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Green Catalytic Processes in Chemical Engineering Towards Sustainable Processes and Circular Economy

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Sustainable Chemical Engineering and Technology".

Deadline for manuscript submissions: 31 August 2025 | Viewed by 1337

Special Issue Editors

Dr. Filipe Smith Buarque

E-Mail Website
Guest Editor
CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Aveiro, Portugal
Interests: green solvents; waste recovery; green catalysis; enzymatic catalysis, energy efficiency, sustainable chemical synthesis; sustainable process; circular economy; computational chemistry; bioactive compounds
Dr. Rafael Farrapeira

E-Mail Website
Guest Editor
Institute of Research and Technology (ITP), Tiradentes University, Maceió, Brazil
Interests: chemical engineering; energy transformation; advanced biofuels; biomass valorization; thermochemical conversions; catalytic upgrading; energy efficiency; renewable energy; chromatography analysis; bio-oil; sustainable processes

Special Issue Information

Dear Colleagues,

Catalytic processes in chemical engineering are integrated to enhance sustainable process design. In conformity with green chemistry principles, catalysis provides a way to upgrade the efficiency of reactions while decreasing waste and energy. This Special Issue will focus on recent advances in catalytic systems and their use to enable sustainable processes inside industrial scenarios. For example, one might prioritize the creation of new catalysts and innovative catalysis strategies to implement cutting-edge technologies at the industrial scale, or they might address challenges related to process intensification by adopting advanced computational methods such as computationally fluent process optimization directly into a broader range of applications, including renewable energy production and storage (e.g., fuel cells, electrolyzes), efficiency (heat recovery system manufacture) waste valorization,  carbon dioxide capture in mature industries like the cement industry, etc. This includes—but is not limited to—research on the connection between catalysis and a circular economy or contributions based on the lifecycle analysis of any aspect related to catalytic systems. In this issue, we aim to cover the scope of how catalysis can shape the chemical industry.

We invite our colleagues to submit their original contributions—be they research manuscripts, short communications, or reviews—to this Special Issue. We believe that a comprehensive collection of the latest knowledge in this field will foster new connections among researchers and inspire innovative ideas for the sustainable development of catalytic processes.

Dr. Filipe Smith Buarque
Dr. Rafael de Oliveira Farrapeira
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. Sustainability 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
  • green catalysis
  • sustainable processes
  • circular economy
  • renewable energy
  • production efficiency

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Published Papers (2 papers)

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Research

16 pages, 3068 KiB  
Article
Hydrothermally Treated Cement Bypass Dust as a Supplementary Cementitious Material
by Rimvydas Kaminskas, Brigita Savickaite and Anatolijus Eisinas
Sustainability 2025, 17(15), 6757; https://doi.org/10.3390/su17156757 - 24 Jul 2025
Viewed by 149
Abstract
In this study, the possibility of using cement bypass dust as a cement additive was investigated. The utilization of cement bypass dust remains a major problem in cement production, as huge amounts of it are stored in landfills. In this study, a hydrothermal [...] Read more.
In this study, the possibility of using cement bypass dust as a cement additive was investigated. The utilization of cement bypass dust remains a major problem in cement production, as huge amounts of it are stored in landfills. In this study, a hydrothermal treatment is proposed to modify the properties of this dust and to expand its use. Hydrothermal treatment with pure bypass dust and quartz was carried out to achieve a CaO/SiO2 ratio of 1 to 2. Samples were synthesized at 200 °C for 2, 4, 8, and 24 h. To examine the influence of the hydrothermal treatment on cement properties, a sample with a CaO/SiO2 ratio of 1, hydrothermally treated for 8 h, was selected. This study employed XRD, XRF, DSC-TG, and isothermal calorimetry. Most of the target synthesis products, e.g., tobermorite and calcium silicate hydrates, formed after 8 h of sample synthesis, during which quartz was added to bypass dust and a CaO/SiO2 ratio of 1 was achieved. An examination of the composition of the liquid medium following hydrothermal processing showed that almost all chlorine passed into the liquid medium, while some K2O remained in the solid synthesis product. The synthesized additive is an effective catalyst for the hydration of Portland cement. After a 28-day curing period, specimens incorporating modified bypass dust replacing up to 10% of the Portland cement by weight demonstrated compressive strengths comparable to, or surpassing, those of specimens composed exclusively of Portland cement. Full article
(This article belongs to the Special Issue Green Catalytic Processes in Chemical Engineering Towards Sustainable Processes and Circular Economy)
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13 pages, 2013 KiB  
Article
Exploring the Potential of Licuri (Syagrus coronata) Using Sustainable Techniques and Solvents for Extracting Bioactive Compounds
by Emília Silva Inocêncio, Filipe Smith Buarque, Luiz F. R. Ferreira, Cleide M. F. Soares, Álvaro S. Lima and Ranyere Lucena de Souza
Sustainability 2025, 17(4), 1507; https://doi.org/10.3390/su17041507 - 12 Feb 2025
Cited by 2 | Viewed by 894
Abstract
Bioactive compounds are important for promoting human health, either by developing functional products that offer complementary health benefits or by incorporating them into nutritional supplements, beverages, fortified foods, and pharmaceutical products. In this context, this work focuses on extracting phenolic compounds from the [...] Read more.
Bioactive compounds are important for promoting human health, either by developing functional products that offer complementary health benefits or by incorporating them into nutritional supplements, beverages, fortified foods, and pharmaceutical products. In this context, this work focuses on extracting phenolic compounds from the mesocarp of licuri (Syagrus coronata), with the aim of evaluating different emerging solvents and extraction techniques. Solvents with different polarities, such as acetonitrile, ethanol, dimethyl isosorbide (DMI), and CyreneTM, were used in the extraction process (by maceration, ultrasound, and microwaves). A response surface methodology (RSM) with 11 tests was applied, through which it was possible to determine the best extraction condition and method for extracting bioactive compounds, such as total phenolic content (TPC) and total flavonoid content (TFC). The results of licuri mesocarp characterization demonstrated the presence of functional groups associated with the presence of bioactive compounds. RSM analysis showed that the extraction process using acetonitrile at 30 wt%, 60 °C, and in a 1:20 (w/v) ratio had better TPC (35.8 mg GAE·g−1) and TFC (331.1 mg Erutin·g−1) values compared to ethanol. A comparative study between solvents was also conducted, in which CyreneTM (100 wt%) showed the better TPC extraction capacity (75.1 mg GAE·g−1) and acetonitrile as the best TFC extracting solvent (331.1 mg Erutin.g−1). Regarding the extraction method, when analyzing the optimized conditions found by RSM, ultrasound-assisted extraction showed the highest extraction values for TPC (42.8 mg GAE·g−1) and TFC (347.9 mg Erutin·g−1). Full article
(This article belongs to the Special Issue Green Catalytic Processes in Chemical Engineering Towards Sustainable Processes and Circular Economy)
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