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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Advances in Chemical Systems: Catalysis, Green Processes, and Environmental Monitoring submission deadline 15 Jan 2026 | 5 articles | Viewed by 6370 | Submission Open
Keywords: catalysis and catalytic materials; green chemistry and sustainable processes; environmental monitoring technologies; renewable resources and waste valorization; process modeling and optimization; life cycle assessment (LCA); pollution control and mitigation; interdisciplinary chemical engineering; sustainable development in industrial processes; clean energy integration
(This special issue belongs to the Section Chemical Processes and Systems)
Distributed Intelligent Energy Systems
edited by and
submission deadline 15 Jan 2026 | 4 articles | Viewed by 3727 | Submission Open
Keywords: distributed intelligent energy system; intelligent energy system; distributed generation system; optimal operation of distribution network; operation optimization and optimization planning of intelligent
(This special issue belongs to the Section Energy Systems)
Insights into Hydrogen Production Using Solar Energy
edited by
submission deadline 15 Jan 2026 | 1 articles | Viewed by 2459 | Submission Open
Keywords: solar-to-hydrogen conversion; photoelectrochemical water splitting; photocatalysis for hydrogen generation; thermochemical hydrogen production; renewable energy integration
(This special issue belongs to the Section Energy Systems)
Development and Simulation of Coalescing Technology in Efficient Separation Processes
edited by and Lei Xing
submission deadline 15 Jan 2026 | 2 articles | Viewed by 1835 | Submission Open
Keywords: coalescing; aerosol; oil– water separation; filter media; fiber; wettability; surface modification; structural optimization; simulation
(This special issue belongs to the Section Separation Processes)
Advances in Heat Transfer and Fluid Dynamics of Energy Systems
edited by Ali Allahyarzadeh-Bidgoli and Jurandir Itizo Yanagihara
submission deadline 15 Jan 2026 | 1 articles | Viewed by 1648 | Submission Open
Keywords: heat transfer; fluid dynamics; energy systems; CFD; multiphase flow; thermal management; process optimization; renewable energy; energy storage; digital twin
(This special issue belongs to the Section Energy Systems)
Development and Implementation of Digital Twins for Industrial Processes submission deadline 15 Jan 2026 | 2 articles | Viewed by 1577 | Submission Open
Keywords: digital twin; modeling; simulation; monitoring; control; optimization; machine learning; real-time; industrial process; industrial digitalization
(This special issue belongs to the Section Manufacturing Processes and Systems)
Metal Material, Coating and Electrochemistry Technology
edited by Xianze Meng, Xinran Li and Qinhao Zhang
submission deadline 15 Jan 2026 | 1 articles | Viewed by 1564 | Submission Open
Keywords: metals and alloys; surface treatment; gradient nanocrystallization; electrochemical testing technology; electric double layer; corrosion and protection; coating design and performance; electrochemical reaction; computer aided design; theoretical calculation
(This special issue belongs to the Section Materials Processes)
Clean Thermal Utilization of Solid Carbon-Based Fuels
edited by and Hao Wu
submission deadline 15 Jan 2026 | 1 articles | Viewed by 703 | Submission Open
Keywords: solid carbon-based fuels; composition; clean thermal utilization; products utilization; process; economic
(This special issue belongs to the Section Energy Systems)
Innovative Processes and Technologies for Energy Applications Towards Sustainability
edited by Jorge Ivan Silva Ortega
submission deadline 15 Jan 2026 | 1 articles | Viewed by 639 | Submission Open
Keywords: renewable energy systems; energy storage solutions; smart processes; waste-to-energy conversion; energy processes
(This special issue belongs to the Section Energy Systems)
Advances in the Production and Application of Environmentally Friendly Polymers
edited by and Milena Pantic
submission deadline 15 Jan 2026 | Viewed by 127 | Submission Open
Keywords: eco technolodgies; polymers; cosmetics; environmental protection
(This special issue belongs to the Section Materials Processes)
Finite Element Method and Computational Techniques for Industrial Processes
edited by , , Shusen Zhao and
submission deadline 19 Jan 2026 | 3 articles | Viewed by 2331 | Submission Open
Keywords: finite element simulation; computational techniques; digital design; industrial processes; intelligent manufacturing
(This special issue belongs to the Section AI-Enabled Process Engineering)
Micro–Nano Bubble Technology and Its Applications submission deadline 20 Jan 2026 | 2 articles | Viewed by 15256 | Submission Open
Keywords: micro– nano bubble; hydroxyl radical; advanced oxidation; biofilm; pollutant degradation; crop respiration
(This special issue belongs to the Section Environmental and Green Processes)
Application of Refrigeration and Heat Pump Technology
edited by Alireza Zendehboudi
submission deadline 20 Jan 2026 | 7 articles | Viewed by 10428 | Submission Open
Keywords: heat pump; refrigeration; air conditioning; environmentally friendly refrigerants; heat exchanger design; energy storage; waste heat recovery; integrated system design and application of renewable energy in HVAC& R
(This special issue belongs to the Section Energy Systems)
Advances in Waste Treatment, Bioremediation and Decarbonization Research
edited by Yong Wei Tiong
submission deadline 20 Jan 2026 | 3 articles | Viewed by 6968 | Submission Open
Keywords: waste treatment; decarbonization; anaerobic digestion; aerobic composting; bioprocess; microbial biotechnology; gas fermentation; bioaugmentation; environmental pollution control
(This special issue belongs to the Section Sustainable Processes)
Renewable Energy Grid Integration and Carbon Reduction Strategies in Modern Power Markets
edited by and
submission deadline 20 Jan 2026 | 4 articles | Viewed by 6682 | Submission Open
Keywords: power markets; carbon trading markets; carbon reduction technologies; FACTS devices; renewable energy grid integration stability; carbon emission control mechanisms; energy system transformation; low-carbon economy; optimal power flow and dispatch; low-carbon policies
(This special issue belongs to the Section Energy Systems)
Research of Bioactive Synthetic and Natural Products Chemistry
edited by , and Panagoula Pavlou
submission deadline 20 Jan 2026 | 3 articles | Viewed by 6219 | Submission Open
Keywords: synthetic chemistry of bioactive compounds; chemistry and Isolation of natural products; innovative bioactive formulations; quantification assays
(This special issue belongs to the Section Pharmaceutical Processes)
Advanced Biomass Analysis and Conversion Technology
edited by Shengyu Xie
submission deadline 20 Jan 2026 | 2 articles | Viewed by 3096 | Submission Open
Keywords: biomass; hydrothermal treatment; pyrolysis; gasification; process optimization; biofuels; chemical feedstocks; biochar
(This special issue belongs to the Section Chemical Processes and Systems)
Recent Advances in Fuel Cell Technology and Its Application Process
edited by , Zehua Pan and
submission deadline 20 Jan 2026 | 1 articles | Viewed by 1117 | Submission Open
Keywords: fuel cell technology; electrochemical energy conversion and storage; additive manufacturing; techno-economic analysis; process integration; solid oxide fuel cell (SOFC); polymer electrolyte membrane fuel cell (PEMFC); alkaline fuel cell (AFC); molten carbonate fuel cell (MCFC); phosphoric acid fuel cell (PAFC); microbial fuel cell (MFC)
(This special issue belongs to the Section Energy Systems)
Advances in Green Extraction and Separation Processes
edited by Iván Costa-Trigo and
submission deadline 20 Jan 2026 | 2 articles | Viewed by 677 | Submission Open
Keywords: deep eutectic solvents/ionic liquids; enzymatic conversion; bioactive compounds extraction; supercritical extraction; membranes; adsorption– desorption processes; waste streams valorization
(This special issue belongs to the Section Separation Processes)
Sustainable Bioprocesses for Valorization of Food Industry Waste: Microbial and Enzymatic Innovations and Reactor Design submission deadline 20 Jan 2026 | 1 articles | Viewed by 276 | Submission Open
Keywords: sustainable bioprocesses; bioprocess engineering; microbial and enzymatic processes; waste valorization strategies; valuable products; reactor design
(This special issue belongs to the Section Biological Processes and Systems)
Advances in Antimicrobial Biomaterial Processes
edited by , Carlos Eduardo Moura and Caio Sérgio Santos
submission deadline 20 Jan 2026 | Viewed by 210 | Submission Open
Keywords: antimicrobial nanomaterials; nanobiotics; antimicrobial surfaces; biomaterials with action against biofilms; antimicrobial polymers (natural or synthetic); metal-based antibacterial agents; catalytic metallodrugs; hydroxyapatite; plasma-surface modification method (PSMM); photoresponsive materials (photocatalysts; photosensitizers photothermal)
(This special issue belongs to the Section Biological Processes and Systems)
Nanofluid Innovations: Recent Advances in Synthesis, Properties and Multifunctional Applications submission deadline 20 Jan 2026 | Viewed by 107 | Submission Open
Keywords: nanofluids; thermal conductivity enhancement; dielectric properties; heat transfer applications; stability and dispersion; industrial applications; synthesis and characterization; simulation and modeling
(This special issue belongs to the Section Chemical Processes and Systems)
Application of Surface-Enhanced Raman Spectroscopy (SERS) in Chemical and Life Sciences
edited by Konstantinos I. Chatzipanagis and Dimitrios Palles
submission deadline 21 Jan 2026 | Viewed by 362 | Submission Open
Keywords: surface plasmons; metallic nanostructures; Raman signal enhancement; high detection sensitivity
(This special issue belongs to the Section Environmental and Green Processes)
Innovations in CO2 and Hydrogen Storage: Emerging Technologies and Applications submission deadline 23 Jan 2026 | Viewed by 444 | Submission Open
Keywords: carbon capture; hydrogen adsorption; clean energy; sustainable materials; solid sorbents
(This special issue belongs to the Section Environmental and Green Processes)
Separation Processes for Environmental Preservation
edited by Maria Angélica Simoes Dornellas De Barros and
submission deadline 25 Jan 2026 | 7 articles | Viewed by 18295 | Submission Open
Keywords: adsorbents; membranes; green technology; novel wastewater processes
(This special issue belongs to the Section Separation Processes)
Research Advances and Applications of Isotopic and Spectroscopic Analysis in Foods and Beverages submission deadline 25 Jan 2026 | 3 articles | Viewed by 4363 | Submission Open
Keywords: isotopic analysis; spectroscopic analysis; sensory evaluation; food processing; food engineering; food science and technology; food authenticity; food authentication; food safety; food quality
(This special issue belongs to the Section Food Process Engineering)
Research on Biomass Energy and Resource Utilization Technology
edited by and Fabio Emiro Sierra Vargas
submission deadline 25 Jan 2026 | 3 articles | Viewed by 4134 | Submission Open
Keywords: valorization technologies; processes simulation; pretreatment design; biorefinery; biomass valorization; energy processes; chemical analysis; software; design; process systems design
(This special issue belongs to the Section Environmental and Green Processes)
Design, Modeling, and Optimization of Adsorption Process for Pollutant Removal submission deadline 25 Jan 2026 | 1 articles | Viewed by 933 | Submission Open
Keywords: adsorption; materials adsorbent; bioadsorption process; new adsorbent
(This special issue belongs to the Section Environmental and Green Processes)
Application of Machine Learning Techniques to Improve Industrial Energy Efficiency
edited by and Horacio Rostro-Gonzalez
submission deadline 25 Jan 2026 | Viewed by 644 | Submission Open
Keywords: machine learning; industrial energy efficiency; process optimization; predictive maintenance; intelligent control systems; energy consumption forecasting; digital twins; industrial Internet of Things (IIoT); data-driven decision making; anomaly detection in industrial systems; edge computing
(This special issue belongs to the Section Energy Systems)
Advances in Metal Organic Frameworks (MOFs) for Fluorescence Sensing
edited by Rana Dalapati
submission deadline 25 Jan 2026 | Viewed by 305 | Submission Open
Keywords: metal organic frameworks (MOFs); fluorescence sensing; sensing mechanism; host– guest interactions; post-synthetic modification
(This special issue belongs to the Section Chemical Processes and Systems)
Advancements in Photocatalytic Nanostructures: Synthesis, Characterization and Applications submission deadline 26 Jan 2026 | Viewed by 199 | Submission Open
Keywords: photocatalysis; nanostructures; synthesis; characterization; applications; solar energy utilization; water treatment; air purification; CO2 reduction; materials science; environmental remediation; catalyst design; advanced materials
(This special issue belongs to the Section Catalysis Enhanced Processes)
Control of Environmental Conditions and Technological Advances in Probiotic Fermentation submission deadline 27 Jan 2026 | 1 articles | Viewed by 1507 | Submission Open
Keywords: probiotic fermentation; environmental conditions; process optimisation; bioreactors; encapsulation; omics approaches; stress adaptation; mathematical modelling
(This special issue belongs to the Section Biological Processes and Systems)
Physical and Chemical Removal of Recalcitrant Pollutants Using Novel Solids: Nanomaterials, Biochar, and Waste-Derived Biomaterials
edited by , and Rubi Romero
submission deadline 30 Jan 2026 | 9 articles | Viewed by 10688 | Submission Open
Keywords: new and innovative nanomaterials; novel biochar; physical removal; chemical removal; waste-derived biomaterials; circular economy; reduction in fossil-derived plastics; reduction in waste-derived biomaterials; simulation and modeling; techno-economic analysis
(This special issue belongs to the Section Environmental and Green Processes)
The Science and Technology of Energy, Materials, and Environment: Convert Waste into Resources
edited by , Yixin Zhang and Shiling Yuan
submission deadline 30 Jan 2026 | 5 articles | Viewed by 8962 | Submission Open
Keywords: resource recycling; waste treatment; waste management; advanced material; valuable metal extraction; catalyst; molecular simulation; sustainable energy production
(This special issue belongs to the Section Energy Systems)
Advances in Unconventional Reservoir Development and CO2 Storage
edited by Xiukun Wang, and Kerui Liu
submission deadline 30 Jan 2026 | 9 articles | Viewed by 8482 | Submission Open
Keywords: unconventional reservoir; CO2 storage; hydraulic fracturing; enhanced oil recovery; CO2 -EOR; fluid– rock interaction; multiphase flow mechanism
(This special issue belongs to the Section Energy Systems)
Artificial Intelligence for Sustainable Energy Systems: Smart Grids, Homeostatic Control, and Distributed Resource Optimization submission deadline 30 Jan 2026 | 2 articles | Viewed by 4374 | Submission Open
Keywords: smart grid; microgrid on-grid; small means of distributed generation (PMGD); electrical energy distribution; distributed energy resources (DER); service quality standards; energy homeostasis; sustainable energy systems (SES)
(This special issue belongs to the Section Energy Systems)
Advances in Reservoir Development and Enhanced Oil Recovery Techniques
edited by and Jian Tao
submission deadline 30 Jan 2026 | 4 articles | Viewed by 4238 | Submission Open
Keywords: Enhanced Oil Recovery  (EOR); reservoir characterization; geomechanics in reservoir development; hydrocarbon extraction; unconventional reservoirs; sustainability in oil recovery; reservoir modeling and simulation; data-driven reservoir management
(This special issue belongs to the Section Chemical Processes and Systems)
Advances in Evaluation, Development, Simulation and Utilization of Geo-Energy Resources and Underground Space
edited by Zhixue Sun
submission deadline 30 Jan 2026 | 8 articles | Viewed by 3747 | Submission Open
Keywords: geo-energy resources; quantitative evaluation; efficient development; underground space utilization; underground gas storage (UGS); seepage flow simulation
(This special issue belongs to the Section Energy Systems)
Advances in Nanomaterials: Synthesis, Characterization and Applications
edited by
submission deadline 30 Jan 2026 | 2 articles | Viewed by 3279 | Submission Open
Keywords: nanomaterials; two-dimensional materials; self-assembly; sensing; cloud seeding; nanotoxicology and safety; energy conversion; water purification; air filtration; drug delivery
(This special issue belongs to the Section Materials Processes)
Artificial Intelligence (AI) and Automation-Driven Innovations in Chemical Engineering
edited by
submission deadline 30 Jan 2026 | 1 articles | Viewed by 2542 | Submission Open
Keywords: artificial intelligence (AI); automation; process optimization; sustainable systems; carbon capture and utilization (CCU); waste processing
(This special issue belongs to the Section AI-Enabled Process Engineering)
Advances in Photocatalytic Water and Wastewater Treatment Processes
edited by , Mohamed Gar Alalm and Antonio Carlos Silva Costa Teixeira
submission deadline 30 Jan 2026 | 2 articles | Viewed by 2520 | Submission Open
Keywords: photocatalysis; water treatment; wastewater treatment; advanced oxidation processes; environmental remediation; photocatalytic degradation; photocatalytic reactors; life cycle assessment of wastewater treatment processes; solar-driven water treatment
(This special issue belongs to the Section Catalysis Enhanced Processes)
Biomass Treatment and Pyrolysis Processes
edited by and Milan Z. Momčilović
submission deadline 30 Jan 2026 | 2 articles | Viewed by 2078 | Submission Open
Keywords: biochar; biomass; pyrolysis; porous carbon; hydrothermal process; environmental and green processes
(This special issue belongs to the Section Environmental and Green Processes)
Heat Transfer and Computational Fluid Dynamics in Thermofluids/Microfluidics submission deadline 30 Jan 2026 | 1 articles | Viewed by 1599 | Submission Open
Keywords: applied computational fluid dynamics; microfluidics; fluid mechanics; heat transfer; thermofluids; nanofluids; numerical simulation; compressible flows; energy storage; multiphase flow
(This special issue belongs to the Section Energy Systems)
Applications of Microorganisms in Wastewater Treatment Processes
edited by Yunmeng Pang, Yanan Yin and Zhenguo Chen
submission deadline 30 Jan 2026 | 1 articles | Viewed by 1341 | Submission Open
Keywords: industrial-wastewater biological treatment; nutrient (N and P) removal; heavy-metal removal; emerging-contaminant biodegradation; bioflocculants; microbial immobilization; microbial fuel cells; wastewater biorecovery
(This special issue belongs to the Section Environmental and Green Processes)
Optimizing Metal Extraction Processes: Recent Advances in Leaching Technology
edited by
submission deadline 30 Jan 2026 | 1 articles | Viewed by 794 | Submission Open
Keywords: leaching; metals; extraction; metallurgy; novel processes; sustainable processes
(This special issue belongs to the Section Separation Processes)
Recent Advances in the Effects of Thermal Processes on Alloy Microstructure and Mechanical Properties
edited by Milica Vasić and Qingmin Yu
submission deadline 30 Jan 2026 | Viewed by 201 | Submission Open
Keywords: alloys; heat treatment; thermal stability; microstructure; phase transformations; precipitation strengthening; mechanical properties
(This special issue belongs to the Section Materials Processes)
Hydrogen–Carbon Storage Technology and Optimization
edited by and Arshad Raza
submission deadline 30 Jan 2026 | Viewed by 172 | Submission Open
Keywords: hydrogen storage; carbon storage; energy transition; decarbonization; rock– fluid interactions for  H2 and  CO2; injectivity and withdrawal; sustainability; power-to-gas-to-storage
(This special issue belongs to the Section Energy Systems)
Machine-Learning-Assisted Intelligent Processing and Optimization of Complex Systems, 2nd Edition
edited by and Manman Yuan
submission deadline 30 Jan 2026 | Viewed by 161 | Submission Open
Keywords: intelligent processing; machine learning; optimization; complex system; control
(This special issue belongs to the Section AI-Enabled Process Engineering)
Progress on Solid Fuel Combustion, Pyrolysis and Gasification
edited by Xinyu Wang and Yang Liu
submission deadline 30 Jan 2026 | Viewed by 120 | Submission Open
Keywords: coal; biomass; organic solid waste; pyrolysis and gasification; combustion; radiation spectrum; single-particle char combustion; ash melting
(This special issue belongs to the Section Chemical Processes and Systems)
Recent Advances in Industrial Applications of Photo/Electrocatalysis
edited by Mohamed A. Abdellah
submission deadline 30 Jan 2026 | Viewed by 76 | Submission Open
Keywords: photocatalysis; electrocatalysis; industrial processes; catalytic materials; reactor design
(This special issue belongs to the Section Catalysis Enhanced Processes)
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