Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
6.3
3.9
Journals
Catalysts
Special Issues
Design Challenges for Catalytic and Photocatalytic Reactors
share announcement

Design Challenges for Catalytic and Photocatalytic Reactors

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Catalytic Materials".

Deadline for manuscript submissions: closed (31 March 2018) | Viewed by 10477

Special Issue Editor

Prof. Dr. Ilenia Rossetti

E-Mail Website
Guest Editor
Dip. Chimica, Università degli Studi di Milano, Via C. Golgi 19, 20133 Milano, Italy
Interests: photocatalysis; heterogeneous catalysis; process design; valorization of renewable raw materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Appropriate design of catalytic and photocatalytic reactors is the key for process development. Different types of catalytic reactors were proposed to cope with the variety of applications, where heat and mass transfer, as well as pressure drop could limit the reaction in some way, due, e.g., to productivity, selectivity or safety issues. Therefore, in catalytic applications, the concepts of reactivity, kinetics, transport phenomena and reactor modelling are intimately in contact, in order to provide detailed sizing and the correct prevision of reactor performance. Conversely the applications span from super-giant plants (e.g. the case of ammonia synthesis), to catalytic and photocatalytic microreactors. Photocatalysis, on its side, extends somehow the complexity of catalytic reactors scale-up due to additional important effect of irradiation and the need of transparent windows/surfaces, which impose different design requirements. In this, it represents another frontier for process scale up, based on the spreading interest of photocatalysis for widely different applications. This special issue collects original research papers, reviews and commentaries focused on the challenges for reactor design and modelling, specifically applied to the development of catalytic and photocatalytic processes. Submissions are welcome especially (but not exclusively) in the following areas:

- Kinetics of catalytic and photocatalytic reactions

- Sizing and modelling of catalytic and photocatalytic reactors

- Transport phenomena in catalytic and photocatalytic processes

- Modelling flow in catalytic and photocatalytic reactors

- Computational Fluid Dynamics applied to catalytic and photocatalytic reactors.

- Process design and scale up issues

- Process simulation

- Innovative concepts of reactors and microreactors for catalytic and photocatalytic applications

Assoc. Prof. Ilenia Rossetti
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 submissions that pass pre-check are 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 2700 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

  • Catalytic reactors
  • Photocatalytic reactors
  • Transport phenomena
  • Process design
  • Reactor modelling
  • Computational Fluid Dynamics
  • Kinetics

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

14 pages, 11223 KiB  
Article
Improved Kinetic Data Acquisition Using An Optically Accessible Catalytic Plate Reactor with Spatially-Resolved Measurement Techniques. Case of Study: CO2 Methanation
by Jose A. Hernandez Lalinde, Kevin Kofler, Xuejie Huang and Jan Kopyscinski
Catalysts 2018, 8(2), 86; https://doi.org/10.3390/catal8020086 - 21 Feb 2018
Cited by 12 | Viewed by 5161
Abstract
Modelling and optimization of chemical reactors require a good understanding of the reactions mechanism with the corresponding kinetic description. Therefore, high quality kinetic data are needed, which can be challenging to obtain, especially for fast and highly exothermic reactions such as the CO [...] Read more.
Modelling and optimization of chemical reactors require a good understanding of the reactions mechanism with the corresponding kinetic description. Therefore, high quality kinetic data are needed, which can be challenging to obtain, especially for fast and highly exothermic reactions such as the CO2 methanation. Traditionally, kinetic studies rely on measuring the exit gas composition (1 data point per species and experiment) using differential reactors with diluted catalyst beds and reactants to avoid temperature change. Therefore, an optically accessible catalytic channel reactor was designed, which allowed for the chance to gather spatially-resolved information on axial gas composition and catalyst surface temperature, specifically by means of a movable sampling capillary and shortwave infrared-thermography (SWIR), respectively. A catalyst coated plate was placed at the bottom of the channel, while a set of two quartz glass plates covers the top. In the current study 35 data points per gas species were collect for 1 experiment conducted under laminar flow conditions at 425 °C. Catalyst surface temperature determined via a SWIR camera was not influenced by polyatomic molecules partaking in the reaction and thus did not falsify the kinetic data. The catalyst mass distribution along the reactor axis was determined, enabling the development of a correct reactor model for kinetic parameter estimation and model discrimination. Full article
(This article belongs to the Special Issue Design Challenges for Catalytic and Photocatalytic Reactors)
►▼ Show Figures

Figure 1

3670 KiB  
Article
Metal Oxide Nanoparticles Supported on Macro-Mesoporous Aluminosilicates for Catalytic Steam Gasification of Heavy Oil Fractions for On-Site Upgrading
by Daniel López, Lady J. Giraldo, Juan P. Salazar, Dioni M. Zapata, Diana C. Ortega, Camilo A. Franco and Farid B. Cortés
Catalysts 2017, 7(11), 319; https://doi.org/10.3390/catal7110319 - 29 Oct 2017
Cited by 24 | Viewed by 4743
Abstract
Catalytic steam gasification of extra-heavy oil (EHO) fractions was studied using functionalized aluminosilicates, with NiO, MoO3, and/or CoO nanoparticles with the aim of evaluating the synergistic effect between active phase and the support in heavy oil on-site upgrading. Catalysts were characterized [...] Read more.
Catalytic steam gasification of extra-heavy oil (EHO) fractions was studied using functionalized aluminosilicates, with NiO, MoO3, and/or CoO nanoparticles with the aim of evaluating the synergistic effect between active phase and the support in heavy oil on-site upgrading. Catalysts were characterized by chemical composition through X-ray Fluorescence, surface area, and pore size distribution through N2 adsorption/desorption, catalyst acidity by temperature programmed desorption (TPD), and metal dispersion by pulse H2 chemisorption. Batch adsorption experiments and catalytic steam gasification of adsorbed heavy fractions was carried out by thermogravimetric analysis and were performed with heavy oil model solutions of asphaltenes and resins (R–A) in toluene. Effective activation energy estimation was used to determine the catalytic effect of the catalyst in steam gasification of Colombian EHO. Additionally, R–A decomposition under inert atmosphere was conducted for the evaluation of oil components reactions with active phases and steam atmosphere. The presence of a bimetallic active phase Inc.reases the decomposition of the heavy compounds at low temperature by an increase in the aliphatic chains decomposition and the dissociation of heteroatoms bonds. Also, coke formation after steam gasification process is reduced by the application of the bimetallic catalyst yielding a conversion greater than 93%. Full article
(This article belongs to the Special Issue Design Challenges for Catalytic and Photocatalytic Reactors)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop