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Catalysts
Special Issues
Catalytic Combustion - From Laboratory Tests to Practical Applications
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Catalytic Combustion - From Laboratory Tests to Practical Applications

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

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 2752

Special Issue Editors

Prof. Dr. Anton Naydenov

E-Mail Website
Guest Editor
Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
Interests: environmental catalysis; reaction kinetics; mechanistic models of catalytic reactions; experimental investigation and mathematical modeling of different types of catalytic reactors; development of computation procedures for identifying the kinetics and mechanisms of catalytic reactions
Special Issues, Collections and Topics in MDPI journals
Dr. Ralitsa Georgieva

E-Mail Website
Guest Editor
Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria
Interests: environmental catalysts; VOCs combustion; synthesis of catalysts; characterization; instrumental methods

Special Issue Information

Dear Colleagues,

Volatile organic compounds (VOCs) are major air pollutants today. Their origin is usually associated with various sources, such as transport and industrial processes, as well as household products. One of the most promising technologies for their elimination at low concentrations is catalytic combustion. The development of systems for the catalytic neutralization of gases containing VOCs, incl. methane, propane, butane and organic solvents, requires the application of a number of systematic research approaches related to the creation of new types of catalysts based on different noble metals or transition metal oxides. The application of specific experimental approaches to determine the parameters of heterogeneous-catalytic reactions with a view to their subsequent application in the modeling of reactors to reduce waste gas emissions is of great interest.

This Special Issue focuses on the design of various catalytic systems for conducting tests on different scales: from laboratory catalytic reactors to pilot plants, as well as experimental installations for obtaining data on the poisoning, thermal and hydrothermal stability and in situ regeneration of catalysts is very important from a practical point of view.

Prof. Dr. Anton Naydenov
Dr. Ralitsa Georgieva
Guest Editors

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 combustion
  • waste gases
  • VOCs
  • laboratory tests
  • reactor modelling
  • reactor scale-up
  • industrial reactor

Published Papers (2 papers)

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Research

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18 pages, 3231 KiB  
Article
Highly Efficient RGO-Supported Pd Catalyst for Low Temperature Hydrocarbon Oxidation
by Ralitsa Velinova, Anton Naydenov, Diana Kichukova, Ventsislav Tumbalev, Genoveva Atanasova, Daniela Kovacheva and Ivanka Spassova
Catalysts 2023, 13(8), 1224; https://0-doi-org.brum.beds.ac.uk/10.3390/catal13081224 - 20 Aug 2023
Cited by 1 | Viewed by 887
Abstract
The work presents Pd-containing catalysts for practical application with enhanced low-temperature activity in the complete oxidation of volatile organic compounds (VOCs) using innovative combinations of reduced graphene oxide (RGO) and alumina. The catalysts were characterized by XRD, SEM, TEM, XPS, low-temperature N2 [...] Read more.
The work presents Pd-containing catalysts for practical application with enhanced low-temperature activity in the complete oxidation of volatile organic compounds (VOCs) using innovative combinations of reduced graphene oxide (RGO) and alumina. The catalysts were characterized by XRD, SEM, TEM, XPS, low-temperature N2-adsorption, and CO chemisorption. The tests on complete catalytic oxidation of different VOC (propane, butane, hexane, dimethyl ether, toluene, propylene) and CO were carried out. The reaction kinetics and the mechanism of the reaction of complete oxidation of toluene are being investigated in detail. The results show that the new catalyst design makes it able to completely oxidize the studied VOCs and CO at low temperatures (100–350 °C) with long-term stability. Using a variety of instrumental methods, it was established that for high activity and long-term stability, the optimal ratio Pd/PdO should be close to 1:1. The most probable mechanism of complete toluene oxidation is the mechanism of Langmuir–Hinshelwood. The high activity and the weak effect of water on the catalyst performance leads to further perspectives for the application of the currently developed approach for the preparation of large-scale monolithic catalytic systems for air pollution control. Full article
(This article belongs to the Special Issue Catalytic Combustion - From Laboratory Tests to Practical Applications)
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Review

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25 pages, 3621 KiB  
Review
Methane Combustion over Zeolite-Supported Palladium-Based Catalysts
by Jinxiong Tao, Yuxi Liu, Jiguang Deng, Lin Jing, Zhiquan Hou, Lu Wei, Zhiwei Wang and Hongxing Dai
Catalysts 2023, 13(9), 1251; https://0-doi-org.brum.beds.ac.uk/10.3390/catal13091251 - 29 Aug 2023
Cited by 2 | Viewed by 1457
Abstract
The emission of methane leads to the increase in the methane concentration in the atmosphere, which not only wastes resources but also intensifies the greenhouse effect and brings about serious environmental problems. Catalytic combustion can completely convert methane into carbon dioxide and water [...] Read more.
The emission of methane leads to the increase in the methane concentration in the atmosphere, which not only wastes resources but also intensifies the greenhouse effect and brings about serious environmental problems. Catalytic combustion can completely convert methane into carbon dioxide and water at low temperatures. However, the catalytic activities of the conventional supported palladium catalysts (e.g., Pd/Al2O3 and Pd/ZrO2) are easy to decrease or the two catalysts can even be deactivated under actual harsh reaction conditions (high temperatures, steam- and sulfur dioxide-containing atmospheres, etc.). Recently, noble metal catalysts supported on zeolites with ordered pores and good thermal stability have attracted much attention. This review article summarizes the recent progress on the development and characteristics of zeolite-supported noble metal catalysts for the combustion of methane. The effects of framework structures, silica/alumina ratios, acidity, doping of alkali metals or transition metals, particle sizes and distributions, and their locations of/in the zeolites on methane combustion activity are discussed. The importance of developing high-performance catalysts under realistic operation conditions is highlighted. In addition, the related research work on catalytic methane combustion in the future is also envisioned. Full article
(This article belongs to the Special Issue Catalytic Combustion - From Laboratory Tests to Practical Applications)
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