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Development of Catalytic Systems for Green Chemistry

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Chemical and Molecular Sciences".

Deadline for manuscript submissions: 30 October 2026 | Viewed by 1655

Special Issue Editors


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Guest Editor
Faculty of Chemistry, Department of Inorganic and Organic Chemistry, Biochemistry and Catalysis, University of Bucharest, Bd. Regina Elisabeta Nr. 4-12, 030018 Bucharest, Romania
Interests: heterogeneous catalysis; nanocomposite materials; magnetic nanoparticles; zeolites; biomass valorization; biofuels; metal oxides; oxidation reactions; dehydration reactions; solid surface chemistry

E-Mail Website
Guest Editor
Department of Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, Regina Elisabeta Blvd., no. 4-12, 030016 Bucharest, Romania
Interests: heterogeneous catalysis; nanocomposite materials; biomass valorization

Special Issue Information

Dear Colleagues,

One of the primary goals of green chemistry is to design products and processes that minimize the use and generation of hazardous substances. Developing catalytic systems for green chemistry is crucial for sustainable chemical processes. Catalysis enhances reaction efficiency, reduces energy consumption, and lowers waste production. Therefore, research focuses on creating effective and non-toxic catalysts from abundant resources. Heterogeneous catalysts, which are easily separated and reused, offer economic and environmental benefits. Biocatalysts, such as enzymes, provide high specificity and operate under mild conditions, reducing energy use and the need for harsh chemicals. Nano-catalysts, with their large surface area and unique properties, improve reaction rates and selectivity.

Additionally, using renewable feedstocks like biomass and safer aqueous media is a key advancement. These efforts reduce the environmental impact of the chemical industry and support sustainable processes.

Dr. Magdi El Fergani
Dr. Natalia Candu
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 250 words) can be sent to the Editorial Office for assessment.

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. Applied Sciences is an international peer-reviewed open access semimonthly 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 2400 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

  • green chemistry
  • heterogeneous catalysis
  • nano-catalysts
  • metal oxides catalysis
  • biomass valorization
  • biomolecules

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Published Papers (1 paper)

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Research

21 pages, 3814 KB  
Article
Design and Performance of a Two-Stage Fluidized Bed Reactor for Catalytic Pyrolysis of Mixed Plastic Waste
by Piotr Trochimczyk and Krzysztof Krawczyk
Appl. Sci. 2026, 16(5), 2549; https://doi.org/10.3390/app16052549 - 6 Mar 2026
Viewed by 518
Abstract
With global plastic production creating immense environmental pressure and conventional recycling methods facing limitations, advanced chemical recycling techniques are crucial. This paper presents details of the design, construction, and operation of two fluidized reactors: a laboratory-scale (LS) reactor and a large-scale laboratory reactor [...] Read more.
With global plastic production creating immense environmental pressure and conventional recycling methods facing limitations, advanced chemical recycling techniques are crucial. This paper presents details of the design, construction, and operation of two fluidized reactors: a laboratory-scale (LS) reactor and a large-scale laboratory reactor (LSLR) for the catalytic pyrolysis of mixed plastic waste. A waste stream simulating municipal collection, consisting of polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), and polystyrene (PS), was processed using a custom Ni/γ-Al2O3 catalyst and an industrial G-0110 catalyst in a two-stage system. The large-scale reactor demonstrated high efficiency, achieving a 90% yield of valuable pyrolysis oil and waxes, a 2% yield of syngas, and an 8% yield of solid residue containing mainly carbon at operating temperatures between 400 and 453 °C. The resulting liquid and wax fractions contained a rich mixture of aliphatic and aromatic hydrocarbons (such as styrene, indene, benzoic acid, toluene, and cumene), confirming their potential as a feedstock for the chemical industry. These results establish that two-stage catalytic pyrolysis in a fluidized bed reactor is a highly effective and promising technology for upcycling mixed plastic waste into valuable resources. Full article
(This article belongs to the Special Issue Development of Catalytic Systems for Green Chemistry)
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