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Catalysts
Special Issues
Catalytic Pyrolysis for Environmental Applications
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Catalytic Pyrolysis for Environmental Applications

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

Deadline for manuscript submissions: closed (28 February 2022) | Viewed by 3338

Special Issue Editors

Dr. Young-Min Kim

E-Mail Website
Guest Editor
Department of Environmental Engineering, Daegu University, Gyeongsan 38453, Republic of Korea
Interests: analytical pyrolysis; energy conversion; waste treatment; microplastic analysis; catalytic conversion; biomass; waste plastics
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Jungho Jae

E-Mail Website
Guest Editor
School of Chemical and Biomolecular Engineering, Pusan National University, Busan 46241, Korea
Interests: heterogeneous catalysis for biomass conversion, catalysis pyrolysis, hydrodeoxygenation, supercritical liquefaction
Special Issues, Collections and Topics in MDPI journals
Dr. Jechan Lee

E-Mail Website
Guest Editor
Department of Environmental Engineering, Ajou University, Suwon, Korea
Interests: biorefinery; catalyst; waste-to-energy; green chemistry

Special Issue Information

Dear Colleagues,

Rapid industrialization and continual population growth cause many local and global issues related to energy shortage and environmental pollution. Great technological efforts have been made to address them in terms of a sustainable development. Among them, the pyrolysis process has been intensively studied since it can produce renewable and carbon-neutral fuels and feedstock alternative to the carbon footprint.

In pyrolysis, waste biomass and waste polymers (waste plastics, rubbers, etc.) should be the proper feedstock to produce carbon fuels and feedstock. However, the pyrolysis of wastes still suffers from energy inefficiency, low quality, and poor selectivity for the production of target chemicals. A catalytic pyrolysis is expected to address these problems. The use of natural and waste minerals (e.g., dolomite, red mud, spent FCC catalyst) can also improve the efficiency of the pyrolytic process while reducing the operation cost. More technoeconomic analysis also needs to be carried out.

The aim of this Special issue is to cover recent technical advances in catalytic pyrolysis for environmental applications. Various research subjects related to the catalytic pyrolysis of wastes and development of cost-effective catalysts will be considered in this Special Issue.

It is our pleasure to invite you to submit manuscripts to this Special Issue. Reviews, short communications, and full research papers related to the catalytic pyrolysis of wastes or the catalytic upgrading of pyrolysis oils are especially welcome.

Prof. Young-Min Kim
Prof. Jungho Jae
Prof. Jechan Lee
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
  • Catalytic upgrading
  • Catalytic co-pyrolysis
  • environmental application
  • waste plastics
  • waste biomass

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Published Papers (1 paper)

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Research

13 pages, 2249 KiB  
Article
Diels–Alder Cycloaddition of Biomass-Derived 2,5-Dimethylfuran and Ethylene over Sulfated and Phosphated Metal Oxides for Renewable p-Xylene
by Hanbyeol Kim and Jungho Jae
Catalysts 2021, 11(9), 1074; https://doi.org/10.3390/catal11091074 - 7 Sep 2021
Cited by 7 | Viewed by 2633
Abstract
In this work, sulfated and phosphated metal oxides were studied as catalysts for the Diels–Alder cycloaddition of biomass-derived 2,5-dimethylfuran (DMF) and ethylene to understand the effect of acid strength on the reaction. Four catalysts with varied acidity, namely sulfated SiO2, sulfated [...] Read more.
In this work, sulfated and phosphated metal oxides were studied as catalysts for the Diels–Alder cycloaddition of biomass-derived 2,5-dimethylfuran (DMF) and ethylene to understand the effect of acid strength on the reaction. Four catalysts with varied acidity, namely sulfated SiO2, sulfated TiO2, phosphated SiO2, and phosphated TiO2, were prepared via wet impregnation using sulfuric acid and phosphoric acid as precursors, and their structural and acid properties were examined using X-ray diffraction, Brunauer–Emmett–Teller analysis, Fourier transform infrared spectroscopy, solid state 31P magic angle spinning nuclear magnetic resonance spectroscopy, and temperature programmed desorption of ammonia. The results revealed that the acidity of the catalysts was largely influenced by the type of the acid functional group and the support as well as the calcination temperature. The conversion of DMF and the selectivity toward p-Xylene (PX) were generally correlated with the total acid site density and the acid–metal oxide interaction strength, which in turn affected the acid strength. Overall, phosphated SiO2 and TiO2 calcined at 773 K were identified as the most active and selective catalysts, exhibiting a high PX selectivity of over 70% and DMF conversion of 80% at 523 K after 6 h. The origin of the stability of the highly active phosphated catalysts was also investigated in detail. Full article
(This article belongs to the Special Issue Catalytic Pyrolysis for Environmental Applications)
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