Special Issues

Processes publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Carbon Capture, Utilization, and Storage (CCUS) in Unconventional Oil and Gas submission deadline 30 Nov 2025 | 5 articles | Viewed by 6550 | Submission Open
Keywords: CCUS; Oil and gas reservoirs; EOR; EGR; CO2  storage
(This special issue belongs to the Section Energy Systems)
Processes in 2025
edited by
submission deadline 30 Nov 2025 | 5 articles | Viewed by 6443 | Submission Open
Keywords: chemical processes and systems; environmental and green processes; energy systems; process control and monitoring; biological processes and systems; catalysis enhanced processes; separation processes; particle processes; food process engineering; materials processes; automation control systems; manufacturing processes and systems; sustainable processes; AI-enabled process engineering; pharmaceutical processes
Innovations in Manufacturing Processes and Systems for Sustainable Practices (2nd Edition)
edited by and Flávia Barbosa
submission deadline 30 Nov 2025 | 5 articles | Viewed by 3962 | Submission Open
Keywords: manufacturing processes; sustainable manufacturing; process optimization; automation; robotics; green manufac-turing; additive manufacturing (3D printing); energy-efficient processes; waste reduction; circular economy; chemical manufacturing; biological processes; material processing; pharmaceutical production; food engineering; Industry 4.0; digitalization; smart manufacturing systems; bio-based materials; green chemistry; advanced recycling methods
(This special issue belongs to the Section Manufacturing Processes and Systems)
Fault Diagnosis Technology in Machinery Manufacturing submission deadline 30 Nov 2025 | 4 articles | Viewed by 3794 | Submission Open
Keywords: fault detection and diagnosis technology for machine manufacturing; vibration analysis for machine manufacturing; advances diagnostics techniques for machine manufacturing; neural networks methods for machine manufacturing; fault diagnosis methods for smart manufacturing; IoT-based monitoring and diagnostics of manufacturing systems; remote control and detection and detection technology for intelligent manufacturing; machine learning methods for machine manufacturing; applied artificial intelligence for fault detection and diagnosis technology for machine manufacturing; operational mode analysis for fault diagnostics and diagnostic for machine manufacturing
(This special issue belongs to the Section Manufacturing Processes and Systems)
Hybrid Artificial Intelligence for Smart Process Control
edited by and Haruki Ueno
submission deadline 30 Nov 2025 | 7 articles | Viewed by 3561 | Submission Open
Keywords: Artificial Intelligence (AI); Machine Learning (ML); smart process control; industrial automation; data-driven process control; predictive analytics; deep learning; real-time data processing; control systems; Internet of Things (IoT)
(This special issue belongs to the Section Automation Control Systems)
Recent Advances in Efficient Contaminant Removal Technologies for Wastewater
edited by , Germán Giácoman-Vallejos and Adolfo Henríquez
submission deadline 30 Nov 2025 | 2 articles | Viewed by 3522 | Submission Open
Keywords: advanced oxidation processes; adsorption; sustainable solutions; nanomaterials; heavy metals; nutrients; pharmaceuticals; dyes; microplastics
(This special issue belongs to the Section Environmental and Green Processes)
Advances in Polymer Films and Coatings: Preparation, Characterization and Applications submission deadline 30 Nov 2025 | 2 articles | Viewed by 3469 | Submission Open
Keywords: polymer films; functional coatings; sustainable coatings; advanced characterization; smart coatings; bio-based polymers; drying and curing mechanisms; barrier properties; antimicrobial coatings; modeling and simulation of coatings
(This special issue belongs to the Section Materials Processes)
Improvement and Innovation in Engineering and Bioprocesses in Dairy Technology submission deadline 30 Nov 2025 | 2 articles | Viewed by 2792 | Submission Open
Keywords: dairy technology; dairy products; enzyme; biocatalysis; fermentation; sustainable technology; milk; whey; process biochemistry; membrane techniques
(This special issue belongs to the Section Food Process Engineering)
Advancements in Photovoltaic Technologies: Innovations for Enhanced Energy Conversion and Efficiency submission deadline 30 Nov 2025 | 3 articles | Viewed by 2695 | Submission Open
Keywords: photovoltaic energy conversion; high-efficiency solar cells; emerging PV materials; thin-film photovoltaics; smart grid integration with PV; PV system advancements; scalable solar technologies
(This special issue belongs to the Section Energy Systems)
Advances in Water Resource Pollution Mitigation Processes
edited by and Aldo Saavedra
submission deadline 30 Nov 2025 | 3 articles | Viewed by 2587 | Submission Open
Keywords: circular economy; wastewater treatment; modelling; simulation; sustainable process; NBS; innovation; water pollution; membrane processes; valorization; nanotechnology
(This special issue belongs to the Section Environmental and Green Processes)
Advances in Hydrodynamics, Pollution and Bioavailable Transfers
edited by Weijie Wang, , and
submission deadline 30 Nov 2025 | 4 articles | Viewed by 2463 | Submission Open
Keywords: ecosystem; remediation of environmental pollutants; vegetation; green infrastructure; river; lake; wastewater
(This special issue belongs to the Section Environmental and Green Processes)
Synthesis, Catalysis and Applications of Organic Chemistry
edited by Steve D. Pollington
submission deadline 30 Nov 2025 | 2 articles | Viewed by 2139 | Submission Open
Keywords: green reagents; sustainability; organic synthesis; catalysis; applications
(This special issue belongs to the Section Chemical Processes and Systems)
Sustainable Waste Material Recovery Technologies
edited by and Gangasalam Arthanareeswaran
submission deadline 30 Nov 2025 | 2 articles | Viewed by 2094 | Submission Open
Keywords: sustainability; waste; carbon footprint; GHG; carbon capture; recovery; biohythane
(This special issue belongs to the Section Materials Processes)
Research on New Energy Carriers in Vehicles: Safety and Green Transition
edited by and Daniel Fruhwirt
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1945 | Submission Open
Keywords: NEC; road tunnels; safety; energy transition; fuels
(This special issue belongs to the Section Energy Systems)
Research Advances in Modeling, Optimization, and Control of Distributed Energy Systems
edited by Yskandar M. Hamam and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1944 | Submission Open
Keywords: renewable energy; optimal planning; optimal operation and control; distributed energy management; mixed energy sources; energy storage management.
(This special issue belongs to the Section Energy Systems)
Biomass Pyrolysis Characterization and Energy Utilization submission deadline 30 Nov 2025 | 2 articles | Viewed by 1566 | Submission Open
Keywords: biomaterials; polymer science; clean energy production; pyrolysis mechanisms; low-carbon technologies; circular bio-economies; physical chemistry; algorithm development; kinetic modeling; machine learning applications
(This special issue belongs to the Section Energy Systems)
Metal Complexes: Design, Properties and Applications
edited by Lidia Zapała, Elżbieta Woźnicka and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 1321 | Submission Open
Keywords: metal complexes; design and synthesis; structural and spectroscopic properties; catalysis; biological and medicinal applications; green and sustainable chemistry; enzyme mimetics; drug development; bioinorganic chemistry; coordination chemistry; functional materials; environmental and toxicological studies; photocatalysis; molecular magnetism; supramolecular chemistry; electrochemical applications
(This special issue belongs to the Section Chemical Processes and Systems)
Hybrid Solar-Powered Heat Exchanger Systems: Innovations and Challenges submission deadline 30 Nov 2025 | Viewed by 1240 | Submission Open
Keywords: hybrid solar systems; heat exchangers; solar thermal energy; energy efficiency; renewable energy; phase change materials (PCMs); nanofluids; thermal performance; smart technologies; thermal storage solutions; industrial heating; residential heating
(This special issue belongs to the Section Energy Systems)
Preparation, Theoretical Modeling and Application of Inorganic Photoelectric Materials
edited by , Raúl Sánchez Zeferino, Rosendo Lopez Delgado and Alvaro Flores Pacheco
submission deadline 30 Nov 2025 | Viewed by 1200 | Submission Open
Keywords: inorganic semiconductors; photovoltaics; quantum dots and nanostructures; optoelectronic devices; solar cells; photodetectors; perovskite materials; thin-film technologies; light-emitting diodes (LEDs)
(This special issue belongs to the Section Materials Processes)
Biological and Pharmacological Activity of Natural Products submission deadline 30 Nov 2025 | Viewed by 1066 | Submission Open
Keywords: natural products; functional foods; green extraction; bioactive molecules; bioavailability; medicinal chemistry; combinatorial medicine; pharmacological activities; health disorders
(This special issue belongs to the Section Pharmaceutical Processes)
Innovative Materials and Technologies for Pollutants Removal and Green Energy Production and Storage
edited by Gabriela Soreanu, Igor Cretescu and
submission deadline 30 Nov 2025 | 1 articles | Viewed by 922 | Submission Open
Keywords: air treatment; soil remediation; wastewater treatment; green energy; bio/electrochemical processes; life support systems; chemical and environmental process engineering
(This special issue belongs to the Section Environmental and Green Processes)
Sustainable and Intelligent Wearable Technologies: Design, Processes, and Applications
edited by , and Qian Zhang
submission deadline 30 Nov 2025 | Viewed by 705 | Submission Open
Keywords: sustainable fibers; nanofibers; polymers; composites; smart textiles; wearable technology; green manufacturing; energy harvesting; flexible devices; functional fashion design
(This special issue belongs to the Section Materials Processes)
High-Efficiency and High-Selectivity Processes of CO2 Conversion
edited by Mohammad Danish Khan, Preetam Kumar Sharma and
submission deadline 30 Nov 2025 | Viewed by 489 | Submission Open
Keywords: CO2 conversion; catalytic processes; electrochemical reduction; photocatalysis and biological conversion; novel materials and reactor engineering; renewable energy integration; circular chemical economy
(This special issue belongs to the Section Sustainable Processes)
Synthesis, Characterization and Functional Properties of Green Nanocomposites submission deadline 30 Nov 2025 | Viewed by 475 | Submission Open
Keywords: synthesis; characterization; nanocomposites; biopolymers; sustainability; functionalization; performance; degradation; applications
(This special issue belongs to the Section Materials Processes)
The Advances in Food Processing and Functional Food
edited by Bernardo Romão, Verônica Cortez Ginani and
submission deadline 30 Nov 2025 | Viewed by 443 | Submission Open
Keywords: food science; food industry; food microbiology; antioxidants; probiotics; food labels; nutrients; bioavailability
(This special issue belongs to the Section Food Process Engineering)
Development of New Processes for the Recovery of Metals from Waste Streams
edited by and Fatemeh Pourhossein
submission deadline 30 Nov 2025 | Viewed by 372 | Submission Open
Keywords: metal recovery; waste stream processing; critical raw materials; electronic waste; E-waste; sustainable processes; circular economy; supply chain risks; rare metal recovery; pyrometallurgy; acid waste management
(This special issue belongs to the Section Environmental and Green Processes)
Chemical Composition and Antioxidant Properties in Unconventional Food Processes
edited by , and Diana Brito de Barros
submission deadline 30 Nov 2025 | Viewed by 370 | Submission Open
Keywords: unconventional foods; bioactive compounds; antioxidant properties; nutritional analysis; phytochemicals; free radical scavenging; health benefits; sustainable food systems; dietary diversity; food preservation; functional foods; nutritional supplements; food security; food waste treatments; circular economy; LCA
(This special issue belongs to the Section Food Process Engineering)
Modeling Sustainable Processes—Aiming Towards Decarbonization in the Era of Artificial Intelligence
edited by and Hasan Sildir
submission deadline 30 Nov 2025 | Viewed by 260 | Submission Open
Keywords: process dynamics; mathematical modeling; process integration and optimization; chemical and biological processes; artificial intelligence; big data; sustainability
(This special issue belongs to the Section Chemical Processes and Systems)
Molecular Dynamics, Numerical Simulation and Integrated Method to Study Materials Processing and Manufacturing
edited by and
submission deadline 30 Nov 2025 | Viewed by 203 | Submission Open
Keywords: molecular dynamics simulations; numerical modeling; multi-scale modeling; computational materials science; manufacturing process optimization; integrated simulation techniques; microstructure evolution; phase transformations; multi-physics coupling; nanomanufacturing technologies
(This special issue belongs to the Section Manufacturing Processes and Systems)
New Trends in Thermal Energy Storage and Its Applications
edited by , Emre Artun and
submission deadline 30 Nov 2025 | Viewed by 182 | Submission Open
Keywords: thermal energy storage; phase-change materials; nano-enhanced materials; renewable energy; energy efficiency; sustainable energy solutions; design and optimization; practical applications
(This special issue belongs to the Section Energy Systems)
Advances in Enhanced Oil Recovery Processes
edited by Adolfo P. Pires and Dongmei Wang
submission deadline 30 Nov 2025 | Viewed by 169 | Submission Open
Keywords: enhanced oil recovery; flow in porous media; reservoir simulation; carbon capture; chemical flooding; miscible flooding; thermal flooding
(This special issue belongs to the Section Chemical Processes and Systems)
Synthesis and Application of Photocatalysts
edited by and Mali Zhao
submission deadline 30 Nov 2025 | Viewed by 134 | Submission Open
Keywords: photocatalysis; synthesis methods; solar energy conversion; environmental remediation; water splitting; CO2 reduction; sustainable chemistry; nanomaterials; heterostructured catalysts; photocatalytic applications; green chemistry; energy harvesting; metal– organic frameworks (MOFs)
(This special issue belongs to the Section Catalysis Enhanced Processes)
(Chemo)biocatalytic Upgrading of Biobased Chemicals and Materials
edited by and Bo Fan
submission deadline 30 Nov 2025 | Viewed by 115 | Submission Open
Keywords: biocatalysis; chemobiological upgrading; biomass pretreatment; value-added chemicals; biofuels; biorefinery; process integration
(This special issue belongs to the Section Catalysis Enhanced Processes)
Deep Eutectic Liquids in Chemical Engineering Processes: Extraction, Catalysis, Energy, and More
edited by
submission deadline 30 Nov 2025 | Viewed by 110 | Submission Open
Keywords: deep eutectic liquids (DELs); sustainable alternative; extraction efficiency; catalytic systems; electrochemical processes; material engineering; energy storage; biomaterial synthesis; separation processes; chemical engineering applications
(This special issue belongs to the Section Chemical Processes and Systems)
Selected Papers from the Sustainable Energy and Process Technologies Conference submission deadline 5 Dec 2025 | Viewed by 236 | Submission Open
Keywords: energy storage; energy carriers; biobased chemistry; electrification of the process industry; process intensification
(This special issue belongs to the Section Sustainable Processes)
Enzyme Production Using Industrial and Agricultural By-Products submission deadline 10 Dec 2025 | 6 articles | Viewed by 10790 | Submission Open
Keywords: biorefinery; waste valorization; economic analysis; solid fermentation; submerged fermentation; fungal enzymes; cellulolytic enzymes; lipases; amylases
(This special issue belongs to the Section Biological Processes and Systems)
Progress on Biomass Processing and Conversion submission deadline 10 Dec 2025 | 5 articles | Viewed by 8832 | Submission Open
Keywords: biomass conversion; energy production; methane; hydrogen; ethanol; pretreatment
(This special issue belongs to the Section Biological Processes and Systems)
Application of Enzymes in Sustainable Biocatalysis
edited by Carminna Ottone, and
submission deadline 10 Dec 2025 | 3 articles | Viewed by 6186 | Submission Open
Keywords: biocatalysis; immobilisation strategies; biorefinery; bioactive compounds; food waste valorization; climate change; biotechnology; bioenergy
(This special issue belongs to the Section Biological Processes and Systems)
Machine Learning for Predictive Modeling and Optimization of Manufacturing Processes
edited by Atiq Ur Rehman and Fawad Ali
submission deadline 10 Dec 2025 | 3 articles | Viewed by 2001 | Submission Open
Keywords: machine learning; predictive modeling; manufacturing processes; process optimization; smart manufacturing; deep learning; reinforcement learning; predictive maintenance; process control; defect detection; feature engineering; explainable AI; data-driven manufacturing; Industry 4.0; digital twins; sustainable and smart manufacturing; heuristic optimization methods
(This special issue belongs to the Section Process Control and Monitoring)
Study on Biomass Conversion and Biorefinery
edited by Yushuai Sang and Hanzhang Gong
submission deadline 10 Dec 2025 | Viewed by 790 | Submission Open
Keywords: biomass conversion; biomass derivatives; biorefinery; gasification; pyrolysis; hydrothermal liquefaction; catalytic conversion; biomass fermentation
(This special issue belongs to the Section Biological Processes and Systems)
Fundamental Materials Simulation and Experimental Research for Solar Cells and Industrial Applications submission deadline 10 Dec 2025 | 1 articles | Viewed by 690 | Submission Open
Keywords: nanomaterials; DFT; photovoltaic; nanomaterials for energy; nanomaterial applications; electrochemical; passivation; thin films and semiconductors; inorganic chemistry; computational materials and applications
(This special issue belongs to the Section Materials Processes)
Green and Scalable Bioprocess Engineering: Enzymatic Systems, Process Intensification and Sustainable Applications submission deadline 10 Dec 2025 | Viewed by 513 | Submission Open
Keywords: enzymatic bioprocessing; biopharmaceutical processes; biocatalysis; downstream processing; scale-up; process intensification; green chemistry; bio-based products; circular bioeconomy; biomass valorization
(This special issue belongs to the Section Biological Processes and Systems)
Advanced Membrane Technology in Air Pollution Treatment
edited by Yutang Kang and
submission deadline 10 Dec 2025 | Viewed by 391 | Submission Open
Keywords: particulate matter; volatile organic compounds; membrane; electrospinning membrane; nanofibrous membrane; catalytic membrane; ceramic membrane; air filtration; air cleaning; air purification
(This special issue belongs to the Section Environmental and Green Processes)
Advances in Waste Valorization into High-Value Chemicals
edited by
submission deadline 10 Dec 2025 | Viewed by 335 | Submission Open
Keywords: waste valorization; resource recovery; circular economy; high-value chemicals; innovative process design; sustainable development; process optimization
(This special issue belongs to the Section Chemical Processes and Systems)
AI-Driven Automation for Industrial Transformation: Innovations in Smart Systems, Machine Learning and Sustainable Processes
edited by Mohieddine Jelali
submission deadline 10 Dec 2025 | Viewed by 191 | Submission Open
Keywords: smart sensors; data engineering; computer vision; machine learning; deep learning; cognitive computing; AI-driven modeling; monitoring; or control; industrial IoT; AI-based design or engineering for sustainability
(This special issue belongs to the Section Manufacturing Processes and Systems)
Sustainable Bio- and Energy Polymers and Materials: Synthesis and Environmental Applications
edited by
submission deadline 10 Dec 2025 | Viewed by 107 | Submission Open
Keywords: catalysts; polymerization; bio-based materials; sustainable polymers; biomass conversion; environmental applications
(This special issue belongs to the Section Materials Processes)
Activated Carbon: Contaminant Removal for Environmental Sustainability submission deadline 15 Dec 2025 | 7 articles | Viewed by 24300 | Submission Open
Keywords: activated carbon; pesticides; pharmaceutical products; metals; biomass; wastewater treatment; regeneration; circular economy
(This special issue belongs to the Section Sustainable Processes)
Bioreactor Design and Optimization Process submission deadline 15 Dec 2025 | 7 articles | Viewed by 14358 | Submission Open
Keywords: bioreactor design; process intensification; CFD; mass transfer; innovative bioreactors; productivity; process optimization; solid-state bioreactors
(This special issue belongs to the Section Biological Processes and Systems)
Food Biochemistry and Health: Recent Developments and Perspectives
edited by
submission deadline 15 Dec 2025 | 3 articles | Viewed by 11005 | Submission Open
Keywords: food biochemistry; food composition; nutrients; healthy diets functional foods; novel foods; food supplements
(This special issue belongs to the Section Food Process Engineering)
Metal Oxides and Their Composites for Photocatalytic Degradation
edited by Jaideep Malik, Surjeet Chahal and Parmod Kumar
submission deadline 15 Dec 2025 | 3 articles | Viewed by 5465 | Submission Open
Keywords: metal oxides; semiconductor photocatalsysis; composite materials; photocatalyst; wastewater treatment; dye degradation; hetrojunction; advanced oxidation processes (AOPs); environmental remediation; nanomaterials; solar catalysis
(This special issue belongs to the Section Chemical Processes and Systems)
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