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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Natural Bioactive Compounds: Methods for Extraction, Characterization and Application
edited by Mariela R. Michel and
submission deadline 31 Dec 2026 | 4 articles | Viewed by 4410 | Submission Open
Keywords: natural bioactive compounds; extraction methods; food applications; biotic products; functional foods; encapsulation technologies; analytical characterization; bioavailability and stability
(This special issue belongs to the Section Biological Processes and Systems)
Engineered Geothermal Systems (EGS): Advances in Exploration, Thermal Storage, and Energy Utilization
edited by
submission deadline 31 Dec 2026 | 4 articles | Viewed by 4083 | Submission Open
Keywords: engineered geothermal systems (EGS); subsurface energy storage; geothermal reservoir stimulation; geothermal energy modeling; rock mechanics; Reservoir Geomechanics; hot dry rock; heat extraction; heat utilization; energy transition; machine learning in geothermal systems; sustainable geothermal development; techno-economic analysis
(This special issue belongs to the Section Energy Systems)
Artificial Intelligence in Process Innovation and Optimization
edited by and Luiz Eduardo dos Santos Paes
submission deadline 31 Dec 2026 | 1 articles | Viewed by 3326 | Submission Open
Keywords: artificial intelligence; process optimization; machine learning; automation; decision-making systems; predictive analytics; digital twins; industrial processes; sustainability
(This special issue belongs to the Section Process Control, Modeling and Optimization)
Advances in Green Process Systems Engineering
edited by and
submission deadline 31 Dec 2026 | 2 articles | Viewed by 3318 | Submission Open
Keywords: green chemical engineering; renewable energy; smart manufacturing; process simulation and optimization; process intensification; multi-scale simulation; carbon capture and utilization; safety and environmental protection
(This special issue belongs to the Section Environmental and Green Processes)
Process Safety and Control Strategies for Urban Clean Energy Systems submission deadline 31 Dec 2026 | 5 articles | Viewed by 3184 | Submission Open
Keywords: urban clean energy safety; renewable energy risk assessment; battery storage hazards; hydrogen infrastructure safety; safety simulation frameworks; failure mode prediction
(This special issue belongs to the Section Energy Systems)
2nd Edition of Analysis and Optimization Control of Active Distribution Networks and Smart Grids submission deadline 31 Dec 2026 | 4 articles | Viewed by 3062 | Submission Open
Keywords: active distribution network; smart grid; renewables; analysis and control; uncertainty; forecasting
(This special issue belongs to the Section Energy Systems)
Process Design and Performance Analysis of Heat Pumps
edited by Tiago de Freitas Paulino, Luiz Machado and
submission deadline 31 Dec 2026 | 3 articles | Viewed by 2953 | Submission Open
Keywords: heat pump  ; design  ; performance analysis  ; renewable energy  ; thermal energy storage
(This special issue belongs to the Section Energy Systems)
Advances in Alternative Fuel Engines and Combustion Technology
edited by Pengbo Dong, Dongsheng Dong and Fuxing Wei
submission deadline 31 Dec 2026 | 4 articles | Viewed by 2479 | Submission Open
Keywords: alternative fuel; combustion; emission; engine
(This special issue belongs to the Section Chemical Processes and Systems)
Environmentally Friendly Production of Energy from Natural Gas Hydrates, 2nd Edition
edited by , and Yandong Yang
submission deadline 31 Dec 2026 | 5 articles | Viewed by 2279 | Submission Open
Keywords: natural gas hydrate; production strategy; additives; inhibitors; wellbore stability; sand production; reservoir damage; geothermal; economic and technical evaluation
(This special issue belongs to the Section Energy Systems)
Advances in Heterogeneous Catalytic Processes
edited by , Marco A. García-Eleno and
submission deadline 31 Dec 2026 | Viewed by 1819 | Submission Open
Keywords: heterogenous catalysis; nonmetallic catalysts; monometallic catalysts; biocatalysts
(This special issue belongs to the Section Catalysis Enhanced Processes)
Advanced Thermal Systems and Renewable Technologies for a Low-Carbon Future
edited by Wei Li, and Yujie Chen
submission deadline 31 Dec 2026 | 5 articles | Viewed by 1661 | Submission Open
Keywords: renewable energy resources; efficient heat transfer; thermal energy storage (TES); CFD; thermodynamic analysis; energy conversion efficiency
(This special issue belongs to the Section Petroleum and Low-Carbon Energy Process Engineering)
Discrete Element Method (DEM) and Its Engineering Applications
edited by Xiaoxing Liu
submission deadline 31 Dec 2026 | 2 articles | Viewed by 1475 | Submission Open
Keywords: discrete element method (DEM); granular materials; particle-scale mechanics; contact force models; particle morphology; DEM development; engineering processes; multiscale modeling; granular rheology; particle mixing; particle packing; particle transportation
(This special issue belongs to the Section Particle Processes)
Process Control and Intensification in Chemical Engineering
edited by
submission deadline 31 Dec 2026 | 2 articles | Viewed by 1395 | Submission Open
Keywords: process control; process intensification; industrial intelligence; optimal control
(This special issue belongs to the Section Process Control, Modeling and Optimization)
Sustainable Development of Coal Mining and Environment Impact Assessment
edited by , Zhenghe Liu and Pengfei Wu
submission deadline 31 Dec 2026 | 2 articles | Viewed by 1351 | Submission Open
Keywords: roof disaster; tunnel damage; water inrush from floor or roof; rock burst; energy storage related to coal mines; such as pumped storage; hydrogen storage; etc.; mining induced surface subsidence; ecological damage caused by mining; underground reservoir in coal seam goaf; efficient exploitation of coalbed methane; underground coal gasification; CO2 coal seam storage; other efficient; low-carbon; and sustainable ways to utilize coal
(This special issue belongs to the Section Sustainable Processes)
Engineering of Solid Oxide Fuel Cells: From Powder to Power
edited by Keqing Zheng and
submission deadline 31 Dec 2026 | 1 articles | Viewed by 1349 | Submission Open
Keywords: solid oxide fuel cell; powder synthesis; electrode manufacturing; stack assembly; system integration; modeling and simulation; industrial scale-up
(This special issue belongs to the Section Chemical Processes and Systems)
Carbon Capture, Utilization and Storage Technologies for Achieving Carbon Neutrality
edited by , Xiaoyu Zhang and
submission deadline 31 Dec 2026 | 1 articles | Viewed by 1302 | Submission Open
Keywords: Carbon Capture; Utilization and Storage (CCUS); carbon neutrality/net-zero emissions; CO2 mineralization and sequestration; integrated CO2 capture– conversion; CO2 conversion to fuels/chemicals; industrial flue gas treatment; negative emission technologies; chemical looping/calcium looping; Direct Air Capture (DAC); oxy-fuel combustion (O2/CO2)
(This special issue belongs to the Section Chemical Processes and Systems)
Advanced Combustion and Energy Conversion Technologies for Next-Generation Powertrains submission deadline 31 Dec 2026 | 1 articles | Viewed by 1227 | Submission Open
Keywords: advanced internal combustion engine techniques; hybrid electric vehicle; battery management and recharging systems; fuel cell electric vehicle; advanced energy conversion technology; advanced combustion technology; hydrogen energy
(This special issue belongs to the Section Energy Systems)
Risk Monitoring and Control Theory for Chemical Processes and Energy Systems
edited by , Yih-Wen Wang and
submission deadline 31 Dec 2026 | 1 articles | Viewed by 816 | Submission Open
Keywords: industry; safety; management; prevention; disasters; technology
(This special issue belongs to the Section Process Control, Modeling and Optimization)
Single Particle Dynamics in Granular Systems
edited by and
submission deadline 31 Dec 2026 | 1 articles | Viewed by 707 | Submission Open
Keywords: single-particle dynamics; granular materials; discrete element modelling; energy dissipation; collision processes; continuum descriptions; particle transport
(This special issue belongs to the Section Particle Processes)
Advances in Biomass Fuel: Production, Upgrading, and Applications
edited by Xiangping Li
submission deadline 31 Dec 2026 | 1 articles | Viewed by 510 | Submission Open
Keywords: bio-oils; renewable energy; pyrolysis; upgrading; sustainability; carbon neutrality
(This special issue belongs to the Section Energy Systems)
Emerging Technologies for Unconventional Reservoir Development and Geothermal Resource Utilization
edited by , , and Qiang Fu
submission deadline 31 Dec 2026 | 1 articles | Viewed by 406 | Submission Open
Keywords: unconventional energy; geothermal energy; reservoir characterization; artificial intelligence; multi-physics modeling; numerical simulation; production optimization; enhanced oil recovery; shale oil and gas; techno-economic analysis
(This special issue belongs to the Section Petroleum and Low-Carbon Energy Process Engineering)
Natural Gas/Hydrogen Liquefaction Processes and Refrigerating System
edited by Heng Sun
submission deadline 31 Dec 2026 | Viewed by 377 | Submission Open
Keywords: liquefaction process; specific energy consumption; natural gas; hydrogen; ortho-para hydrogen conversion; operation simulation; process optimization; control strategy
(This special issue belongs to the Section Energy Systems)
Additive Manufacturing Processes: Modeling, Monitoring, Anomaly Detection and Control
edited by and
submission deadline 31 Dec 2026 | 1 articles | Viewed by 340 | Submission Open
Keywords: additive manufacturing; process modeling; process monitoring; process control; anomaly detection; artificial intelligence
(This special issue belongs to the Section Manufacturing Processes and Systems)
Process Engineering and Theoretical Advances in Emission Reduction and Carbon Storage in Coal Mining
edited by Zhongbei Li, Xianfeng Liu and
submission deadline 31 Dec 2026 | Viewed by 326 | Submission Open
Keywords: emission mitigation; carbon storage; coal mining; CO2 mineralization; coal-gas interactions; process engineering optimization; life-cycle assessment
(This special issue belongs to the Section Energy Systems)
Design and Optimization of Chemical Sensors
edited by Ignacio Llamas-Garro and
submission deadline 31 Dec 2026 | Viewed by 316 | Submission Open
Keywords: chemical sensors; sensor optimization; electrochemical detection; nanomaterials; gas sensing; biosensors; signal processing; sensor design; sensitivity and selectivity; environmental monitoring; wearable sensors; sensor miniaturization; real-time sensing; analytical chemistry; data-driven sensor design
(This special issue belongs to the Section Chemical Processes and Systems)
Developing Tendency of New Materials in Electrochemistry and Electrochemical Engineering submission deadline 31 Dec 2026 | Viewed by 315 | Submission Open
Keywords: electrochemical applications; nanostructured materials; carbon-based materials; 2D materials; sustainable & eco-friendly materials; CO2 capture and conversion; biomimetic and bio-derived materials; green synthesis and organic liquids; structure– property– performance relationships; AI-assisted materials design; corrosion protection and durability; industry-oriented material innovation; innovative materials for electrochemical applications
(This special issue belongs to the Section Chemical Processes and Systems)
Advanced Hydrogen Energy Systems and Hybrid Energy Storage submission deadline 31 Dec 2026 | Viewed by 300 | Submission Open
Keywords: sustainable hydrogen; hydrogen production; application and strategy; storage; infrastructure; distribution; hybrid systems; environmental impact; drop-in fuel
(This special issue belongs to the Section Energy Systems)
Advanced Study and Application of Geothermal Energy and the Underground Thermal Energy Storage
edited by , Zhengzheng Cao, and Teng Teng
submission deadline 31 Dec 2026 | Viewed by 261 | Submission Open
Keywords: geothermal energy; underground thermal energy storage (UTES); enhanced geothermal systems (EGSs); aquifer thermal energy storage (ATES); borehole thermal energy storage (BTES); THMC coupling; renewable energy systems; building energy efficiency; decarbonization
(This special issue belongs to the Section Energy Systems)
Recent Advances in AI-Assisted Power Systems
edited by and Tian Li
submission deadline 31 Dec 2026 | Viewed by 255 | Submission Open
Keywords: artificial intelligence; power systems; machine learning; smart grid; energy forecasting; distributed energy resources
(This special issue belongs to the Section Energy Systems)
Machine Learning Applied to Food Processes submission deadline 31 Dec 2026 | Viewed by 246 | Submission Open
Keywords: machine learning; deep learning; predictive microbiology; food bioprocessing; artificial intelligence in food science; microbial modeling; data-driven modeling; process optimization; food safety and quality; real-time process monitoring
(This special issue belongs to the Section Food Process Engineering)
Surfactant Formulation, Interfacial Phenomena, Adsorption and Optimization for Chemical Enhanced Oil Recovery Applications
edited by Mohamed Khodja, Mohamed El Moundir Hadji and
submission deadline 31 Dec 2026 | Viewed by 203 | Submission Open
Keywords: surfactants; chemical enhanced oil recovery (cEOR); microemulsion; interfacial tension (IFT); wettability alteration; adsorption; reservoir rock; surfactant formulation; thermodynamics; design of experiments (DOE); artificial neural networks (ANN); genetic algorithms (GA); optimization; porous media; oil recovery
(This special issue belongs to the Section Petroleum and Low-Carbon Energy Process Engineering)
Technological Processes for Chemical and Related Industries, 2nd Edition
edited by
submission deadline 31 Dec 2026 | 1 articles | Viewed by 198 | Submission Open
Keywords: chemical industry; petrochemical operations; chemical synthesis; chemical technology; chemical engineering; circular economy; Industry 4.0; sustainability in chemical technologies; air; water; and soil treatment; pollution mitigation
(This special issue belongs to the Section Chemical Processes and Systems)
Zeolites and Porous Composites from Wastes: Synthesis, Characterization and Applications
edited by and José Arnaldo Santana Costa
submission deadline 31 Dec 2026 | Viewed by 162 | Submission Open
Keywords: zeolite; porous material; mesoporous silica materials; eco-friendly synthesis; mineral wastes; carbon-based wastes
(This special issue belongs to the Section Materials Processes)
Advances and Challenges in Green Extraction and Sustainable Processing of Natural Products
edited by Paola Galletti and
submission deadline 31 Dec 2026 | Viewed by 151 | Submission Open
Keywords: green extraction; sustainable processing; natural products; waste valorization; bioprocesses; green solvents; eco-friendly technologies
(This special issue belongs to the Section Separation Processes)
Flow Mechanisms and Enhanced Oil Recovery, 2nd Edition
edited by , Hailong Zhao and
submission deadline 31 Dec 2026 | Viewed by 141 | Submission Open
Keywords: oil and gas flow mechanisms; enhanced oil recovery (EOR); multiphase flow; reservoir simulation; water-alternating-gas (WAG); gas injection; chemical flooding; porous media
(This special issue belongs to the Section Energy Systems)
Advances in Smart Manufacturing Process and Real-Time Control
edited by , Miguel Martínez-García, , Lei Wang and
submission deadline 31 Dec 2026 | Viewed by 125 | Submission Open
Keywords: smart manufacturing; real-time control; process optimization; digital twin; cyber-physical systems; machine learning; Industry 4.0; Internet of Things; model predictive control; adaptive control
(This special issue belongs to the Section Manufacturing Processes and Systems)
Green Extraction Technologies and Functional Bioactive Compounds: From Environmental Sustainability to Food Applications submission deadline 31 Dec 2026 | Viewed by 87 | Submission Open
Keywords: green extraction; process intensification; sustainable technologies; techno-economic analysis; valorization; agro-industrial by-products; bio-based materials; bioactive compounds; biological activity; food applications
(This special issue belongs to the Section Food Process Engineering)
Developing Sustainable Chemical Processes for the Mineral Processing and Oil & Gas Industries submission deadline 31 Dec 2026 | Viewed by 81 | Submission Open
Keywords: chemical processes; mineral; rare earth elements; oil and gas; sustainablity; low carbon; enivironmental friendly; green processes
(This special issue belongs to the Section Petroleum and Low-Carbon Energy Process Engineering)
Process Intensification and Optimization in Microalgae Biomass Conversion and Biorefining submission deadline 31 Dec 2026 | Viewed by 38 | Submission Open
Keywords: process intensification; biorefinery; cascade valorization; deep eutectic solvents; pretreatment; extraction; hydrothermal liquefaction
(This special issue belongs to the Section Biological Processes and Systems)
Control and Optimization of Distributed Energy System and Microgrid
edited by and Abdelmadjid Recioui
submission deadline 31 Dec 2026 | Viewed by 32 | Submission Open
Keywords: microgrids; distributed energy systems (DES); distributed energy resources (DERs); energy management systems (EMS); optimization techniques; advanced control strategies; renewable energy integration; smart grids and intelligent energy systems; multi-microgrid coordination; artificial intelligence in energy systems
(This special issue belongs to the Section Energy Systems)
Design, Control, and Evaluation of Advanced Engineered Materials—2nd Edition
edited by and
submission deadline 5 Jan 2027 | 2 articles | Viewed by 1482 | Submission Open
Keywords: civil infrastructure materials; functionalized material; durability; green materials; energy-associated materials; material behavior computation
(This special issue belongs to the Section Materials Processes)
Stability and Processing Strategies for Organic and Hybrid Semiconductors
edited by Jesús Rodríguez-Romero
submission deadline 5 Jan 2027 | Viewed by 173 | Submission Open
Keywords: organic semiconductors; hybrid semiconductors; stability engineering; processing strategies; degradation mechanisms; interface engineering; defect passivation; in situ characterization; scalable fabrication; photovoltaics and optoelectronics
(This special issue belongs to the Section Materials Processes)
Biological and Biotechnological Applications of Natural Products: Development, Chemical Analysis, Structure Determination, Bioactivity
edited by
submission deadline 10 Jan 2027 | 1 articles | Viewed by 842 | Submission Open
Keywords: natural products; bioactivity; structural elucidation; biotechnological applications; biosynthesis
(This special issue belongs to the Section Biological Processes and Systems)
Lignin as a Sustainable Material: Present Advances and Future Perspectives submission deadline 10 Jan 2027 | Viewed by 235 | Submission Open
Keywords: lignin valorization; lignin functionalization; lignin fractionation; lignin depolymerization; interface engineering; compatibilization
(This special issue belongs to the Section Materials Processes)
Process Engineering for Shale Reservoir Characterization and Enhanced Recovery
edited by and Le Wang
submission deadline 10 Jan 2027 | Viewed by 213 | Submission Open
Keywords: characterization; simulation; modeling; pore networks; fluid flow; shale; organic; phase behavior
(This special issue belongs to the Section Energy Systems)
Data-Driven and Machine Learning Methods for Green Energy Materials
edited by Guannan Liu and
submission deadline 10 Jan 2027 | Viewed by 123 | Submission Open
Keywords: machine learning; materials informatics; active learning; high-throughput experiments; generative/inverse design; batteries and electrolytes; electrocatalysis and fuel cells
(This special issue belongs to the Section Materials Processes)
Heat Treatment and Microstructure Relationships in Advanced Steel Manufacturing Technologies submission deadline 10 Jan 2027 | Viewed by 97 | Submission Open
Keywords: heat treatment process; advanced steel manufacturing; microstructure– property relationships; phase transformations; thermo-mechanical processing; additive manufacturing of steels; advanced high-strength steels (ahss); high-entropy alloys; metal matrix composites; computational metallurgy
(This special issue belongs to the Section Manufacturing Processes and Systems)
Process Engineering in Electrified Roadway Systems: Design, Integration, and Sustainability submission deadline 15 Jan 2027 | 1 articles | Viewed by 1183 | Submission Open
Keywords: electrified pavement; wireless charging; material and structure design; performance evaluation; life cycle analysis
(This special issue belongs to the Section Process Control, Modeling and Optimization)
Sustainable Corrosion Control Strategies for Metals and Alloys in a Low-Carbon Era
edited by and Walney Silva Araújo
submission deadline 15 Jan 2027 | Viewed by 328 | Submission Open
Keywords: circular economy; corrosion-resistant alloys; eco-friendly corrosion inhibitors; green chemistry; low-carbon technologies; recycled materials; sustainable coatings
(This special issue belongs to the Section Materials Processes)
Sustainable Pavement Engineering with Plastics: From Waste to Performance Materials
edited by , Hilda de Pablo and
submission deadline 15 Jan 2027 | Viewed by 211 | Submission Open
Keywords: sustainable pavement engineering; recycled plastics; circular economy; waste valorization; polymer-modified asphalt; performance materials; life-cycle assessment; process optimization; environmental impact reduction; infrastructure sustainability
(This special issue belongs to the Section Materials Processes)
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