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Selected Papers from the 3rd International Electronic Conference on Processes—Green...
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Selected Papers from the 3rd International Electronic Conference on Processes—Green and Sustainable Process Engineering and Process Systems Engineering (ECP 2024)

A special issue of Processes (ISSN 2227-9717).

Deadline for manuscript submissions: 31 March 2025 | Viewed by 2622

Special Issue Editor

Prof. Dr. Giancarlo Cravotto

E-Mail Website
Guest Editor
Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10125 Turin, Italy
Interests: green chemistry; process intensification; green extraction; enabling technologies (ultrasound, microwaves, hydrodynamic cavitation, ball milling, flow chemistry); sustainable chemical processes
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue comprises selected papers from the Proceedings of the 3rd International Electronic Conference on Processes—Green and Sustainable Process Engineering and Process Systems Engineering (ECP 2024), hosted online from 29 to 31 May 2024, an online platform for hosting scholarly e-conferences and discussion groups (https://sciforum.net/event/ecp2024?section=#welcome).

ECP 2024 will present the latest studies on process/system-related research in the fields of chemistry, biology, materials, energy, environment, food and engineering. The goal is to highlight the current status, challenges, opportunities and future trends in process systems engineering. The 2nd Electronic Conference Special Issue has published seven papers that can be found via the following link: https://www.mdpi.com/journal/processes/special_issues/ECP2023.

All processes/system-related scientists or researchers are welcome to join this venue and share their insights on the following general and related themes, including the following:

  • Green chemistry engineering and environment-related processes;
  • Experimental, theoretical, and computational research on process development and engineering;
  • Process modeling, simulation, optimization, and control;
  • Food-relevant processing and improvement of food quality;
  • Sustainable and renewable systems engineering;
  • Energy system and current demand and electricity market;
  • Supply chain management;
  • Circular economies;
  • Eco-friendly processes and methods.

Prof. Dr. Giancarlo Cravotto
Guest Editor

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. Processes 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 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.

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  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
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  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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Research

12 pages, 719 KiB  
Article
Techno-Economic Analysis of Mineralization and Utilization of CO2 in Recycled Concrete Aggregates
by Wayne Goh, Suming Ye, Roy Ou Yong, Kit Huan Tham, Cun Wang, Longgang Tao and Shuying Cheng
Processes 2025, 13(2), 410; https://doi.org/10.3390/pr13020410 - 4 Feb 2025
Viewed by 628
Abstract
Considering the dangers and risks posed by climate change, many countries and organizations have pledged to achieve “net-zero emissions” by 2050. The present work introduces a new approach that addresses the growing global carbon emissions issue by integrating CO2 capture and sequestration [...] Read more.
Considering the dangers and risks posed by climate change, many countries and organizations have pledged to achieve “net-zero emissions” by 2050. The present work introduces a new approach that addresses the growing global carbon emissions issue by integrating CO2 capture and sequestration through the carbonation of recycled concrete aggregates (RCAs), producing an alternative sand (AS) product. This study explores the capture of low-concentration CO2 and its suitability for sequestration into RCA. The integration of RCA in the process allows concrete manufacturers to reduce their reliance on mined sand, thereby minimizing its impact on the environment. A techno-economic analysis (TEA) was conducted on the CO2 absorption and mineralization process to assess its economic viability across various processing scales, from 150 kt CO2 per year to 1 Mt CO2 per year. Initial bench-scale experiments show that RCA samples have a carbonation capacity of 10% by mass—these experimental results were used to conduct a TEA using Aspen Plus and an Aspen Process Economic Analyzer (APEA). The TEA results reveal a cost of 11.02 USD/t AS at the smallest scale and 8.02 USD/t AS at the largest scale. Full article
(This article belongs to the Special Issue Selected Papers from the 3rd International Electronic Conference on Processes—Green and Sustainable Process Engineering and Process Systems Engineering (ECP 2024))
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19 pages, 3853 KiB  
Article
Sustainable Production of Porous Activated Carbon from Hydrothermally Carbonized Jamoya Fruit Seeds and Its Potential for Adsorbing the Azo Dye Carmoisine B
by Shubham Chaudhary, Monika Chaudhary, Vaishali Tyagi, Shivangi Chaubey, Suhas, Vikas Gupta, Isabel Pestana da Paixão Cansado and Jahangeer Ahmed
Processes 2025, 13(2), 385; https://doi.org/10.3390/pr13020385 - 31 Jan 2025
Viewed by 726
Abstract
Porous carbon materials can serve as effective and versatile adsorbents in water pollution management. This study presents a cost-effective and environmentally friendly method to produce porous carbon materials (JFS-PC) by exploiting Jamoya fruit seeds (JFS) as a precursor using a hydrothermal carbonization (HTC) [...] Read more.
Porous carbon materials can serve as effective and versatile adsorbents in water pollution management. This study presents a cost-effective and environmentally friendly method to produce porous carbon materials (JFS-PC) by exploiting Jamoya fruit seeds (JFS) as a precursor using a hydrothermal carbonization (HTC) process. HTC is a thermochemical process for the conversion of high moisture content biomass into carbon-rich materials. The process is performed in a temperature range of 180–250 °C during which the biomass is submerged in water and heated in a sealed environment under autogenous pressure. The adsorbents obtained were explored using different techniques viz. XRD, FTIR, FE-SEM, and surface area analyses to evaluate their characteristics that are beneficial for the adsorption process. Surface area analysis revealed that the developed activated carbon exhibits appreciable surface area (440.8 m2g−1), with a mean pore diameter of 3.97 nm. Activated carbon was successfully tested on the removal of an azo dye, Carmoisine B (CB), from water systems. Isothermal and kinetic evaluation demonstrated that the dye adsorption agrees well with the Langmuir (R2 = 0.993) and pseudo-second-order (R2 = 0.998) kinetics models. The experiments were designed to investigate the influence of adsorbate concentration (1 × 10−4 and 2 × 10−4 mol L−1), collision time (5–300 min), pH (2–12) of the solution, and temperature (25–45 °C) on the adsorption of the selected dye. The results revealed that pH influences the adsorption capacity of CB and showed maximum adsorption between pH 2 and 5. Experimentally, the CB isotherms showed maximum adsorption capacities of 169.0 mg g−1, at 45 °C. Mechanisms indicate that the surface charge of the adsorbent, and structures of the adsorbate play key roles in adsorption. Thermodynamic parameters revealed an endothermic and a physisorption process supported by Van’t Hoff calculations. The study indicates that the developed porous carbon (JFS-PC) can be successfully used for the removal of CB from water systems. It also highlights the use of an inexpensive and renewable precursor for the development of porous carbon materials. Full article
(This article belongs to the Special Issue Selected Papers from the 3rd International Electronic Conference on Processes—Green and Sustainable Process Engineering and Process Systems Engineering (ECP 2024))
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