Advances in Decarbonisation Technologies for Industrial Processes

A special issue of Eng (ISSN 2673-4117). This special issue belongs to the section "Chemical, Civil and Environmental Engineering".

Deadline for manuscript submissions: 31 March 2026 | Viewed by 621

Special Issue Editor


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Guest Editor
School of Mining and Metallurgical Engineering, National Technical University of Athens, Heroon Polytechneiou 9, Zografou, 15780 Athens, Greece
Interests: environmental engineering; industrial design; energy optimization of industrial processes; LCA analysis

Special Issue Information

Dear Colleagues,

As industries have to ensure their long-term sustainability and competitiveness in line with major global climate commitments for reaching climate neutrality, cutting-edge advancements in decarbonisation technologies need to be adapted. Fully decarbonizing such complicated and integrated industrial environments requires a multidimensional approach. This Special Issue will explore emerging technologies for reducing carbon emissions across industrial processes, highlighting innovative solutions such as carbon capture, utilization, and storage (CCUS), hydrogen-based fuel switching, the electrification of heat processes, and the integration of renewable energy sources. The thematic areas also covered include the following: the role of digitalization, including AI and IoT, in optimizing energy use and enabling the real-time monitoring of emissions; waste to energy; waste stream recycling; life cycle assessment of environmental costs and social impacts; safe and sustainable design methodologies; and research, demonstration activities, and others. By presenting a comprehensive overview of technological innovations, policy insights, and practical applications, this Special Issue serves as a valuable resource for stakeholders committed to driving the industrial sector toward a sustainable net-zero future.

Dr. Antonis Peppas
Guest Editor

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Keywords

  • alternative fuels
  • electrification
  • carbon capture, utilization, and storage
  • efficiency
  • recycling
  • environmental assessment
  • net-zero processes
  • digitalisation

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Published Papers (2 papers)

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Research

22 pages, 3903 KiB  
Article
Integrating Gasification into Conventional Wastewater Treatment Plants: Plant Performance Simulation
by Ruben González, Silvia González-Rojo and Xiomar Gómez
Eng 2025, 6(5), 100; https://doi.org/10.3390/eng6050100 - 15 May 2025
Viewed by 152
Abstract
The high amount of sludge produced from wastewater treatment plants (WWTPs) requires final disposal, forcing plant operators to search for alternatives without exerting an excessive energy demand on the global plant balance. Future revisions of the WWTP Directive will probably set additional constraints [...] Read more.
The high amount of sludge produced from wastewater treatment plants (WWTPs) requires final disposal, forcing plant operators to search for alternatives without exerting an excessive energy demand on the global plant balance. Future revisions of the WWTP Directive will probably set additional constraints regarding the land application of sludge. Therefore, thermal treatment may seem a logical solution based on the additional energy that can be extracted from the process. The purpose of the present manuscript is to assess the integration of anaerobic digestion of sewage sludge and subsequent gasification using SuperPro Designer V13. Mass and energy balances were carried out, and the net energy balance was estimated under different scenarios. The integration of the process showed an electricity power output of 726 kW (best scenario, equivalent to 4.84 W/inhab.) against 411 kW (2.7 W/inhab.) for the single digestion case. The thermal demand of the integrated approach can be fully covered by deviating a fraction of gaseous fuels for heat production in a burner. Transforming syngas into methane by biological conversion allows densifying the gas stream, but it reduces the total energy content. Full article
(This article belongs to the Special Issue Advances in Decarbonisation Technologies for Industrial Processes)
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21 pages, 2917 KiB  
Article
Biodiesel Stability Enhancement Through Catalytic Transfer Hydrogenation Using Glycerol as Hydrogen Donor
by Graecia Lugito, Andreas Yulius Pamungkas, Muhammad Naufaal Daffa Realdi, Alif Kembara Alam, Candra Egiyawati, Yano Surya Pradana, Tri Partono Adhi, Tatang Hernas Soerawidjaja, I Gusti Bagus Ngurah Makertihartha, Wan Hanna Melini Wan Mohtar, Irwan Kurnia and Antonius Indarto
Eng 2025, 6(5), 94; https://doi.org/10.3390/eng6050094 - 6 May 2025
Viewed by 336
Abstract
This research aimed to enhance biodiesel stability through catalytic transfer hydrogenation using a biomimetic bimetallic catalyst and glycerol as a hydrogen donor. The effects of catalyst species, intermediate solvent, glycerol feed, and glycerol form on biodiesel stability were investigated. In this study, the [...] Read more.
This research aimed to enhance biodiesel stability through catalytic transfer hydrogenation using a biomimetic bimetallic catalyst and glycerol as a hydrogen donor. The effects of catalyst species, intermediate solvent, glycerol feed, and glycerol form on biodiesel stability were investigated. In this study, the examined bimetallic catalysts were Zn-Cr-bicarbonate, Zn-Cr-formate, Zn-Cr-Ni, and Cu-Ni/SiO2. Based on the results, the most excellent catalyst was presented by Cu-Ni/SiO2 catalyst with DMF solvent and 10 wt% glycerol feed. This combination demonstrated a significant reduction in iodine (ΔIV = −4.9 g-I2/100 g) and peroxide values (ΔPV = −5.2 meq-O2/kg) accompanied by an elevation of oxidative stability (ΔOS = 4.3 h). Moreover, the reaction of catalytic transfer hydrogenation using these bimetallic catalysts followed the theoretical mechanism of the simultaneous dehydrogenation–hydrogenation process with two different metals. The promotion of bicarbonate and formate ions on the bimetallic catalyst provided hydrogen transfer assistance in the catalyst. Hence, the continuous improvement of biodiesel properties is expected to promote sustainable implementation of cleaner diesel fuel. Full article
(This article belongs to the Special Issue Advances in Decarbonisation Technologies for Industrial Processes)
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