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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Circular Economy on Production Processes and Systems Engineering submission deadline 30 Sep 2025 | 8 articles | Viewed by 3563 | Submission Open
Keywords: circular economy; resource efficiency; design for longevity; energy reduction; waste reduction
(This special issue belongs to the Section Sustainable Processes)
Advances in Electrode Materials for Energy Storage Applications
edited by , An-Ya Lo and
submission deadline 30 Sep 2025 | 2 articles | Viewed by 3527 | Submission Open
Keywords: nanocomposites; porous materials; electrode materials; surface engineering; electrode modifications; ; electrochemical properties; charge/discharge kinetics; energy storage devices
(This special issue belongs to the Section Materials Processes)
Numerical Simulation of Flow and Heat Transfer Processes
edited by and William Quitiaquez
submission deadline 30 Sep 2025 | 4 articles | Viewed by 3506 | Submission Open
Keywords: turbulent reacting flows; combustion and clean fuels; fluid– structure interaction with multi-physics and multi-scale models; nanofluids in microchannel heat sinks; applications in porous media; advancements in turbulence modeling; hybrid numerical methods; machine learning integration
(This special issue belongs to the Section Energy Systems)
Recent Developments on Waste-to-Energy Conversion: Biomass, Waste Gasification, Pyrolysis and Combustion Processes submission deadline 30 Sep 2025 | 2 articles | Viewed by 3190 | Submission Open
Keywords: biofuels; biomass waste; sustainable energy; energy systems; bioenergy; pyrolysis; combustion; biorefinery; bioreactors
(This special issue belongs to the Section Energy Systems)
Study on Solid Waste Characterization and Control, and Pollutant Transport Dynamics
edited by , Jose Antonio Grande, and
submission deadline 30 Sep 2025 | 1 articles | Viewed by 3114 | Submission Open
Keywords: solid waste; pollutant transport; environmental modeling; petrophysical properties; geophysical prospecting; geochemical prospecting; physicochemical processes; contaminant characterization; surface water; groundwater
(This special issue belongs to the Section Environmental and Green Processes)
Advanced Separation and Purification Processes submission deadline 30 Sep 2025 | 2 articles | Viewed by 3014 | Submission Open
Keywords: separation techniques; membrane technology; adsorption processes; distillation methods; biotechnological separation
(This special issue belongs to the Section Separation Processes)
Development of Smart Materials for Chemical Sensing
edited by Ella Linganiso-Dziike, Siziwe Sylvia Gqoba and Katekani Shingange
submission deadline 30 Sep 2025 | 2 articles | Viewed by 2541 | Submission Open
Keywords: materials deposition; materials characterization; nanomaterials; chemical sensors; environmental remediation; sensors for climate-smart agriculture; clean environment; clean water; health diagnostics; air quality monitoring
(This special issue belongs to the Section Chemical Processes and Systems)
Advances in Oil and Gas Reservoir Modeling and Simulation
edited by Fathi Boukadi, Talal Gamadi and
submission deadline 30 Sep 2025 | 3 articles | Viewed by 2397 | Submission Open
Keywords: CO2 sequestration; plume propagation; CO2 EOR; integration challenges; environmental impact
(This special issue belongs to the Section Energy Systems)
Application of Multiphase Flow Separation Technology in Energy Engineering
edited by Wei Jiang, Naixing Yang and Xiangyuan Zhu
submission deadline 30 Sep 2025 | 2 articles | Viewed by 2071 | Submission Open
Keywords: energy engineering; multiphase flow; simulation; turbomachinery; flow mechanism
(This special issue belongs to the Section Energy Systems)
Advances in the Composition and Extraction Process of Natural Extracts to Insects and Microorganisms Management submission deadline 30 Sep 2025 | 2 articles | Viewed by 1971 | Submission Open
Keywords: natural products; entomology insecticide activity; bioactive compounds; molecular diagnostic; pathogenic microorganism in insect
(This special issue belongs to the Section Biological Processes and Systems)
Applications of Non-Thermal and Thermal Technologies in Food Processing, 2nd Edition submission deadline 30 Sep 2025 | 4 articles | Viewed by 1864 | Submission Open
Keywords: ultrasound; cold plasma; pulsed electric field; high pressure; irradiation; pulsed light
(This special issue belongs to the Section Food Process Engineering)
Process System Engineering of Gas Hydrate: Multiple Processes, Scales, Physics Fields and Senarios
edited by , and Jinxiu Yang
submission deadline 30 Sep 2025 | 1 articles | Viewed by 1812 | Submission Open
Keywords: gas hydrate; dynamic processes of hydrates (accumulation; formation; decomposition; monitoring); multiphase scales (molecular; core; well; formation); multiple senarios (simulation; experiment; field trial and testing); multiphase flows in porous media and pipelines; multiple physics fields (thermal; hydraulic; mechanical; chemical); fluid migration; seabed methane seepage; global warming
(This special issue belongs to the Section Chemical Processes and Systems)
Optimal Design, Control and Simulation of Energy Management Systems
edited by Chutong Wang, Junhui Li, Wuqin Tang and Yubin Wang
submission deadline 30 Sep 2025 | 2 articles | Viewed by 1806 | Submission Open
Keywords: energy management systems; advanced control strategies; integration of renewable energy sources; distributed energy resources; energy storage systems; simulation techniques; demand response and load forecasting
(This special issue belongs to the Section Energy Systems)
Design and Performance Optimization of Heterogeneous Catalysts
edited by Dan Wu and Dandan Han
submission deadline 30 Sep 2025 | 3 articles | Viewed by 1775 | Submission Open
Keywords: heterogeneous catalysts; catalyst design; performance optimization; selectivity and stability; surface modification; reaction mechanisms; energy conversion; industrial catalysis; metal-oxide composites; computational modeling
(This special issue belongs to the Section Catalysis Enhanced Processes)
Bioethanol Production: Process, Technology and Sustainable Industrial Applications submission deadline 30 Sep 2025 | 1 articles | Viewed by 1744 | Submission Open
Keywords: ethanol; waste valorization; consolidated bioprocessing; separation techniques; consolidated bioprocessing; simultanteous saccharification and fermentation
(This special issue belongs to the Section Sustainable Processes)
Coalbed Methane Development Process
edited by Songhang Zhang, Qiulei Guo and Xinlu Yan
submission deadline 30 Sep 2025 | 4 articles | Viewed by 1731 | Submission Open
Keywords: deep coalbed methane; exploration and development; technological advancements; coal reservoir; gas content; water chemistry; CO2-enhanced coalbed methane; coalbed methane numerical simulation; dewatering optimization; production patterns and law of coalbed methane wells
(This special issue belongs to the Section Energy Systems)
Chemical and Microbiological Analyses of Wastes, Effluents and Materials
edited by Roberta Guzzinati and Luigi Sciubba
submission deadline 30 Sep 2025 | 2 articles | Viewed by 1728 | Submission Open
Keywords: spectrophotometry; mass spectrometry; chromatography; electrophoresis; green chemistry; contaminant of emerging concern; antimicrobial resistance (AMR); bioassay
(This special issue belongs to the Section Environmental and Green Processes)
Electrode Materials Design for High-Performance Energy Conversion and Storage Devices
edited by Shamim Ahmed Hira and
submission deadline 30 Sep 2025 | 2 articles | Viewed by 1443 | Submission Open
Keywords: hydrogen production; oxygen evolution reaction; green energy
(This special issue belongs to the Section Energy Systems)
Structure Optimization and Transport Characteristics of Porous Media
edited by Zhenlong Song, Tingting Wang and Kunpeng Zhang
submission deadline 30 Sep 2025 | 3 articles | Viewed by 1390 | Submission Open
Keywords: multiphase flow in reservoirs; AI-optimized porous adsorbents; hybrid physics– AI frameworks; sorption– separation integrated pore architectures; AI for reservoir management
(This special issue belongs to the Section Materials Processes)
Advanced Wastewater Treatment Processes and Technologies submission deadline 30 Sep 2025 | 2 articles | Viewed by 1389 | Submission Open
Keywords: wastewater treatment; green methods; pollutant removal; material design; nanomaterials; adsorption; advanced oxidation processes; catalysis
(This special issue belongs to the Section Environmental and Green Processes)
Power Electronics for Energy Transition and Renewable Energy Conversion Processes, 2nd Edition submission deadline 30 Sep 2025 | 1 articles | Viewed by 1198 | Submission Open
Keywords: power electronics; energy transition; power converters; power systems; renewable energy technologies; energy conversion
(This special issue belongs to the Section Sustainable Processes)
Advances in Electrochemical Biosensors: Applications, Challenges, and Prospect
edited by and
submission deadline 30 Sep 2025 | 1 articles | Viewed by 858 | Submission Open
Keywords: electrochemical detection; biosensor; sensor; electrodes; materials
(This special issue belongs to the Section Environmental and Green Processes)
Control and Optimization of Smart Grids, Microgrid Systems and Active Distribution Networks
edited by Haidong Tao, Xiaojuan Zhu and Yi Zhou
submission deadline 30 Sep 2025 | 1 articles | Viewed by 740 | Submission Open
Keywords: modeling and simulation techniques for large-scale power electronic systems; damping analysis; control; and optimization techniques; power flow and power quality control and optimization techniques; impedance measurement and impedance matching techniques; broadband oscillation analysis and suppression techniques; grid-forming control and optimization techniques
(This special issue belongs to the Section Energy Systems)
Model Predictive Control in Industrial Power Systems
edited by , Hongpeng Xu and
submission deadline 30 Sep 2025 | Viewed by 668 | Submission Open
Keywords: model predictive control; energy storage; power system; machine learning; optimization; smart grid
(This special issue belongs to the Section Energy Systems)
Advanced Processes for Bioenergy and Biofuel Production
edited by Messias Silva
submission deadline 30 Sep 2025 | Viewed by 539 | Submission Open
Keywords: bioenergy; biofuel; biochemical conversion processes; thermochemical conversion processes; production optimization; renewable energy
(This special issue belongs to the Section Energy Systems)
Chemistry of Zeolites: Synthesis, Structure and Crystallization
edited by
submission deadline 30 Sep 2025 | Viewed by 522 | Submission Open
Keywords: zeolite; synthesis; structure; crystallization mechanisms; crystallization processes; sources; properties
(This special issue belongs to the Section Chemical Processes and Systems)
Lignin Utilization: Depolymerization and Bioconversion Process
edited by Fang Deng
submission deadline 30 Sep 2025 | 1 articles | Viewed by 519 | Submission Open
Keywords: depolymerization; bioconversion; enzyme; fermentation; metabolic engineering; process optimization
(This special issue belongs to the Section Environmental and Green Processes)
New Advances in Cold Atmospheric Plasma Technologies
edited by Zhitong Chen and
submission deadline 30 Sep 2025 | Viewed by 433 | Submission Open
Keywords: plasma technology; plasma applications; plasma physics; mechanisms; reactive species
(This special issue belongs to the Section Manufacturing Processes and Systems)
Research Trends in Electrochemical Technology for Sustainable Environmental Applications
edited by Martín Muñoz-Morales and Ester López-Fernández
submission deadline 30 Sep 2025 | Viewed by 430 | Submission Open
Keywords: sustainable materials; waste treatment; electrochemical techniques; novel electrodes; electrochemical sensors; pollutants; oxidation; reduction
(This special issue belongs to the Section Chemical Processes and Systems)
Metal Catalysts in Organic Chemistry
edited by
submission deadline 30 Sep 2025 | Viewed by 385 | Submission Open
Keywords: transition metal; homogeneous catalysis; heterogeneous catalysis; mechanistic investigation
(This special issue belongs to the Section Catalysis Enhanced Processes)
Advances in Carbon Materials’ Thermal Analysis
edited by Daniel Lardizábal-Gutiérrez and Raul Perez-Bustamante
submission deadline 30 Sep 2025 | Viewed by 341 | Submission Open
Keywords: thermoanalysis; mineral carbons; carbon nanotubes (CNTs); graphenes; turbostratic carbon; charcoal performance; pyrolysis of carbons; thermoanalysis of hybrid compounds and functional materials; carbonaceous materials; methodological advances
(This special issue belongs to the Section Materials Processes)
Molecular Simulation in Mineral Flotation Processes
edited by Wanzhong Yin and Yuan Tang
submission deadline 30 Sep 2025 | 1 articles | Viewed by 325 | Submission Open
Keywords: molecular simulation; flotation; mineral surfaces; adsorption; surface wettability; hydrophobicity; flotation reagents
(This special issue belongs to the Section Chemical Processes and Systems)
Advances in Bioelectrochemical Systems for Wastewater Treatment
edited by , Lenia-Nezaet de Brito Gonsalvesh and
submission deadline 30 Sep 2025 | Viewed by 260 | Submission Open
Keywords: electrochemically active microorganisms; microbial fuel cell; bio-electrochemical processes; anaerobic respiration; biosensors; electrode design and operation of catalysts; exocellular electric transfer; biological wastewater treatment
(This special issue belongs to the Section Chemical Processes and Systems)
Advancing Drug Discovery: Machine Learning and Virtual Screening in Phytochemical Research
edited by Yannick Belo Nuapia and Manimbulu Nlooto
submission deadline 30 Sep 2025 | Viewed by 163 | Submission Open
Keywords: machine learning; virtual screening; phytochemicals; molecular docking; QSAR (quantitative structure– activity relationship)
(This special issue belongs to the Section Pharmaceutical Processes)
Two-Phase Flows: Modeling and Simulation
edited by , Songbai Cheng, Wenhai Qu and
submission deadline 30 Sep 2025 | Viewed by 163 | Submission Open
Keywords: two-phase flow; interfacial dynamics; phase change; computational fluid dynamics; heat transfer; artificial intelligence; energy systems; experimental validation
(This special issue belongs to the Section Chemical Processes and Systems)
Advances in Heat Transfer and Thermal Energy Storage Systems
edited by , José Alfredo Hernández Pérez and David Juárez Romero
submission deadline 30 Sep 2025 | Viewed by 160 | Submission Open
Keywords: thermal energy storage; non renewable energy; renewable energy; mechanical energy storage; chemical energy storage; electric energy storage; electrochemical energy storage
(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 30 Sep 2025 | Viewed by 156 | Submission Open
Keywords: heat pump  ; design  ; performance analysis  ; renewable energy  ; thermal energy storage
(This special issue belongs to the Section Energy Systems)
Intelligent Robotics: Autonomous Control, Perception, and Collaboration
edited by
submission deadline 30 Sep 2025 | Viewed by 150 | Submission Open
Keywords: AI in robotics; motion planning; control systems; robot coordination; multi-robot systems; perception; sensing
(This special issue belongs to the Section Manufacturing Processes and Systems)
Fly Ash Utilization, Characterization and Applications submission deadline 30 Sep 2025 | Viewed by 149 | Submission Open
Keywords: fly ash; characterization; utilization; applications; waste management; durability; environmental impact; sustainability
(This special issue belongs to the Section Chemical Processes and Systems)
New Research on Oil and Gas Equipment and Technology, 2nd Edition submission deadline 30 Sep 2025 | Viewed by 123 | Submission Open
Keywords: oil and gas equipment; design; modeling; analysis; evaluation
(This special issue belongs to the Section Energy Systems)
Enzymes, Biocatalysis and Metabolic Engineering for Enabling Sustainability
edited by Cintia Mariana Romero
submission deadline 30 Sep 2025 | Viewed by 101 | Submission Open
Keywords: enzyme; biocatalysis; metabolic engineering; sustainability; environmental bioremediation; agro-industry; food production; catalysis; biosynthesis; microbial fermentation; genetically engineered microorganisms
(This special issue belongs to the Section Catalysis Enhanced Processes)
Technologies, Applications and Challenges of Pectin in Industrial Processes submission deadline 30 Sep 2025 | Viewed by 95 | Submission Open
Keywords: composites; covalent and non-covalent interaction; extraction; pectin-based gels; pectin fermentation; coating; nanoparticles with pectin; modified pectin
(This special issue belongs to the Section Biological Processes and Systems)
Advanced Design and Smart Control of Electric Machines and Actuators
edited by
submission deadline 30 Sep 2025 | Viewed by 83 | Submission Open
Keywords: piezoelectric actuators; piezoelectric motors; piezoelectric pumps; piezoelectric sensors; piezoelectric micro jets; piezoelectric energy harvesting systems; ultrasonic transducers; ultrasonic-assisted machining
(This special issue belongs to the Section Manufacturing Processes and Systems)
Green Diagnostic Tools for Improving Processes and Optimal Manufacturing Quality
edited by
submission deadline 1 Oct 2025 | Viewed by 380 | Submission Open
Keywords: green diagnostics; statistical methods; artificial intelligence; manufacturing 4.0; manufacturing processes and quality
(This special issue belongs to the Section Manufacturing Processes and Systems)
1st SUSTENS Meeting: Advances in Sustainable Engineering Systems
edited by , and Nikolaos A. Diangelakis
submission deadline 5 Oct 2025 | 12 articles | Viewed by 9871 | Submission Open
Keywords: process design; sustainability; machine learning; green technologies; biotechnology
(This special issue belongs to the Section Sustainable Processes)
Green Chemistry: From Wastes to Value-Added Products (2nd Edition) submission deadline 10 Oct 2025 | 10 articles | Viewed by 22135 | Submission Open
Keywords: sustainability; circular economy; recycling technologies; closed-loop systems; waste management
(This special issue belongs to the Section Environmental and Green Processes)
Data-Based Prediction Models in Energy Systems: From Principles to Applications
edited by , , Xiaogang Li and Huohai Yang
submission deadline 10 Oct 2025 | 7 articles | Viewed by 10704 | Submission Open
Keywords: grey system models; machine learning/deep learning models; data-driven prediction models; intelligent optimization; petroleum engineering; renewable energy  
(This special issue belongs to the Section Energy Systems)
Rheological Properties of Food Products submission deadline 10 Oct 2025 | 2 articles | Viewed by 4262 | Submission Open
Keywords: dough rheology; dynamic oscillatory tests; flow properties; creep-recovery test; farinoghraph; mixolab; rheological behavior; functional ingredients; functional food; food formulations
(This special issue belongs to the Section Food Process Engineering)
Absorption Heat Pumps for Heating and Cooling: Modeling, Simulation, Design, Optimization, and Experiments
edited by and José Alfredo Hernández Pérez
submission deadline 10 Oct 2025 | 2 articles | Viewed by 2683 | Submission Open
Keywords: absorption; single and advanced cycles; absorption heat pumps; heat exchangers; mass and heat transfer coefficients; thermal systems; optimization and artificial intelligence
(This special issue belongs to the Section Energy Systems)
Geological and Engineering Problems in the Development of Unconventional Oil and Gas Reservoirs (2nd Edition)
edited by Mohamed I. Abdel-Fattah
submission deadline 10 Oct 2025 | 2 articles | Viewed by 952 | Submission Open
Keywords: unconventional reservoirs; hydraulic fracturing; reservoir characterization; seismic and well log analysis; basin modeling and petroleum systems; machine learning and AI applications
(This special issue belongs to the Section Energy Systems)
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