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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Biomass Energy Conversion for Efficient and Sustainable Utilization submission deadline 28 Feb 2026 | 4 articles | Viewed by 6625 | Submission Open
Keywords: bioenergy; biomass transformation technologies; biomass pretreatment; waste revaluation; advanced biofuels; hybrid biofuels.
(This special issue belongs to the Section Energy Systems)
Trends in Biochemical Processing Techniques
edited by Alberto Ordaz, Juan Silvestre Aranda-Barradas and Claudia Guerrero–Barajas
submission deadline 28 Feb 2026 | 2 articles | Viewed by 5905 | Submission Open
Keywords: biochemical processing; fermentation technologies; biocatalysis; biomolecule purification; biotechnological systems; process optimization; interdisciplinary approaches; modeling and simulation; process efficiency; sustainability in bioprocessing
(This special issue belongs to the Section Chemical Processes and Systems)
Innovative Techniques for the Control of Linear and Nonlinear Systems and Processes submission deadline 28 Feb 2026 | 3 articles | Viewed by 4351 | Submission Open
Keywords: linear and nonlinear control; robotics; manufacturing processes; fault-tolerant control; extended state observers; underactuated systems; discrete-event systems; sustainability; process control
(This special issue belongs to the Section AI-Enabled Process Engineering)
Advanced Separation and Extraction Processes for Effective Resource Utilization
edited by Ahmed Sobhy
submission deadline 28 Feb 2026 | 5 articles | Viewed by 4076 | Submission Open
Keywords: separation processes; resource recovery; extraction technologies; sustainable engineering; process intensification; hydrometallurgy; waste valorization; circular economy; critical minerals
(This special issue belongs to the Section Chemical Processes and Systems)
High-Value-Added Utilization of Food and Food By-Products submission deadline 28 Feb 2026 | 2 articles | Viewed by 3793 | Submission Open
Keywords: nutraceutical compounds; vegetable and fruit by-products; circular bioeconomy; eco-efficiency; food wastage; novel methodologies; food safety; sustainability; traceability; waste fermentation; product valorize
(This special issue belongs to the Section Food Process Engineering)
Applications of Multifunctional Materials and Novel Engineering Techniques
edited by Jih-Hsin Liu, Chia-Hao Chen and
submission deadline 28 Feb 2026 | 1 articles | Viewed by 2090 | Submission Open
Keywords: multifunctional materials; advanced manufacturing; hybrid systems; computational modeling; energy applications; nanotechnology; biomedical engineering; environmental applications; process optimization; novel fabrication techniques
(This special issue belongs to the Section Manufacturing Processes and Systems)
Safety Monitoring and Intelligent Diagnosis of Mining Processes
edited by Biao Xie and
submission deadline 28 Feb 2026 | 5 articles | Viewed by 2065 | Submission Open
Keywords: mine fire detection; mine water inrush warning; gas disaster monitoring and prevention; mine dust control; strata pressure behavior analysis; mine intelligent ventilation; microseismic monitoring technology; real-time risk assessment; disaster evolution simulation; intelligent fault diagnosis
(This special issue belongs to the Section AI-Enabled Process Engineering)
Innovative Robotic Process Control in Agriculture: Enhancing Efficiency and Sustainability
edited by Jingyao Gai and Jiqing Chen
submission deadline 28 Feb 2026 | 2 articles | Viewed by 1997 | Submission Open
Keywords: agricultural robotics; agricultural automation; autonomous equipment; precision agriculture; human– robot collaboration; field robotics; smart farming; sustainable farming technologies
(This special issue belongs to the Section Automation Control Systems)
Engineered Geothermal Systems (EGS): Advances in Exploration, Thermal Storage, and Energy Utilization
edited by
submission deadline 28 Feb 2026 | 3 articles | Viewed by 1557 | 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)
Machine Learning Models for Sustainable Composite Materials submission deadline 28 Feb 2026 | 2 articles | Viewed by 1133 | Submission Open
Keywords: data-driven modeling; composite materials and structures; machine learning; reinforced concrete; optimization; composites in armor design; thin-walled structures; lightweight structures; artificial intelligence; sustainability
(This special issue belongs to the Section Sustainable Processes)
Environmental Fate, Ecological Impact and Treatment of Emerging Organic Pollutants (EOPs) submission deadline 28 Feb 2026 | Viewed by 642 | Submission Open
Keywords: emerging organic pollutants (EOPs); pharmaceuticals and personal care products (PPCPs); transformation products; disinfection by-products; wastewater treatment; chlorination; advanced oxidation processes; micropollutants; toxicity; environmental protection; sorption on microplastics; endocrine disruptors
(This special issue belongs to the Section Environmental and Green Processes)
Process Safety and Control Strategies for Urban Clean Energy Systems submission deadline 28 Feb 2026 | 1 articles | Viewed by 447 | 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)
Research on Seawater Desalination and Water Treatment Using Membrane Materials
edited by , and
submission deadline 28 Feb 2026 | Viewed by 419 | Submission Open
Keywords: water treatment; seawater desalination; membrane materials; anti-fouling; renewable energy-driven systems
(This special issue belongs to the Section Environmental and Green Processes)
Recent Advances in Thermodynamic Modeling of Ionic Liquids for Energy Applications
edited by Luis A. Follegatti-Romero and Murilo Leite Alcantara
submission deadline 28 Feb 2026 | Viewed by 382 | Submission Open
Keywords: thermodynamic modeling; phase equilibria; electrostatic interaction; intelligent design and simulation; properties of ILs; separation processes; CO2 capture and conversion; biofuel production; electrochemical energy storage; heat transfer and storage
(This special issue belongs to the Section Chemical Processes and Systems)
Process Control and Modeling of Welding submission deadline 28 Feb 2026 | Viewed by 311 | Submission Open
Keywords: process control; modeling welding; real-time sensing; machine learning; melt-pool dynamics; adaptive welding control; welding intelligence
(This special issue belongs to the Section Manufacturing Processes and Systems)
Emerging Processes in the Design, Modeling, Application and Control of Permanent Magnet Electrical Machines
edited by
submission deadline 28 Feb 2026 | Viewed by 271 | Submission Open
Keywords: permanent magnet machines; electrical PM drives; multiphase PMMs; winding design; efficiency enhancement; finite element analysis; power loss minimization
(This special issue belongs to the Section Automation Control Systems)
Waste Biorefinery Technologies for Sustainable Energy Processes
edited by Marco Antonio Garzón-Zúñiga and Denisse Serrano-Palacios
submission deadline 28 Feb 2026 | Viewed by 202 | Submission Open
Keywords: circular economy; waste (water) to byproducts; lignocellulosic compounds breakdown; anaerobic digestion in two steps; dark fermentation; anaerobic digestion; biogas; VFA; volatile fatty acids; bioenergy; biohydrogen; biomethane; biohythane; bioethanol; biodiesel; biomass pretreatment; biomass conversion; biopolymers; polyhydroxyalkanoates; ethanol; microalgae production; microalgae production from wastewater; life cycle assessment; urban organic waste; organic waste (liquid and solid); organic waste fermentation
(This special issue belongs to the Section Biological Processes and Systems)
Optimised Pathways for Biomass Conversion into Value-Added By-Products submission deadline 28 Feb 2026 | Viewed by 192 | Submission Open
Keywords: biomass by-products; bio-based materials; biorefineries; circular bioeconomy; process optimisation; sustainable development; biomass valorisation; biofuels; green technologies; waste to wealth
(This special issue belongs to the Section Biological Processes and Systems)
Microelectronics Processing Technologies: Current Status and Prospects submission deadline 28 Feb 2026 | Viewed by 166 | Submission Open
Keywords: microelectronics; semiconductor processes MEMS/NEMS integration; fabrication; thermal management; process modeling; packaging; yield and reliability; advanced materials
(This special issue belongs to the Section Manufacturing Processes and Systems)
Hybrid Propulsion Systems: Design, Power Management and Control
edited by , Congbiao Sui and La Xiang
submission deadline 28 Feb 2026 | Viewed by 133 | Submission Open
Keywords: hybrid propulsion; design and optimization; energy efficiency; operational safety; power management; control
(This special issue belongs to the Section Energy Systems)
Advances in Renewable Energy Systems (2nd Edition)
edited by , Virgilio Ciancio and Jacopo Dell’Olmo
submission deadline 5 Mar 2026 | 15 articles | Viewed by 35878 | Submission Open
Keywords: alternative energy sources; eco-compatible energy end uses; availability of renewable energy systems; economic impacts of renewable energy; climate change
(This special issue belongs to the Section Energy Systems)
Advanced Spectrometric and Electronic Determination Technology in Food and Biochemical Analysis submission deadline 5 Mar 2026 | 1 articles | Viewed by 612 | Submission Open
Keywords: food quality; hyperspectral imaging; near-infrared spectroscopy; nuclear magnetic resonance; process control; Raman spectroscopy
(This special issue belongs to the Section Food Process Engineering)
Recycling and Reusing of Various Spent Batteries
edited by Marcos B.J.G. Freitas and Éric Marsalha Garcia
submission deadline 5 Mar 2026 | Viewed by 569 | Submission Open
Keywords: recycling; batteries; lithium-ion batteries; nickel– metal hydride batteries; zinc– manganese oxide batteries; nickel– cadmium battery; green recycling; circular economy
(This special issue belongs to the Section Environmental and Green Processes)
Preparation, Characterization, and Application of Carbon Nanocomposites
edited by Wenqian Chen
submission deadline 5 Mar 2026 | Viewed by 254 | Submission Open
Keywords: carbon nanocomposites; material synthesis; advanced characterization; properties; functional material; sustainable applications
(This special issue belongs to the Section Materials Processes)
Environmental Pollution Control and Renewable Energy Conversion Technologies
edited by Da Cui
submission deadline 5 Mar 2026 | Viewed by 145 | Submission Open
Keywords: porous media; condensation heat and mass transfer; energy storage; renewable energy conversion; CFD; LBM; artificial intelligence in energy and environment; sustainable process engineering
(This special issue belongs to the Section Environmental and Green Processes)
Non-ferrous Metal Metallurgy and Its Cleaner Production submission deadline 10 Mar 2026 | 5 articles | Viewed by 15809 | Submission Open
Keywords: nonferrous metallurgy; green metallurgical processes; resource recovery; waste recycling; sustainable practices; thermodynamics; kinetics
(This special issue belongs to the Section Chemical Processes and Systems)
Drug Carriers Production Processes for Innovative Human Applications (2nd Edition)
edited by
submission deadline 10 Mar 2026 | 5 articles | Viewed by 9940 | Submission Open
Keywords: nanoparticles; nanocapsules; nanospheres; liposomes; foams; carbon nanotubes; dendrimers; cubosomes; niosomes; hydrogels; conventional processes; drug delivery systems; modeling of drug delivery; high-pressure systems; supercritical processes; economic analysis; environmental impact of processes
(This special issue belongs to the Section Pharmaceutical Processes)
Extraction, Separation, and Purification of Bioactive Compounds
edited by Martina Jakovljević Kovač and
submission deadline 10 Mar 2026 | 5 articles | Viewed by 8556 | Submission Open
Keywords: extraction; purification; bioactive components; solvents; chromatography; optimization; innovative techniques
(This special issue belongs to the Section Separation Processes)
New Trends in Hydrodynamics of Industrial Processes: Energy Efficiency and Optimization
edited by and Alejandro Alonzo-Garcia
submission deadline 10 Mar 2026 | 4 articles | Viewed by 4861 | Submission Open
Keywords: mixing; reactors; photocatalysis; computational fluid dynamics; wastewater treatment; porous media
(This special issue belongs to the Section Chemical Processes and Systems)
Electrochemical Sensors for Environmental and Food Sample Detection
edited by and Sasya Madhurantakam
submission deadline 10 Mar 2026 | 1 articles | Viewed by 3655 | Submission Open
Keywords: electrochemical sensor; heavy metal; pesticides; PFAS (per- and polyfluoroalkyl substances); pathogens; toxins; microplastics; environmental contaminants
(This special issue belongs to the Section Chemical Processes and Systems)
Bioactive Compound Function Characterization in Biochemical Engineering submission deadline 10 Mar 2026 | 4 articles | Viewed by 2925 | Submission Open
Keywords: bioactive compounds; functional characterization; biochemical engineering; omics technologies; in silico analysis; natural product-based therapeutics; computational modeling
(This special issue belongs to the Section Biological Processes and Systems)
Supercritical Fluid Technology and Its Applications in Separation Processes submission deadline 10 Mar 2026 | 2 articles | Viewed by 2258 | Submission Open
Keywords: supercritical fluids; extraction; gasification; phase equilibrium; chromatography; sustainability
(This special issue belongs to the Section Separation Processes)
Process Safety and Monitoring of Intelligent and Green Mining Technology (2nd Edition)
edited by Yang Li, Guanglei Zhou and Feiyue Liu
submission deadline 10 Mar 2026 | 4 articles | Viewed by 2238 | Submission Open
Keywords: mining technology; mine safety technology; rock mass stability; ground pressure disaster; mine monitoring and early warning
(This special issue belongs to the Section Energy Systems)
Water Treatment Technology Based on Chemical Processing submission deadline 10 Mar 2026 | 2 articles | Viewed by 1243 | Submission Open
Keywords: advanced oxidation processes (AOPs); chemical water treatment; adsorption and ion exchange; electrochemical processes; photocatalysis; nanomaterials and catalysts; hybrid treatment systems; reaction kinetics and modeling; life cycle assessment (LSA); emergent pollutants
(This special issue belongs to the Section Environmental and Green Processes)
Control and Removal of Heavy Metals in the Environment
edited by Gordana Dević, and
submission deadline 10 Mar 2026 | Viewed by 486 | Submission Open
Keywords: heavy metal; terrestrial and aquatic environments; environmental impact and protection; methods; monitoring
(This special issue belongs to the Section Environmental and Green Processes)
Process Control and Intensification in Chemical Engineering
edited by
submission deadline 10 Mar 2026 | 1 articles | Viewed by 483 | Submission Open
Keywords: process control; process intensification; industrial intelligence; optimal control
(This special issue belongs to the Section Process Control and Monitoring)
Progress in Performance Evaluation and Optimization of Photovoltaic Systems
edited by and Ahmet Serdar Yilmaz
submission deadline 10 Mar 2026 | 1 articles | Viewed by 355 | Submission Open
Keywords: photovoltaic systems; performance evaluation; optimization techniques; solar energy; efficiency improvement; energy storage integration; degradation analysis; environmental impact; real-time monitoring; predictive analytics
(This special issue belongs to the Section Energy Systems)
Advances in Decarbonization Processes in Industry
edited by Talieh Rajabloo
submission deadline 10 Mar 2026 | Viewed by 258 | 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)
Catalysis in Sustainable Fuel Production
edited by Jialu Li
submission deadline 10 Mar 2026 | Viewed by 128 | Submission Open
Keywords: sustainable fuel production; home and heterogenous catalysis; biomass conversion; CO2 utilization; water splitting; hydrogen economy; renewable energy
(This special issue belongs to the Section Energy Systems)
Experimental and Numerical Study of Flame Propagation of Biofuels/Oxidizers/Inert Mixtures (Third Edition)
edited by
submission deadline 10 Mar 2026 | Viewed by 123 | Submission Open
Keywords: combustion of fuels; explosion; biofuels; explosion parameters; burning velocities; simulations
(This special issue belongs to the Section Energy Systems)
The Application and Prospect of Multiphase Flow Technology in Oil and Gas Exploitation submission deadline 13 Mar 2026 | Viewed by 737 | Submission Open
Keywords: multiphase flow; flow assurance; multiphase flow metering; multiphase flow pumping; experimental investigation; CFD
(This special issue belongs to the Section Energy Systems)
Separation and Extraction Techniques in Food Processing and Analysis submission deadline 15 Mar 2026 | 9 articles | Viewed by 30454 | Submission Open
Keywords: separation; extraction; food processing; food quality; new sorbents; green solvents; materials and technologies; sample preparation
(This special issue belongs to the Section Food Process Engineering)
Process Intensification in Chemical Reaction Engineering (2nd Edition) submission deadline 15 Mar 2026 | 4 articles | Viewed by 12558 | Submission Open
Keywords: process intensification; chemical reaction engineering; microreactors; microwaves; sonochemistry; reactive chromatography; reactive distillation; structured reactors; static mixers; microfluidics
(This special issue belongs to the Section Chemical Processes and Systems)
Synthesis, Characterization, and Application of Sustainable Plastic Materials
edited by
submission deadline 15 Mar 2026 | 2 articles | Viewed by 12382 | Submission Open
Keywords: sustainable materials; biodegradable polymers; plastic recycling; microplastic analysis; fluorescent polymers; renewable resources; absorption and emission spectroscopy
(This special issue belongs to the Section Materials Processes)
Power System Optimization for Energy Storage: Methods and Applications
edited by Hejun Yang, Ning Yan and
submission deadline 15 Mar 2026 | 12 articles | Viewed by 9746 | Submission Open
Keywords: energy system; methods; application; market and commercial mode; planning; assessment; operation and maintenance; dispatching and control; stability
(This special issue belongs to the Section Energy Systems)
Process Safety Technology for Nuclear Reactors and Power Plants
edited by , Jipu Wang and Sijuan Chen
submission deadline 15 Mar 2026 | 4 articles | Viewed by 8244 | Submission Open
Keywords: nuclear safety; passive safety systems; digitalization in nuclear power; risk-informed decision making; AI in nuclear lifecycle management
(This special issue belongs to the Section Energy Systems)
Progress in Design and Optimization of Fault Diagnosis Modelling
edited by Xiaoyong Gao, Maoyin Chen, Chaodong Tan and
submission deadline 15 Mar 2026 | 3 articles | Viewed by 4251 | Submission Open
Keywords: model-based diagnosis; data-driven diagnosis methods; process supervision; active fault diagnosis methods; statistical methods for fault diagnosis; soft computing methods for fault diagnosis
(This special issue belongs to the Section Automation Control Systems)
Application of Multiphase Flow Separation Technology in Energy Engineering
edited by Wei Jiang, Naixing Yang and Xiangyuan Zhu
submission deadline 15 Mar 2026 | 2 articles | Viewed by 3760 | Submission Open
Keywords: energy engineering; multiphase flow; simulation; turbomachinery; flow mechanism
(This special issue belongs to the Section Energy Systems)
Biopolymer Processing, Utilization and Applications
edited by
submission deadline 15 Mar 2026 | 2 articles | Viewed by 3311 | Submission Open
Keywords: biopolymeric nano- and micro particles; biopolymers in composites; bacteria-derived biopolymers; biopolymers in packaging; biopolymers in energy; biopolymers in medicine; biopolymers as adsorbents; degradation of biopolymers
(This special issue belongs to the Section Materials Processes)
Oil Shale Mining and Processing
edited by , Chao Yang and Jian Yi
submission deadline 15 Mar 2026 | 1 articles | Viewed by 833 | Submission Open
Keywords: in situ conversion of oil shale; micro-migration of shale oil; enrichment mechanisms of organic matter in oil shale; pyrolysis process of oil shale; analysis of oil shale oil products; high-temperature and high-pressure simulation experiments; isotopes and biomarker compounds; AI-based analysis of oil shale pyrolysis process; evaluation of semi-coke organic carbon; co-pyrolysis of oil shale and coal
(This special issue belongs to the Section Chemical Processes and Systems)
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