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3.9
Journals
Catalysts
Special Issues
Catalytic Recycling of Waste
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Catalytic Recycling of Waste

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

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 3090

Special Issue Editors

Dr. Yeshui Zhang

E-Mail Website
Guest Editor
Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
Interests: catalysis; waste pyrolysis/gasification; syngas; carbon nanotubes; ultrasound acoustic techniques; quartz crystal microbalance; Li-ion batteries
Special Issues, Collections and Topics in MDPI journals
Dr. George Manos

E-Mail Website
Guest Editor
Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
Interests: catalytic plastic pyrolysis; hydrocarbon reaction processes; catalyst deactivation and coking; statistical mechanics of adsorption
Dr. Chunfei Wu

E-Mail Website
Guest Editor
School of Chemistry and Chemical Engineering, Queen’s University Belfast, Belfast BT7 1NN, UK
Interests: catalytic conversion of biomass and plastic waste into fuels; energy and chemicals; CO2 capture and utilization; biochar production and application

Special Issue Information

Dear Colleagues,

An enormous amount of waste is produced globally every year that attracts people’s concern in terms of waste management, cost and pollution. There is a need to develop advanced technologies to manage these wastes. Thermo-chemical conversion, including pyrolysis and the catalytic gasification of carbonaceous wastes, is a promising technology compared to traditional waste treatment options (e.g., incineration and landfill). The process promotes the sustainable management of carbonaceous waste and realizes the potential value of these wastes. Pyrolysis–catalysis/catalytic gasification of carbonaceous waste processes is a promising and effective route to convert waste materials into profitable liquid, gaseous and solid products, and catalysts play an important role in these processes. As there are many products produced through thermo-chemical conversion of carbonaceous waste, the development of the technique is focused on the development of a catalyst and the production of valuable products which have great potential to reach higher recovery rates or economic values. The research scope in this Special Issue is not only limited to thermo-chemical process, but also includes other advanced techniques, such as hydrothermal, hydrolysis, and biological catalysis (e.g., fermentation) approaches.

Dr. Yeshui Zhang
Dr. George Manos
Dr. Chunfei Wu
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 pyrolysis and co-pyrolysis
  • catalytic gasification
  • catalytic hydrothermal conversion
  • biological catalysis
  • municipal waste
  • biomass waste
  • plastic waste
  • tires
  • fuel biochar
  • carbon nanotubes
  • modeling

Published Papers (1 paper)

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Research

19 pages, 17007 KiB  
Article
Dynamic Pyrolysis Characteristics, Kinetics and Products Analysis of Waste Tire Catalytic Pyrolysis with Ni/Fe-ZSM-5 Catalysts Using TG-IR-GC/MS
by Boyu Qu, Yulin Zhang, Tian Wang, Aimin Li, Zhiqiang Wu and Guozhao Ji
Catalysts 2021, 11(9), 1031; https://doi.org/10.3390/catal11091031 - 26 Aug 2021
Cited by 8 | Viewed by 2066
Abstract
Catalysts are usually used in the thermal conversion of waste tires to enhance the efficiency of the process and the quality of pyrolytic products. Recently, it has already been proved that Ni/Fe bimetallic catalysts had an effective catalytic effect on the thermal decomposition [...] Read more.
Catalysts are usually used in the thermal conversion of waste tires to enhance the efficiency of the process and the quality of pyrolytic products. Recently, it has already been proved that Ni/Fe bimetallic catalysts had an effective catalytic effect on the thermal decomposition of organic solid wastes. Herein, we employed a TG-IR-GC/MS system to investigate the kinetics and product analysis of waste tire catalytic pyrolysis using Ni/Fe bimetallic ZSM-5 as catalysts. Iso-conversional methods and master-plot methods were employed to estimate the activation energies and reaction model of waste tire catalytic pyrolysis. The results illustrated that the ZSM-5 loading with 7 wt.% Ni and 3 wt.% Fe had the best catalytic effect on decreasing the activation energies with a reduction of 13%. The determination of kinetic models showed that both non-catalyzed and catalyzed pyrolysis were fitted to a Fn model while the addition of a catalyst reduced the reaction order to varying degrees. Both FTIR and GC/MS results suggested that the metallic Ni-based catalyst had strong ability to transform alkenes into aromatic hydrocarbons. Ni/Fe bimetallic catalysts showed almost the same catalytic performance as the Ni metallic catalyst, which could reduce the cost of the catalyst. Thus, this study could deepen the understanding and provide a basic guideline of Ni/Fe bimetallic catalysts on the catalytic pyrolysis process of waste tires. Full article
(This article belongs to the Special Issue Catalytic Recycling of Waste)
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