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 Unconventional Reservoir Development and CO2 Storage
edited by Xiukun Wang, and Kerui Liu
submission deadline 30 Jan 2026 | 8 articles | Viewed by 8238 | 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 4263 | 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 4130 | 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 3341 | 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 3222 | 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)
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 2459 | 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)
Artificial Intelligence (AI) and Automation-Driven Innovations in Chemical Engineering
edited by
submission deadline 30 Jan 2026 | 1 articles | Viewed by 2423 | 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)
Biomass Treatment and Pyrolysis Processes
edited by and Milan Z. Momčilović
submission deadline 30 Jan 2026 | 2 articles | Viewed by 2038 | 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 1578 | 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 1326 | 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 761 | 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 171 | 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 157 | 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 119 | 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 74 | Submission Open
Keywords: photocatalysis; electrocatalysis; industrial processes; catalytic materials; reactor design
(This special issue belongs to the Section Catalysis Enhanced Processes)
Comprehensive Evaluation and Utilization of Coal Measure Mineral Resources
edited by , and Junqiang Kang
submission deadline 31 Jan 2026 | 16 articles | Viewed by 13158 | Submission Open
Keywords: coalbed methane; coal measure minerals; critical elements; resource evaluation
(This special issue belongs to the Section Chemical Processes and Systems)
Oil and Gas Well Engineering: Experimental and Numerical Investigation
edited by
submission deadline 31 Jan 2026 | 14 articles | Viewed by 12852 | Submission Open
Keywords: multiphase flow modeling; drilling technology; high-temperature high-pressure (HTHP) wells; well integrity and risk management; computational fluid dynamics (CFD); oil and gas production optimization; real-time monitoring and control; enhanced well performance; reservoir engineering simulations; wellbore stability
(This special issue belongs to the Section Energy Systems)
Processes Development for Wastewater Treatment
edited by
submission deadline 31 Jan 2026 | 5 articles | Viewed by 10790 | Submission Open
Keywords: wastewater management; treatment technologies; wastewater reuse; biosolids production; managed aquifer recharge
(This special issue belongs to the Section Chemical Processes and Systems)
Synthesis, Characterization and Computational Modeling of Nanostructured Materials
edited by Abdennaceur Karoui, Shizhong Yang and
submission deadline 31 Jan 2026 | 5 articles | Viewed by 10765 | Submission Open
Keywords: semiconductors; heterostructures; quantum dots; nanosensors; high-entropy materials; photocatalysts; nanocomposites; nanoparticles; ion implantation; high-performance computing; machine learning
(This special issue belongs to the Section Materials Processes)
Advanced Green Materials in Water and Wastewater Treatment submission deadline 31 Jan 2026 | 2 articles | Viewed by 10140 | Submission Open
Keywords: biomaterial; renewable raw materials; circular economy; green processes; green chemistry; waste recovery; biomass; wastewater treatment systems; emerging contaminants
(This special issue belongs to the Section Environmental and Green Processes)
Application of Artificial Intelligence in Industrial Process Modelling and Optimization (2nd Edition)
edited by , , Pan Yu and
submission deadline 31 Jan 2026 | 5 articles | Viewed by 9153 | Submission Open
Keywords: industrial process modeling; intelligent optimization; artificial intelligence; decision support systems; cyber– physical systems
(This special issue belongs to the Section AI-Enabled Process Engineering)
Multi-Criteria Decision Making in Chemical and Process Engineering
edited by , and Zhiyuan Wang
submission deadline 31 Jan 2026 | 3 articles | Viewed by 8670 | Submission Open
Keywords: multi-criteria decision making; multi-criteria analysis; process selection; process design; multi-objective optimization; chemical processes; sustainable chemical engineering; sensitivity analysis
(This special issue belongs to the Section Chemical Processes and Systems)
Micro/Nano Manufacturing Processes: Theories and Optimization Techniques (2nd Edition) submission deadline 31 Jan 2026 | 4 articles | Viewed by 6538 | Submission Open
Keywords: micro/nano manufacturing; theories; molecular dynamic; optimization methods; size effects; micro/nano additive manufacturing; non-conventional micro machining; nanomaterials; applications
(This special issue belongs to the Section Manufacturing Processes and Systems)
Design and Optimisation of Solar Energy Systems
edited by Manuel Jesús Rodríguez-Pérez, and Felipe Noh Pat
submission deadline 31 Jan 2026 | 2 articles | Viewed by 6153 | Submission Open
Keywords: photovoltaic technologies; solar thermal energy collectors; storage; and conversion; energy system modeling and optimization; renewable energy modeling and optimization; passive; active; and hybrid solar thermal systems; photoelectrochemical processes; sustainable energy solutions; solar energy harvesting; advanced solar materials; solar energy materials: synthesis and characterization; nanomaterials for photovoltaic applications; characterization and structure– property relations of new energy materials
(This special issue belongs to the Section Energy Systems)
Artificial Intelligence and Smart Systems in Process Engineering Applications
edited by Hasan Amca and Huseyin Ademgil
submission deadline 31 Jan 2026 | 5 articles | Viewed by 4957 | Submission Open
Keywords: artificial intelligence; smart technologies; machine learning; engineering applications; intelligent telecommunication systems; smart energy systems; signal processing and detection; data science and analytics; robotics and automation; cybersecurity
(This special issue belongs to the Section Process Control and Monitoring)
Multi-Phase Flow and Heat and Mass Transfer Engineering
edited by , Xiao Cheng and Mingfei Mu
submission deadline 31 Jan 2026 | 7 articles | Viewed by 4527 | Submission Open
Keywords: multiphase flow; phase change; heat transfer enhancement; droplets; microchannel; emerging thermo-fluid; thermal management
(This special issue belongs to the Section Energy Systems)
Adsorbent Materials for Water Treatment: Innovations in Pollutant Removal
edited by Maria Angélica Simões Dornellas Barros and
submission deadline 31 Jan 2026 | 2 articles | Viewed by 4076 | Submission Open
Keywords: adsorbent materials; water treatment; pollutant removal; nanotechnology; electrochemical methods; sorption technologies; hybrid treatment systems; green remediation; metal– organic frameworks (MOFs); magnetic materials; starch-based adsorbents; bioadsorption
(This special issue belongs to the Section Environmental and Green Processes)
Process Modeling, Simulation, and Optimization in Chemical Engineering submission deadline 31 Jan 2026 | 2 articles | Viewed by 4046 | Submission Open
Keywords: process modeling; process simulation; process optimization; chemical engineering; techno-economic analysis; environmental impact; integration of renewable energies; artificial intelligence in chemical processes; sustainable processes; advanced process control
(This special issue belongs to the Section Chemical Processes and Systems)
Microstructure Properties and Characterization of Metallic Material
edited by and Crispulo Enrique Deluque Toro
submission deadline 31 Jan 2026 | 4 articles | Viewed by 3097 | Submission Open
Keywords: microstructure evolution; alloy design; mechanical properties; phase transformations; heat treatment; surface engineering; microstructural characterization; advanced materials; modelling; simulation
(This special issue belongs to the Section Materials Processes)
Processing and Applications of Polymer Composite Materials
edited by Antônio Benjamim Mapossa
submission deadline 31 Jan 2026 | 3 articles | Viewed by 2212 | Submission Open
Keywords: polymer composites; processing techniques; additives; fibers; membranes; hybrid matrix; performance
(This special issue belongs to the Section Chemical Processes and Systems)
Advances in Bioprocess Technology, 2nd Edition submission deadline 31 Jan 2026 | 4 articles | Viewed by 2084 | Submission Open
Keywords: bioprocess engineering; fermentation; upstream processing; downstream processing; biomass valorization; bioreactors; bio-based products
(This special issue belongs to the Section Biological Processes and Systems)
2nd Edition of Applications of Computational Fluid Dynamics (CFD) in Chemical Process Simulations
edited by and
submission deadline 31 Jan 2026 | 4 articles | Viewed by 1688 | Submission Open
Keywords: fluid flow; multiphase; complex fluids; heat transfer; mass transfer; process intensification
(This special issue belongs to the Section Chemical Processes and Systems)
Design, Control, Modeling and Simulation of Energy Converters submission deadline 31 Jan 2026 | 1 articles | Viewed by 1394 | Submission Open
Keywords: converter energy; modeling; converter simulation; design; power generation; renewable energy; device modeling
(This special issue belongs to the Section Energy Systems)
Advanced Application of Photoelectrocatalysis for Energy Conversion
edited by Juan Manuel Mora-Hernández and Jesús Adrián Díaz-Real
submission deadline 31 Jan 2026 | 1 articles | Viewed by 1393 | Submission Open
Keywords: photoelectrochemistry; watersplitting; hydrogen generation; CO2 photoelectroreduction; photoelectrodes; semiconductors; photocatalysis
(This special issue belongs to the Section Energy Systems)
Technologies for Production, Processing, and Extraction of Natural Products, 3rd Edition
edited by
submission deadline 31 Jan 2026 | 2 articles | Viewed by 1337 | Submission Open
Keywords: natural product chemistry; biological sources; leftovers; production methods; processing; non-conventional extractions; methods of analysis
(This special issue belongs to the Section Biological Processes and Systems)
2nd Edition of Green Particle Technologies: Processes and Applications
edited by , and Wei Liu
submission deadline 31 Jan 2026 | 1 articles | Viewed by 1051 | Submission Open
Keywords: powder technology; green process; particle formation; particle modification; green material; green product; waste/harmful particles; characterization method
(This special issue belongs to the Section Particle Processes)
Advanced and Novel Physico-Chemical and Biological Wastewater Treatment Technologies submission deadline 31 Jan 2026 | 1 articles | Viewed by 892 | Submission Open
Keywords: wastewater treatment; activated sludge processes; aerobic/anaerobic biodegradation processes; biofilm processes; membrane bioreactors; emerging chemical treatment; combined biological processes
(This special issue belongs to the Section Environmental and Green Processes)
Study of Modeling and Simulation of Oil and Gas Reservoirs Engineering
edited by
submission deadline 31 Jan 2026 | 1 articles | Viewed by 855 | Submission Open
Keywords: large-scale experimental methods; multi-physical field coupling; micro– nano-pore dynamics; unconventional reservoir development; long-term dynamic
(This special issue belongs to the Section Energy Systems)
Hydraulic Fracturing Process, Simulation and Modeling in Petroleum Engineering
edited by Jingyu Xie and Zhennan Zhu
submission deadline 31 Jan 2026 | 1 articles | Viewed by 849 | Submission Open
Keywords: experimental and numerical simulation; initiation and propagation of hydraulic fracture; low-carbon energy; field operation; mechanical model
(This special issue belongs to the Section Energy Systems)
Sustainable Materials for Energy Industry: High-Temperature Polymer Nanocomposites
edited by Maryam Tabatabaei
submission deadline 31 Jan 2026 | 1 articles | Viewed by 773 | Submission Open
Keywords: high-temperature polymer nanocomposites; energy materials; functional nanofillers; sustainable polymers; extreme environment performance
(This special issue belongs to the Section Energy Systems)
Advancing Sustainable Chemical Processes Through the Design of Ionic Liquids submission deadline 31 Jan 2026 | Viewed by 732 | Submission Open
Keywords: ionic liquids; sustainability; chemical processes; green chemistry; innovation
(This special issue belongs to the Section Sustainable Processes)
Application of Adaptive Control, Fault Detection and Deep Learning in Electrical Engineering
edited by and
submission deadline 31 Jan 2026 | Viewed by 657 | Submission Open
Keywords: energy demands; adaptive control; fault detection; power industry; deep learning; artificial intelligence
(This special issue belongs to the Section Automation Control Systems)
Advances in Mixing Technology for Industry Processing: Design, Optimization, and Performance Analysis
edited by and Jianbin Luo
submission deadline 31 Jan 2026 | 1 articles | Viewed by 572 | Submission Open
Keywords: mixing technology; process optimization; Computational Fluid Dynamics (CFD); Response Surface Methodology (RSM); Design of Experiments (DoE); mixing models and simulations
(This special issue belongs to the Section Process Control and Monitoring)
Design of Next-Generation Batteries: Materials, Cell Performance and Production Processes
edited by
submission deadline 31 Jan 2026 | 1 articles | Viewed by 556 | Submission Open
Keywords: next-generation battery; battery materials; electrode innovation; cell performance; battery design; energy storage; computational modeling
(This special issue belongs to the Section Manufacturing Processes and Systems)
Process Engineering: Process Design, Control, and Optimization submission deadline 31 Jan 2026 | 1 articles | Viewed by 537 | Submission Open
Keywords: process design; process control; process optimization; modeling and simulation; process systems engineering; sustainable processes; chemical engineering; industrial processes; advanced control; artificial intelligence
(This special issue belongs to the Section Process Control and Monitoring)
Thermodynamics and Fluid Mechanics in Energy Systems
edited by , Junyu Tao and
submission deadline 31 Jan 2026 | 1 articles | Viewed by 537 | Submission Open
Keywords: thermodynamics; fluid mechanics; energy systems; biomass conversion; solid waste utilization
(This special issue belongs to the Section Energy Systems)
Advanced Technologies for Energy Storage submission deadline 31 Jan 2026 | 1 articles | Viewed by 468 | Submission Open
Keywords: energy storage; advanced batteries; power systems; ancillary services; smart grids; electric vehicles; power system resilience
(This special issue belongs to the Section Energy Systems)
Innovations and Advances in Green Electrochemical Technologies for a Sustainable Future submission deadline 31 Jan 2026 | Viewed by 460 | Submission Open
Keywords: green electrochemistry; sustainable energy storage; electrocatalysis; eco-friendly technologies; electrochemical processes; renewable energy conversion; environmental remediation; sustainable batteries; waste-to-energy systems; energy efficiency
(This special issue belongs to the Section Chemical Processes and Systems)
Renewable Energy Horizons: Biomass Waste Valorization submission deadline 31 Jan 2026 | Viewed by 452 | Submission Open
Keywords: biomass waste; valorization; renewable energy; biofuels; anaerobic digestion; pyrolysis; gasification; fermentation
(This special issue belongs to the Section Energy Systems)
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