Special Issue "Novel Structured Catalytic Reactors"

A special issue of Catalysts (ISSN 2073-4344).

Deadline for manuscript submissions: 15 February 2020.

Special Issue Editor

Guest Editor
Dr. Gianluca Landi Website E-Mail
CNR, Inst Res Combust, Ple Tecchio 80, I-80125 Naples, Italy
Interests: Development of structured multi-functional and hybrid catalytic reactors; Hydrogen/syngas production (steam/dry/tri- reforming, partial oxidation, CO2/H2O solar thermochemical splitting); catalytic upgrading of by-products and/or waste streams (glycerol, waste organic solvents); environmental catalysis (deNOx, DPF, VOC, CH4 abatement); hydrogen purification for fuel cells (CO-PROX); high pressure catalytic combustion

Special Issue Information

Dear Colleagues,

Robustness, low pressure drops, and high catalyst efficiency are some of the key features that have allowed for structured catalytic reactors penetrating into the technological market in the past decades. For instance, they are the main technology used in the pollutant abatement (TWC, DPF, stationary and mobile SCR, etc.).

On the other hand, drawbacks, such as low volumetric catalyst density (requiring large reactor volumes), limiting mass transfer from the gas to the solid phase (especially in honeycomb monolith where laminar flow prevails), low thermal conductivity in ceramic monoliths, or adhesion problems on metallic substrates, have stimulated researchers worldwide, and, consequently, novel structured catalytic reactors and/or novel preparation approaches have been studied, leading to structured systems with improved features.

In particular, hybrid systems (such as packed foams), multi-functional and/or multi-scale “hierarchical” (based on 3-DOM and/or inverse opal structure) catalytic reactors, and micro-reactors have been investigated. The benefits included (but were not limited to) improved transport properties and process intensification. Advanced structured catalytic reactors also required the development of novel preparation techniques. Among others, there will be particular attention to 3D printing, multi-scale (from nano to macro) assembling, and electro-deposition.

A key feature of the structured catalytic reactors is the co-occurrence of multiple chemical and physical phenomena (mass transfer to, inside, and from the catalytic layer, radial, and axial heat transfer, and a chemical reaction on the catalyst surface), related not only to the intrinsic features of the active phase, but also to the substrate properties. In this respect, several phenomena have been understood and/or previewed by numerical studies, especially by CFD simulations.

This Special Issue will be focused on the recent advances in the novel structured catalytic reactors configurations and advanced preparation techniques. Both experimental and numerical studies are welcome.

Dr. Gianluca Landi
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Catalysts is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Multi-functional structured catalysts
  • Hybrid structured catalysts
  • Hierarchical structured catalysts
  • 3D printing
  • Electro-deposition
  • CFD simulations
  • Heat and mass transport properties in structured catalysts

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

Open AccessArticle
Metal Foams as Novel Catalyst Support in Environmental Processes
Catalysts 2019, 9(7), 587; https://doi.org/10.3390/catal9070587 - 05 Jul 2019
Abstract
Metal foams are considered as promising catalyst carriers due to their high porosity, large specific surface area, and satisfactory thermal and mechanical stability. The study presents heat transfer and pressure drop experiments performed for seven foams of different pore densities made from diverse [...] Read more.
Metal foams are considered as promising catalyst carriers due to their high porosity, large specific surface area, and satisfactory thermal and mechanical stability. The study presents heat transfer and pressure drop experiments performed for seven foams of different pore densities made from diverse metals. Mass transfer characteristics are derived using the Chilton–Colburn analogy. It was found that the foams display much more intense heat/mass transfer than a monolith, comparable to packed bed. Next, the foams’ efficiencies have been compared, using 1D reactor modeling, in catalytic reactions displaying either slower (selective catalytic reduction of NOx) or faster kinetics (catalytic methane combustion). For the slow kinetics, the influence of carrier specific surface area at which catalyst can be deposited (i.e., catalyst amount) was decisive to achieve high process conversion and short reactor. For this case, monolith appears as the best choice assuming it’s the lowest pressure drop. For the fast reaction, the mass transfer becomes the limiting parameter, thus solid foams are the best solution. Full article
(This article belongs to the Special Issue Novel Structured Catalytic Reactors)
Show Figures

Graphical abstract

Back to TopTop