalysts and compared with conventional pelleted catalysts. At a high feed flow rate (6000 h@1), CO conversion is rapidly reduced to 16 mol% for pelleted catalysts, whereas 3D printed catalysts converted 35 mol% of CO, with the same catalyst loading.
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| Item Type: | Article (Commonwealth Reporting Category C) |
|---|---|
| Refereed: | Yes |
| Item Status: | Live Archive |
| Additional Information: | Permanent restricted access to Published version, in accordance with the copyright policy of the publisher. |
| Faculty / Department / School: | Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering |
| Date Deposited: | 29 Mar 2018 03:13 |
| Last Modified: | 09 May 2018 00:27 |
| Uncontrolled Keywords: | carbon; microreactors; molybdenum; nickel; structure elucidation |
| Fields of Research : | 03 Chemical Sciences > 0306 Physical Chemistry (incl. Structural) > 030601 Catalysis and Mechanisms of Reactions 09 Engineering > 0904 Chemical Engineering > 090402 Catalytic Process Engineering |
| Socio-Economic Objective: | B Economic Development > 85 Energy > 8505 Renewable Energy > 850501 Biofuel (Biomass) Energy |
| Identification Number or DOI: | 10.1002/cctc.201700829 |
| URI: | http://eprints.usq.edu.au/id/eprint/33912 |
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