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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Thermochemical Conversion of Biomass/Organic Solid Wastes for the Promotion of Carbon-Based Materials and High-Value Substance Recovery
edited by and
submission deadline 30 Nov 2026 | Viewed by 78 | Submission Open
Keywords: thermochemical conversion; biomass; organic solid wastes; carbon-based materials; biochar; pyrolysis; product valorization; hydrothermal carbonization; liquefaction
(This special issue belongs to the Section Environmental and Green Processes)
Light-Based Interventions in Food Processing: Recent Advances and Applications submission deadline 30 Nov 2026 | Viewed by 57 | Submission Open
Keywords: light-based interventions; food processing; non-thermal technologies; food safety; process optimization
(This special issue belongs to the Section Food Process Engineering)
Design, Inspection and Repair of Oil and Gas Pipelines
edited by Wei Liang
submission deadline 10 Dec 2026 | 6 articles | Viewed by 8825 | Submission Open
Keywords: inherent safety design; load conditions and stress analysis; metal loss inspection techniques; crack; corrosion; or leak detection; intelligent monitoring and prognostics; pipeline and facility integrity; deepwater pipeline design; inspection; or repair; riser replacement or repairs; pipeline valve repairs or change-outs; deepwater maintenance and repair
(This special issue belongs to the Section Energy Systems)
Development of Adsorbent Materials Through Waste Valorization submission deadline 10 Dec 2026 | Viewed by 200 | Submission Open
Keywords: waste materials; adsorption; biosorption; material modification; inorganic/organic pollutants; water treatment; adsorption mechanisms; circular economy; resource recovery; sustainable waste valorization
(This special issue belongs to the Section Chemical Processes and Systems)
Advances in (Photo)electrocatalysts for Energy Conversion and Storage
edited by , Jingwen Sun and
submission deadline 10 Dec 2026 | Viewed by 36 | Submission Open
Keywords: (photo)electrocatalysts; single-atom catalysts; non-precious-metal catalysts; fuel/solar cells; active site regulation; in situ characterization; energy conversion and storage
(This special issue belongs to the Section Energy Systems)
Advances in Enhancing Unconventional Oil/Gas Recovery, 3rd Edition
edited by , , Dong Feng and
submission deadline 15 Dec 2026 | 3 articles | Viewed by 6537 | Submission Open
Keywords: unconventional reservoir; EOR/EGR; fluid transport; simulation; experiment; CCUS
(This special issue belongs to the Section Energy Systems)
Hydraulic Fracturing Experiment, Simulation, and Optimization
edited by , and
submission deadline 15 Dec 2026 | 2 articles | Viewed by 1018 | Submission Open
Keywords: fracturing optimization; geology– engineering integration; optimization of construction parameters; fracturing design; reservoir reconstruction; production optimization; integrated geological modeling
(This special issue belongs to the Section Energy Systems)
Biorefining and Circular Economy: Innovative Processes for Waste Valorization submission deadline 15 Dec 2026 | 1 articles | Viewed by 813 | Submission Open
Keywords: biorefinery; circular economy; waste valorization; process integration; process intensification; agro-industrial residues; techno-economic analysis (TEA); life cycle assessment (LCA); hybrid biocatalysis– thermocatalysis; digital twins and process modeling
(This special issue belongs to the Section Energy Systems)
Advances in Bed Reactors, Multiphase Flow, and CFD Simulation submission deadline 15 Dec 2026 | Viewed by 12 | Submission Open
Keywords: bed reactors; computational fluid dynamics (CFD); multiphase flow; fluid– particle systems; adsorption; separation; reactor modeling; process simulation; numerical methods
(This special issue belongs to the Section Chemical Processes and Systems)
Advanced Technologies for Bioenergy Recovery from Organic Waste and Wastewater
edited by
submission deadline 20 Dec 2026 | 1 articles | Viewed by 788 | Submission Open
Keywords: bioenergy recovery; organic waste valorization; wastewater treatment; anaerobic digestion; photocatalysis; renewable energy; process optimization
(This special issue belongs to the Section Sustainable Processes)
Modeling and Advanced Control of Motor Drives and Power Systems submission deadline 20 Dec 2026 | Viewed by 325 | Submission Open
Keywords: DC/AC inverter; DC-DC converter; AC/DC rectifier; machine drive; microgrid; advanced control; hardware-in-the-loop; power electronics
(This special issue belongs to the Section Energy Systems)
Advances in Novel and Sustainable Processing Technologies for Bioactive Compounds in Foods submission deadline 20 Dec 2026 | Viewed by 45 | Submission Open
Keywords: bioactive compounds; processing technologies; sustainable processing; functional foods; ultrasound-assisted extraction; high-pressure processing; agro-industrial resources; process optimization; food systems
(This special issue belongs to the Section Food Process Engineering)
Advanced Control, Management, and Diagnostics in Modern Energy Storage and Smart Grids
edited by Baoze Wei, and
submission deadline 20 Dec 2026 | Viewed by 21 | Submission Open
Keywords: battery management systems (BMSs); diagnostics and prognostics; energy storage systems (ESSs); distributed energy storage; smart grid control; multi-agent and distributed control; applied industrial technologies
(This special issue belongs to the Section Energy Systems)
Joining and Integration of Ceramics with Dissimilar Materials for Advanced Components and Applications submission deadline 23 Dec 2026 | Viewed by 407 | Submission Open
Keywords: brazing; brittle phases; ceramic-metal joining; high-performance materials; hybrid joining techniques; interface design; joining of dissimilar materials; joining techniques; thermal expansion mismatch; thermal residual stress
(This special issue belongs to the Section Manufacturing Processes and Systems)
Circular Economy Waste Conversion in Green Sustainable Chemistry submission deadline 24 Dec 2026 | Viewed by 246 | Submission Open
Keywords: circular economy; waste conversion; green chemistry; sustainable chemistry; materials recovery
(This special issue belongs to the Section Environmental and Green Processes)
Recent Developments in Biomaterials and Biological Processes submission deadline 25 Dec 2026 | Viewed by 224 | Submission Open
Keywords: biomaterials; tissue regeneration; drug delivery; biofabrication; sustainable agriculture; agrowaste-derived biomaterials; cell– material interactions
(This special issue belongs to the Section Biological Processes and Systems)
Electrochemical Sensors for the Detection of Environmental Pollutants
edited by , Rayhane Zribi, and Claudia Espro
submission deadline 29 Dec 2026 | Viewed by 286 | Submission Open
Keywords: environmental monitoring; carbon nanomaterials; sensors; pollutant detection; functionalization; electrochemical sensing; heavy metals; volatile organic compounds
(This special issue belongs to the Section Chemical Processes and Systems)
Revolutionizing Smart Manufacturing: Cutting-Edge Technologies in the Industry's Future
edited by and
submission deadline 30 Dec 2026 | 4 articles | Viewed by 5513 | Submission Open
Keywords: advanced manufacturing; artificial intelligence; precision machining; intelligent assembly; knowledge engineering; digital twin; optimization design; advanced robot; intelligent equipment
(This special issue belongs to the Section Manufacturing Processes and Systems)
Stability and Optimal Control of Linear Systems
edited by and Carlos Eduardo Trabuco Dórea
submission deadline 30 Dec 2026 | 5 articles | Viewed by 5376 | Submission Open
Keywords: linear systems; stability; optimization; control; filtering
(This special issue belongs to the Section Process Control and Monitoring)
Innovative Computational Approaches for Complex Multiphase Flow in Energy, Environment and Manufacturing
edited by Adefarati Oloruntoba, and Hongliang Xiao
submission deadline 30 Dec 2026 | 1 articles | Viewed by 882 | Submission Open
Keywords: reactive flows; fluidized beds; bioenergy; carbon capture; mineral processing; advanced manufacturing; machine learning– CFD hybrid models; computational frameworks; LCA; CFD; process intensification; scale-up; validation with experiments
(This special issue belongs to the Section Particle Processes)
Advances in Decarbonization Processes in Industry
edited by Talieh Rajabloo
submission deadline 30 Dec 2026 | Viewed by 420 | Submission Open
Keywords: carbon capture and utilization in heavy industries; processes for CO2 conversion to high-added-value chemicals; disruptive CO2 conversion technologies; laboratory-; pilot-; and industry-scale CO2 conversion processes; waste heat recovery in CO2 mitigation; renewable carbon resources; processes for the conversion of biomaterial and waste streams to added-value chemicals
(This special issue belongs to the Section Energy Systems)
Modeling of Transport Processes in Porous Media and Particle Systems submission deadline 30 Dec 2026 | Viewed by 319 | Submission Open
Keywords: packed beds; mechanically agitated beds; fluidized beds; consolidated solid materials and (nano-)particle clusters; pore-scale modeling (CFD; lattice boltzmann); pore network models; CFD-DEM; scale transitions and continuum models; chemical; electrochemical and biological reactors; wetting; moisture migration; water management; drying of porous media and particles; production and formulation of porous materials; storage of heat and mass; pollutant sequestration
(This special issue belongs to the Section Particle Processes)
Applications of Artificial Intelligence Technologies in Energy, Manufacturing and Automatic Control Processes
edited by , and Junyu Guo
submission deadline 31 Dec 2026 | 31 articles | Viewed by 58821 | Submission Open
Keywords: artificial intelligence; deep learning; machine learning; energy; manufacturing; automatic control
(This special issue belongs to the Section AI-Enabled Process Engineering)
Analysis and Control of New Power System with Multiple Types of Flexible Resources
edited by and Jiayan Liu
submission deadline 31 Dec 2026 | 5 articles | Viewed by 12785 | Submission Open
Keywords: new power systems; power quality; distributed generation; energy storage; flexible resources
(This special issue belongs to the Section Energy Systems)
Advanced Processes in Mining Safety and Disaster Prevention: From Gas Extraction to Fire/Dust Control
edited by , Qing Ma, and Qiang Xu
submission deadline 31 Dec 2026 | 13 articles | Viewed by 8929 | Submission Open
Keywords: rock burst; coal; gas; coalbed methane; gas transport; crack propagation; discrete element method; fluid-solid coupling; dynamic disasters in mines
(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 Dec 2026 | 4 articles | Viewed by 6620 | 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)
Research on Water Pollution Control and Remediation Technology
edited by
submission deadline 31 Dec 2026 | 5 articles | Viewed by 6584 | Submission Open
Keywords: water pollution; remediation technology; new technologies in environmental; sciences; remediation; environmental waste
(This special issue belongs to the Section Environmental and Green Processes)
Artificial Intelligence (AI) and Automation-Driven Innovations in Chemical Engineering
edited by
submission deadline 31 Dec 2026 | 3 articles | Viewed by 4502 | 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)
Numerical Simulation and Application of Flow in Porous Media
edited by Chengyong Li, and
submission deadline 31 Dec 2026 | 5 articles | Viewed by 4365 | Submission Open
Keywords: porous media flow; numerical simulation; computational modeling; multiphase flow; pore-scale modeling; multiscale simulation; applications in petroleum engineering
(This special issue belongs to the Section Energy Systems)
Advances in Heavy Metal Contaminated Soil and Water Remediation
edited by
submission deadline 31 Dec 2026 | 2 articles | Viewed by 4289 | Submission Open
Keywords: heavy metals; soil remediation; water pollution; phytoremediation; biochar; nanomaterials; contaminant immobilization; microbial remediation; risk assessment; environmental sustainability
(This special issue belongs to the Section Environmental and Green Processes)
Natural Bioactive Compounds: Methods for Extraction, Characterization and Application
edited by Mariela R. Michel and
submission deadline 31 Dec 2026 | 3 articles | Viewed by 3367 | 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 | 3 articles | Viewed by 3191 | 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 3044 | 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 and Monitoring)
Process Safety and Control Strategies for Urban Clean Energy Systems submission deadline 31 Dec 2026 | 5 articles | Viewed by 2639 | 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)
Advances in Green Process Systems Engineering
edited by and
submission deadline 31 Dec 2026 | 2 articles | Viewed by 2523 | 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)
Environmentally Friendly Production of Energy from Natural Gas Hydrates, 2nd Edition
edited by , and Yandong Yang
submission deadline 31 Dec 2026 | 3 articles | Viewed by 1410 | 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)
Discrete Element Method (DEM) and Its Engineering Applications
edited by Xiaoxing Liu
submission deadline 31 Dec 2026 | 2 articles | Viewed by 1234 | 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)
Advances in Heterogeneous Catalytic Processes
edited by , Marco A. García-Eleno and
submission deadline 31 Dec 2026 | Viewed by 1213 | Submission Open
Keywords: heterogenous catalysis; nonmetallic catalysts; monometallic catalysts; biocatalysts
(This special issue belongs to the Section Catalysis Enhanced Processes)
Process Control and Intensification in Chemical Engineering
edited by
submission deadline 31 Dec 2026 | 2 articles | Viewed by 1172 | Submission Open
Keywords: process control; process intensification; industrial intelligence; optimal control
(This special issue belongs to the Section Process Control and Monitoring)
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 1171 | 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 1140 | 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)
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 709 | Submission Open
Keywords: industry; safety; management; prevention; disasters; technology
(This special issue belongs to the Section Process Control and Monitoring)
Single Particle Dynamics in Granular Systems
edited by and
submission deadline 31 Dec 2026 | 1 articles | Viewed by 597 | 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 369 | Submission Open
Keywords: bio-oils; renewable energy; pyrolysis; upgrading; sustainability; carbon neutrality
(This special issue belongs to the Section Energy Systems)
Natural Gas/Hydrogen Liquefaction Processes and Refrigerating System
edited by Heng Sun
submission deadline 31 Dec 2026 | Viewed by 334 | 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)
Design and Optimization of Chemical Sensors
edited by Ignacio Llamas-Garro and
submission deadline 31 Dec 2026 | Viewed by 262 | 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)
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 202 | 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)
Zeolites and Porous Composites from Wastes: Synthesis, Characterization and Applications
edited by and José Arnaldo Santana Costa
submission deadline 31 Dec 2026 | Viewed by 133 | 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)
Emerging Technologies for Unconventional Reservoir Development and Geothermal Resource Utilization
edited by , , and Qiang Fu
submission deadline 31 Dec 2026 | Viewed by 113 | 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)
Advances and Challenges in Green Extraction and Sustainable Processing of Natural Products
edited by Paola Galletti and
submission deadline 31 Dec 2026 | Viewed by 96 | 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)
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