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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Advanced Technology in Unconventional Resource Development
edited by Xiuyu Wang and
submission deadline 15 Jun 2026 | 14 articles | Viewed by 17579 | Submission Open
Keywords: tight oil reservoir; seepage law; spontaneous imbibition; CO2 flooding; chemical flooding
(This special issue belongs to the Section Chemical Processes and Systems)
Metal Oxides and Their Composites for Photocatalytic Degradation
edited by Jaideep Malik, Surjeet Chahal and Parmod Kumar
submission deadline 15 Jun 2026 | 4 articles | Viewed by 9161 | Submission Open
Keywords: metal oxides; semiconductor photocatalsysis; composite materials; photocatalyst; wastewater treatment; dye degradation; hetrojunction; advanced oxidation processes (AOPs); environmental remediation; nanomaterials; solar catalysis
(This special issue belongs to the Section Chemical Processes and Systems)
Process System Engineering of Gas Hydrate: Multiple Processes, Scales, Physics Fields and Senarios
edited by , and Jinxiu Yang
submission deadline 15 Jun 2026 | 1 articles | Viewed by 3821 | 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)
Petroleum Characterization and Bioprocesses: Numerical and Experimental Investigation (2nd Edition) submission deadline 15 Jun 2026 | 3 articles | Viewed by 3606 | Submission Open
Keywords: petroleum; crude oil; fuel; nonlinear least square regression methods; meta-heuristic methods; energy; biofuel; bioprocesses
(This special issue belongs to the Section Chemical Processes and Systems)
Advances in Bioenergy and Sustainable Biomaterial Production Processes
edited by and Guang-Way Jang
submission deadline 15 Jun 2026 | 2 articles | Viewed by 1528 | Submission Open
Keywords: biomass-based hydrogen; biofuels; waste to energy; bioeconomy; nanotech catalysts; genetically engineered; sustainable biomaterials
(This special issue belongs to the Section Energy Systems)
Process Innovation and Intensification in Photobioreactors for Enhanced Biomass and Bioenergy Production submission deadline 15 Jun 2026 | 1 articles | Viewed by 600 | Submission Open
Keywords: photobioreactor design and optimization; microalgae and cyanobacteria cultivation; computational fluid dynamics (CFD); light distribution and photon management; bioprocess engineering; techno-economic feasibility; biofuel conversion; scale-up strategies; CO2  fixation and utilization; upstream and downstream processing
(This special issue belongs to the Section Biological Processes and Systems)
Towards Advanced and Sustainable Bio-Based Materials for Green Technologies
edited by and
submission deadline 15 Jun 2026 | Viewed by 371 | Submission Open
Keywords: bio-based materials; green technologies; sustainable polymers; chitosan and cellulose; green solvents; functional coatings; nanocomposites; circular economy; sustainable process design
(This special issue belongs to the Section Biological Processes and Systems)
Modeling, Control and Optimization of Food Fermentation Processes
edited by and Paola Maturano
submission deadline 15 Jun 2026 | Viewed by 231 | Submission Open
Keywords: fermentative process; modeling; control process; design; microorganisms; bioprocess; optimization; food; beverage
(This special issue belongs to the Section Food Process Engineering)
Microstructural Evolution, Corrosion, and Performance of Metallic Materials
edited by Gláucio Soares Da Fonseca and Elivelton Alves Ferreira
submission deadline 15 Jun 2026 | Viewed by 201 | Submission Open
Keywords: microstructural evolution; phase transformations; corrosion behaviour; metallic materials performance; stainless steels; residual stress and inspection; magnetic Barkhausen noise (MBN); non-destructive testing/inspection
(This special issue belongs to the Section Manufacturing Processes and Systems)
AI-Driven Innovations for Enhancing Power System Stability and Operational Efficiency
edited by
submission deadline 18 Jun 2026 | 14 articles | Viewed by 15048 | Submission Open
Keywords: inverter-based resources (IBRs); dispatch optimization; battery energy storage systems (BESSs); power systems stability; distributed energy resources (DERs); transmission and distribution planning; artificial intelligence (AI); electricity markets
(This special issue belongs to the Section Energy Systems)
Advances in Rheology, Biodegradability and Mechanical Properties of Polymers
edited by and Bruno Felipe Urbano Cantillana
submission deadline 20 Jun 2026 | 4 articles | Viewed by 21478 | Submission Open
Keywords: rheology; dynamic mechanical analysis; biodegradable polymers; biodegradability; viscosity; soft matter; hydrogels; nanocomposites
(This special issue belongs to the Section Materials Processes)
Artificial Intelligence-Based Analytics for Data-Driven Decision-Making in Industrial Process Engineering
edited by , Jian Zhang and Dong-Qing Yuan
submission deadline 20 Jun 2026 | 10 articles | Viewed by 19915 | Submission Open
Keywords: data analytics; decision-making; anomaly recognition; Intelligent monitoring systems; artificial intelligence
(This special issue belongs to the Section AI-Enabled Process Engineering)
Multi-Criteria Decision Making in Chemical and Process Engineering submission deadline 20 Jun 2026 | 4 articles | Viewed by 14194 | 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)
Data-Driven Modeling and Applications for Flow, Heat Transfer, and Combustion
edited by Songbai Yao, , Bosen Wang and Weijia Qian
submission deadline 20 Jun 2026 | 5 articles | Viewed by 11808 | Submission Open
Keywords: machine learning; fluid dynamics; heat transfer; reacting flows; numerical modeling; experimental diagnosis
(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 Jun 2026 | 5 articles | Viewed by 9390 | 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)
Recent Advances in Wastewater Treatment Technology to Achieve Low Carbonization
edited by and
submission deadline 20 Jun 2026 | 4 articles | Viewed by 7914 | Submission Open
Keywords: low carbon; wastewater; energy recovery; energy efficiency; circular economy
(This special issue belongs to the Section Environmental and Green Processes)
Geological and Engineering Problems in the Development of Unconventional Oil and Gas Reservoirs (2nd Edition)
edited by Mohamed I. Abdel-Fattah
submission deadline 20 Jun 2026 | 4 articles | Viewed by 6121 | 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)
Biological and Pharmacological Activity of Natural Products submission deadline 20 Jun 2026 | 2 articles | Viewed by 2639 | Submission Open
Keywords: natural products; functional foods; green extraction; bioactive molecules; bioavailability; medicinal chemistry; combinatorial medicine; pharmacological activities; health disorders
(This special issue belongs to the Section Pharmaceutical Processes)
Recent Advances and Technologies in Internal Combustion Engines: Combustion Analysis and Emission Control
edited by and Erdinç Vural
submission deadline 20 Jun 2026 | 3 articles | Viewed by 1923 | Submission Open
Keywords: internal combustion engines (ICEs); combustion analysis; emission control technologies; alternative fuels (hydrogen; HHO; biodiesel; ammonia); computational fluid dynamics (CFD); engine performance and optimization; NOx and soot reduction; fuel injection strategies; sustainable combustion systems; energy and exergy analysis
(This special issue belongs to the Section Environmental and Green Processes)
Green and Scalable Bioprocess Engineering: Enzymatic Systems, Process Intensification and Sustainable Applications submission deadline 20 Jun 2026 | 2 articles | Viewed by 1874 | Submission Open
Keywords: enzymatic bioprocessing; biopharmaceutical processes; biocatalysis; downstream processing; scale-up; process intensification; green chemistry; bio-based products; circular bioeconomy; biomass valorization
(This special issue belongs to the Section Biological Processes and Systems)
Advances in Synthesis and Characterization of Zeolite Catalysts for Sustainable Applications
edited by Bruno O. Dalla Costa, Griselda Alejandra Eimer and María Soledad Legnoverde
submission deadline 20 Jun 2026 | 1 articles | Viewed by 1795 | Submission Open
Keywords: zeolite catalysts; acidic/textural properties modification; characterization; hierarchical zeolites; mesoporous materials; biomass conversion; sustainable catalysis
(This special issue belongs to the Section Catalysis Enhanced Processes)
Synthesis and Functional Applications of Organochalcogen Compounds
edited by , and Luana da Silva Gomes
submission deadline 20 Jun 2026 | Viewed by 296 | Submission Open
Keywords: organochalcogens; synthetic methodologies; redox activity; catalysis; functional materials
(This special issue belongs to the Section Chemical Processes and Systems)
Extraction, Analysis and Applications of Bioactive Natural Products
edited by Ba Vinh Le
submission deadline 20 Jun 2026 | Viewed by 291 | Submission Open
Keywords: natural product chemistry; phytochemistry; pharmacognosy; secondary metabolites; pharmacological effect; underlying mechanisms; NMR; GC-MS; LC-MS; quantitative analysis; inflammation; anti-cancer
(This special issue belongs to the Section Pharmaceutical Processes)
Advances in Drilling and Excavation Theories and Technologies for Petroleum, Coal Seam and Sustainable Resources
edited by and
submission deadline 23 Jun 2026 | 11 articles | Viewed by 7327 | Submission Open
Keywords: well trajectory design; drilling operation; coal seam excavation; wellbore stability; fluid flow in porous media; permeability evolution; machine learning model; geothermal energy; carbon sequestration and storage
(This special issue belongs to the Section Energy Systems)
Numerical Simulation of Oil and Gas Storage and Transportation
edited by Xu Sun, and Zitao Jiang
submission deadline 25 Jun 2026 | 4 articles | Viewed by 7779 | Submission Open
Keywords: oil and gas pipelines; oil and gas tanks; oil and gas underground storage; numerical simulation; artificial intelligence
(This special issue belongs to the Section Energy Systems)
Novel Techniques in Natural Product Extraction to Improve Antimicrobial and Antioxidant Activity in Foods submission deadline 25 Jun 2026 | 4 articles | Viewed by 6441 | Submission Open
Keywords: green technologies; extraction; antioxidant activity; antimicrobial activity; functional components; bioactive compounds
(This special issue belongs to the Section Food Process Engineering)
Machine Learning for Predictive Modeling and Optimization of Manufacturing Processes
edited by Atiq Ur Rehman and Fawad Ali
submission deadline 25 Jun 2026 | 4 articles | Viewed by 5180 | Submission Open
Keywords: machine learning; predictive modeling; manufacturing processes; process optimization; smart manufacturing; deep learning; reinforcement learning; predictive maintenance; process control; defect detection; feature engineering; explainable AI; data-driven manufacturing; Industry 4.0; digital twins; sustainable and smart manufacturing; heuristic optimization methods
(This special issue belongs to the Section Process Control, Modeling and Optimization)
Metal Complexes: Design, Properties and Applications
edited by Lidia Zapała, Elżbieta Woźnicka and
submission deadline 25 Jun 2026 | 2 articles | Viewed by 3197 | Submission Open
Keywords: metal complexes; design and synthesis; structural and spectroscopic properties; catalysis; biological and medicinal applications; green and sustainable chemistry; enzyme mimetics; drug development; bioinorganic chemistry; coordination chemistry; functional materials; environmental and toxicological studies; photocatalysis; molecular magnetism; supramolecular chemistry; electrochemical applications
(This special issue belongs to the Section Chemical Processes and Systems)
Preparation, Synthesis and Chemical Properties of Functional Materials
edited by Apoorva Chaturvedi
submission deadline 25 Jun 2026 | 3 articles | Viewed by 2982 | Submission Open
Keywords: functional materials; synthetic routes; structure– property relationships; multi-functional materials; stimuli-responsive systems
(This special issue belongs to the Section Materials Processes)
Manufacturing Processes and Thermal Properties of Composite Materials
edited by , , Claudia Hernández-Aguilar and Flavio Arturo Domínguez-Pacheco
submission deadline 25 Jun 2026 | 2 articles | Viewed by 2376 | Submission Open
Keywords: composite materials; advanced manufacturing; thermal conductivity; heat resistance; phase change materials; bio-based composites; additive manufacturing; thermal degradation; smart materials; energy-efficient buildings
(This special issue belongs to the Section Manufacturing Processes and Systems)
Laser-Assisted Manufacturing and Materials Processing
edited by Linda Viviana García-Quiñonez and
submission deadline 25 Jun 2026 | 1 articles | Viewed by 1383 | Submission Open
Keywords: laser; materials; laser-assisted; additive manufacturing; laser sintering; thin films
(This special issue belongs to the Section Manufacturing Processes and Systems)
Advances in Numerical Modeling and AI Optimization for Marine and Geothermal Energy Systems
edited by Jianxin Shi, , Xiang Yu and Wanze Wu
submission deadline 25 Jun 2026 | Viewed by 233 | Submission Open
Keywords: marine energy; geothermal energy; simulation for energy system; system modeling in extreme environments; AI application in energy system; optimization for energy system; energy storage; digital operation and maintenance; remote unattended operation
(This special issue belongs to the Section AI-Enabled Process Engineering)
Unconventional Energy, Clean Energy and Carbon Sequestration: Progress in Technology
edited by , Quangui Li, and Guanhua Ni
submission deadline 30 Jun 2026 | 12 articles | Viewed by 23043 | Submission Open
Keywords: unconventional energy resources; coalbed methane; shale gas; reservoir stimulation technology; geo-carbon sequestration; clean energy
(This special issue belongs to the Section Energy Systems)
Integrated Biorefineries for Sustainable Production of Biofuel and Bioproducts
edited by , Ankita Juneja, and
submission deadline 30 Jun 2026 | 4 articles | Viewed by 14699 | Submission Open
Keywords: integrated biorefinery; fermentation; lignin conversion; high-value bioproducts; biofuel; techno-economic analysis; life cycle assessment
(This special issue belongs to the Section Environmental and Green Processes)
Applications of Ultrasound and Other Technologies in Food Processing submission deadline 30 Jun 2026 | 4 articles | Viewed by 13519 | Submission Open
Keywords: food science and technology; physical chemistry of food; artificial intelligence; computer vision; machine learning; sensometrics and consumer studies; sustainability of food agroecosystems; competitiveness processes in food chains
(This special issue belongs to the Section Food Process Engineering)
Advances in the Photocatalysis and Photodegradation of Various Contaminants Present in Water
edited by Manuel J. Chinchillas-Chinchillas, and Horacio Edgardo Garrafa-Gálvez
submission deadline 30 Jun 2026 | 4 articles | Viewed by 13488 | Submission Open
Keywords: photocatalysis; synthesis and characterization; photocatalysts; water pollutants; water treatment; environmental applications; sustainability
(This special issue belongs to the Section Chemical Processes and Systems)
Multiphase Flow Process and Separation Technology
edited by Zhiyi Xiong and Xinwei Wang
submission deadline 30 Jun 2026 | 8 articles | Viewed by 12889 | Submission Open
Keywords: multiphase flow process; separation equipment strengthening; new design; research method; gas– liquid– solid separation
(This special issue belongs to the Section Separation Processes)
Bioenergy, Green Chemistry and Biorefinery: Challenges and Perspectives on Circular Economy and Sustainability
edited by and
submission deadline 30 Jun 2026 | 9 articles | Viewed by 12626 | Submission Open
Keywords: biomass; biofuels; and biomaterials; circular economy; biorefinery; and biowaste treatment technologies; thermal engineering and applied thermodynamics; environmental pollution and pollutant emissions; renewable technologies; numerical simulation; energy utilization; carbon capture; utilization; and storage; urban waste management
(This special issue belongs to the Section Chemical Processes and Systems)
Electrode Materials Design for High-Performance Energy Conversion and Storage Devices
edited by Shamim Ahmed Hira and
submission deadline 30 Jun 2026 | 3 articles | Viewed by 11529 | Submission Open
Keywords: hydrogen production; oxygen evolution reaction; green energy
(This special issue belongs to the Section Energy Systems)
Advanced Research on Marine and Deep Oil & Gas Development
edited by Jianbo Zhang, Xiaohui Sun and Wenqiang Lou
submission deadline 30 Jun 2026 | 11 articles | Viewed by 11219 | Submission Open
Keywords: oil and gas development; marine; deep strata; drilling; multiphase flow; flow assurance; pressure control; production increase; intelligence development; environmental safety
Analysis and Processes of Bioactive Components in Natural Products
edited by and Sanja Radman
submission deadline 30 Jun 2026 | 8 articles | Viewed by 9663 | Submission Open
Keywords: bioactive components; natural products; extraction; isolation; characterization methods; biological activity
(This special issue belongs to the Section Biological Processes and Systems)
Recent Advances in Coagulant Technologies and Applications for Wastewater Treatment submission deadline 30 Jun 2026 | 2 articles | Viewed by 6444 | Submission Open
Keywords: coagulation; wastewater treatment; coagulant technologies; novel materials; organic coagulants; inorganic coagulants; bio-based coagulants; industrial wastewater; environmental impact; Design of Experiments (DoE)  ; Machine Learning (ML) Applications
(This special issue belongs to the Section Environmental and Green Processes)
Modelling and Optimizing Process in Industry 4.0 submission deadline 30 Jun 2026 | 4 articles | Viewed by 5555 | Submission Open
Keywords: process study; process optimization; equipment study; advanced technologies; process automation;   process efficiency
(This special issue belongs to the Section Manufacturing Processes and Systems)
Novel Technologies for the Processing and Quality Assessment of Meat Production submission deadline 30 Jun 2026 | 6 articles | Viewed by 5524 | Submission Open
Keywords: novel intervention strategies for carcass decontamination; novel technologies for meat processing; quality assessment of raw and processed meat; microbiological and chemical safety of meat and meat products; preservation techniques; shelf-life extension; nutritional composition of meat and meat products; functional meat products; sensory quality and consumer perception of meat and meat products
(This special issue belongs to the Section Food Process Engineering)
Enzymes, Biocatalysis and Metabolic Engineering for Enabling Sustainability
edited by Cintia Mariana Romero
submission deadline 30 Jun 2026 | 3 articles | Viewed by 5445 | 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)
Modern Machine Learning Applications in Control and Optimization of Energy Power and Storage Systems
edited by and
submission deadline 30 Jun 2026 | 4 articles | Viewed by 5072 | Submission Open
Keywords: machine learning models; energy power system; energy storage management system; grid management and control; renewable energy integration; energy consumption prediction; power system state estimation; cybersecurity in energy systems; sustainable energy solutions
(This special issue belongs to the Section Energy Systems)
Design, Fabrication, Modeling, and Control in Biomedical Systems
edited by , Thanyani Pandelani and
submission deadline 30 Jun 2026 | 2 articles | Viewed by 4995 | Submission Open
Keywords: biomedical systems; medical device design; additive manufacturing in healthcare; computational modeling in biomedicine; control systems in biomedical applications; AI-driven biomedical engineering; finite-element analysis in healthcare; biocompatible materials; wearable and implantable devices; robotics in healthcare; digital twins in medicine; smart materials for medical applications; nanotechnology in biomedicine; cyber-physical systems in healthcare; internet of medical things (IoMT); human– machine interaction in medicine
(This special issue belongs to the Section Biological Processes and Systems)
Research Advances in Modeling, Optimization, and Control of Distributed Energy Systems
edited by Yskandar M. Hamam and
submission deadline 30 Jun 2026 | 2 articles | Viewed by 4952 | Submission Open
Keywords: renewable energy; optimal planning; optimal operation and control; distributed energy management; mixed energy sources; energy storage management.
(This special issue belongs to the Section Energy Systems)
Corrosion Processes of Metals: Mechanisms and Protection Methods submission deadline 30 Jun 2026 | 3 articles | Viewed by 4476 | Submission Open
Keywords: electrochemical corrosion; localized corrosion; crevice corrosion; galvanic corrosion; modeling and simulation; corrosion coatings; high-temperature corrosion; biomaterials corrosion; corrosion of light alloys; corrosion in concrete
(This special issue belongs to the Section Materials Processes)
Fiber-Reinforced Composites: Latest Advances and Interesting Research
edited by Changfang Zhao, Ming Li and Xuyao Zhang
submission deadline 30 Jun 2026 | 4 articles | Viewed by 4186 | Submission Open
Keywords: fiber composites; matrices; manufacturing processes; material responses; structural behavior; theoretical model; simulation; application; sustainability; recycle and reuse; green resources
(This special issue belongs to the Section Materials Processes)
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