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 Process Systems Engineering: Selected Papers from China PSE Annual Meeting
edited by and
submission deadline 31 Jul 2025 | 11 articles | Viewed by 11092 | Submission Open
Keywords: process design; artificial intelligence; process control; supply chain; optimization; carbon neutrality; sustainable development
(This special issue belongs to the Section Process Control and Monitoring)
Recent Advances in Hydrocarbon Production Processes from Geoenergy
edited by , Fengrui Sun and
submission deadline 31 Jul 2025 | 11 articles | Viewed by 9350 | Submission Open
Keywords: hydrate; unconventional reservoir; hot dry rock; coalbed methane reservoir; EOR; geo-engineering; reservoir stimulation
(This special issue belongs to the Section Energy Systems)
Biomass to Renewable Energy Processes, 2nd Edition
edited by Giulia Monteleone and
submission deadline 31 Jul 2025 | 4 articles | Viewed by 8934 | Submission Open
Keywords: circular economy; renewable energy; bioenergy; advanced biofuel; biorefinery; energy efficiency
(This special issue belongs to the Section Energy Systems)
Recent Advances in Carbon Capture, Utilisation and Storage Technology and the Green Development of Geological Energy submission deadline 31 Jul 2025 | 5 articles | Viewed by 8826 | Submission Open
(This special issue belongs to the Section Chemical Processes and Systems)
Modeling and Optimization for Multi-scale Integration
edited by
submission deadline 31 Jul 2025 | 7 articles | Viewed by 5428 | Submission Open
Keywords: modeling; optimization; multi-scale; digital twin; simulation; data-driven modeling; scale-up
(This special issue belongs to the Section Chemical Processes and Systems)
Design and Optimisation of Solar Energy Systems
edited by Manuel Jesús Rodríguez-Pérez, and Felipe Noh Pat
submission deadline 31 Jul 2025 | Viewed by 3316 | 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)
Sediment Contamination and Metal Removal from Wastewater
edited by Yahya El Hammoudani, Khadija Haboubi and Fouad Dimane
submission deadline 31 Jul 2025 | Viewed by 2832 | Submission Open
Keywords: sediment contamination; heavy metal removal; wastewater treatment; environmental remediation; sustainable technologies
(This special issue belongs to the Section Environmental and Green Processes)
Extraction, Separation, and Purification of Bioactive Compounds
edited by Martina Jakovljević Kovač and
submission deadline 31 Jul 2025 | 2 articles | Viewed by 2451 | Submission Open
Keywords: extraction; purification; bioactive components; solvents; chromatography; optimization; innovative techniques
(This special issue belongs to the Section Separation Processes)
Recycling and Value-Added Utilization of Secondary Resources
edited by Jiawei Wen, Wenhao Yu and
submission deadline 31 Jul 2025 | 2 articles | Viewed by 2270 | Submission Open
Keywords: value-added utilization; secondary resources; recovery; critical metal; upcycling; lifecycle assessment
(This special issue belongs to the Section Environmental and Green Processes)
Experiments and Numerical Simulations for Heat Transfer and Flow of Supercritical Fluids
edited by Qian Li, Jue Wang and Wenke Zheng
submission deadline 31 Jul 2025 | 3 articles | Viewed by 1900 | Submission Open
Keywords: supercritical fluids; testing technology; numerical simulation method; flow and heat transfer; system; equipment; CO2 brayton cycle; natural gas liquefaction and gasification
(This special issue belongs to the Section Energy Systems)
Recent Advances in Additive Manufacturing and 3D Printing
edited by and Jagannadh Satyavolu
submission deadline 31 Jul 2025 | 1 articles | Viewed by 908 | Submission Open
Keywords: additive manufacturing; 3D printing technologies; hybrid nanocomposites; biobased materials; biocompatible materials; multi-material printing; aerospace applications; sustainable manufacturing; large-scale 3D printing; advanced manufacturing techniques
(This special issue belongs to the Section Manufacturing Processes and Systems)
Clean Energy Systems—Current State and Future Perspectives
edited by Jiale Yan and
submission deadline 31 Jul 2025 | 1 articles | Viewed by 832 | Submission Open
Keywords: clean energy use and consumption; development of clean energy technologies; clean energy transmission and conversion; optimization of clean energy supply networks; clean energy and economic policy; clean energy and regional development
(This special issue belongs to the Section Energy Systems)
Development of Cutting-Edge Nanomaterials and Composite Materials for Sustainable Energy Application
edited by Kunyapat Thummavichai and Fang Xu
submission deadline 31 Jul 2025 | 1 articles | Viewed by 773 | Submission Open
Keywords: composite materials; smart grid application; simulation energy solutions; nanotechnology; renewable applications
(This special issue belongs to the Section Chemical Processes and Systems)
Application of Adaptive Control, Fault Detection and Deep Learning in Electrical Engineering
edited by and
submission deadline 31 Jul 2025 | Viewed by 488 | 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)
Metal Nanoparticles (MNPs): Green Synthesis and Catalytic Applications submission deadline 31 Jul 2025 | Viewed by 465 | Submission Open
Keywords: adsorption phenomenon; absorption phenomenon; biomedical applications; catalytic applications; characterization; energy storage; environmental remediation; green synthesis; metal nanoparticles; transition energy; water treatments
(This special issue belongs to the Section Chemical Processes and Systems)
Innovations in Waste Heat Recovery in Industrial Processes
edited by and Shukun Wang
submission deadline 31 Jul 2025 | Viewed by 411 | Submission Open
Keywords: waste heat recovery; power generation; thermal management; energy conversion; clean industrial production; thermodynamic systems; carbon reduction potential
(This special issue belongs to the Section Sustainable Processes)
Innovations and Advances in Green Electrochemical Technologies for a Sustainable Future submission deadline 31 Jul 2025 | Viewed by 347 | 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)
Advances in Optically Functional Nanomaterials
edited by Piyush Agarwal and
submission deadline 31 Jul 2025 | Viewed by 312 | Submission Open
Keywords: quantum optics; nanomaterials; plasmonics; ultrafast lasing; optical communication
(This special issue belongs to the Section Materials Processes)
Optimizing Metal Extraction Processes: Recent Advances in Leaching Technology
edited by
submission deadline 31 Jul 2025 | Viewed by 233 | Submission Open
Keywords: leaching; metals; extraction; metallurgy; novel processes; sustainable processes
(This special issue belongs to the Section Separation Processes)
Natural Gas/Hydrogen Liquefaction Processes and Refrigerating System
edited by Heng Sun
submission deadline 31 Jul 2025 | Viewed by 180 | 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)
Recent Advances in Energy and Dynamical Systems submission deadline 31 Jul 2025 | Viewed by 171 | Submission Open
Keywords: dynamic systems; energy systems; estimation; control; simulation; data-driven; fault detection
(This special issue belongs to the Section Energy Systems)
Emerging Technologies for Renewable Energy Utilization to Diversify the Energy Matrix
edited by Edwin Lenin Chica Arrieta and Ainhoa Rubio-Clemente
submission deadline 1 Aug 2025 | 1 articles | Viewed by 2032 | Submission Open
Keywords: renewable energy; environmental impact assessment; developing countries; sustainability; lifecycle analysis; carbon footprint; biodiversity conservation; run-of-the-river hydroelectric; green technology; policy frameworks
(This special issue belongs to the Section Energy Systems)
Extraction, Separation, and Medicinal Analysis of Natural Products
edited by , Mhamed Ahari and Amine Salhi
submission deadline 5 Aug 2025 | 1 articles | Viewed by 1636 | Submission Open
Keywords: natural product; extraction; isolation and purification; characterization; medicinal analysis
(This special issue belongs to the Section Biological Processes and Systems)
Research on Battery Energy Storage in Renewable Energy Systems
edited by and
submission deadline 10 Aug 2025 | 5 articles | Viewed by 12306 | Submission Open
Keywords: battery energy storage; modeling; safety; thermal management; integration; optimization
(This special issue belongs to the Section Energy Systems)
Process Systems Engineering for Environmental Protection submission deadline 10 Aug 2025 | 8 articles | Viewed by 10997 | Submission Open
Keywords: process systems engineering; environmental protection; sustainable development; process analysis; optimization and integration; decision analysis; phase change material; energy storage
(This special issue belongs to the Section Process Control and Monitoring)
Recent Technologies on CO2 Capture and (Photo) Electrochemical Utilization
edited by , , Ning Qi and
submission deadline 10 Aug 2025 | 1 articles | Viewed by 1913 | Submission Open
Keywords: CO2 capture; CO2 utilization; modeling; simulation; and optimization; life-cycle assessment; technoecomomic analysis.
(This special issue belongs to the Section Energy Systems)
Addressing Environmental Issues with Advanced Oxidation Technologies
edited by Maria Alejandra Ayude and Lucila Inés Doumic
submission deadline 10 Aug 2025 | 1 articles | Viewed by 1667 | Submission Open
Keywords: advanced oxidation technologies (AOTs); wastewater treatment; organic and inorganic pollutants; environmental impact; process efficiency and optimization
(This special issue belongs to the Section Environmental and Green Processes)
Advances in Interactions of Polymers in Emulsion Systems
edited by Jelena Milinković Budinčić, and
submission deadline 10 Aug 2025 | 1 articles | Viewed by 1463 | Submission Open
Keywords: polymer– surfactant interactions; polymer– polymer interactions; emulsions; adsorption on the interface; polymers; biopolymers; disperse systems; interfacial properties
(This special issue belongs to the Section Chemical Processes and Systems)
Research on Water Pollution Control and Remediation Technology
edited by
submission deadline 10 Aug 2025 | 2 articles | Viewed by 1420 | 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)
Design, Inspection and Repair of Oil and Gas Pipelines
edited by Wei Liang
submission deadline 10 Aug 2025 | 1 articles | Viewed by 1168 | 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 and Application of Microalgae and Microalgae–Bacteria Biotechnologies
edited by , Francisco J. Choix and
submission deadline 10 Aug 2025 | Viewed by 271 | Submission Open
Keywords: microalga– bacteria; microalgae biotechnology; pollution remotion by microalgae; microalga biomass characterization; stress mitigation in microalga; microalga growth-promoting bacteria
(This special issue belongs to the Section Biological Processes and Systems)
Advances in Metallurgical Processing and Involved Separation Techniques submission deadline 10 Aug 2025 | Viewed by 203 | Submission Open
Keywords: hydrometallurgy; pyrometallurgy; recycling; energy transition
(This special issue belongs to the Section Separation Processes)
Advances in Renewable Energy Systems (2nd Edition)
edited by , Virgilio Ciancio and Jacopo Dell’Olmo
submission deadline 15 Aug 2025 | 12 articles | Viewed by 18572 | 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)
Multiscale Modeling and Numerical Simulation of Multiphase Flow submission deadline 15 Aug 2025 | 3 articles | Viewed by 7391 | Submission Open
Keywords: multiphase flow; particle; numerical simulation; heat and mass transfer; multiscale models
(This special issue belongs to the Section Process Control and Monitoring)
Biomass Energy Conversion for Efficient and Sustainable Utilization submission deadline 15 Aug 2025 | 1 articles | Viewed by 1661 | Submission Open
Keywords: bioenergy; biomass transformation technologies; biomass pretreatment; waste revaluation; advanced biofuels; hybrid biofuels.
(This special issue belongs to the Section Energy Systems)
Research on Green Processing and Testing Technologies for Food and Beverages submission deadline 15 Aug 2025 | 1 articles | Viewed by 1618 | Submission Open
Keywords: Ultrasound (US); High-Pressure Processing (HPP); cold plasma; Pulsed Electric Field (PEF); LC-MS; GC-MS; FTIR; PCR; RT-PCR; NGS
(This special issue belongs to the Section Food Process Engineering)
Advances in Computer Simulation of Condensed Matter Systems
edited by Kolattukudy Poulose Santo
submission deadline 15 Aug 2025 | 1 articles | Viewed by 1427 | Submission Open
Keywords: machine learning; computer simulations; molecular dynamics; Monte Carlo simulations; coarse-grained models; density functional theory; polymers; nanomaterials; interfacial systems; porous materials; colloids; membranes; biomolecules
(This special issue belongs to the Section Materials Processes)
Catalytic Gasification and Reforming Processes for Chemical Engineering
edited by Carlos Vera, Mariana Busto and Enrique Tarifa
submission deadline 15 Aug 2025 | 1 articles | Viewed by 1355 | Submission Open
Keywords: catalytic gasification; tars; steam reforming; cracking; reforming; synthesis gas; biomass gasification; coal-biomass gasification; plastics gasification; kinetics; processes
(This special issue belongs to the Section Chemical Processes and Systems)
Insights into Hydrogen Production Using Solar Energy
edited by
submission deadline 15 Aug 2025 | 1 articles | Viewed by 909 | Submission Open
Keywords: solar-to-hydrogen conversion; photoelectrochemical water splitting; photocatalysis for hydrogen generation; thermochemical hydrogen production; renewable energy integration
(This special issue belongs to the Section Energy Systems)
Preparation and Optimization of Carbon Nanomaterials and Composites for Biological and Chemical Applications
edited by Lin Jia Yin
submission deadline 15 Aug 2025 | 1 articles | Viewed by 868 | Submission Open
Keywords: carbon nanomaterials; nanocomposites; synthesis optimization; biomedical applications; chemical sensors; nanostructure engineering; sustainable nanotechnology
(This special issue belongs to the Section Materials Processes)
Advances in Engine Combustion Performance, Flow and Energy Conversion Efficiency
edited by Han Xu, Zenghui Yin and Junheng Liu
submission deadline 15 Aug 2025 | 1 articles | Viewed by 760 | Submission Open
Keywords: efficient energy conversion; fuel properties; combustion theory and technology; thermodynamic cycles; thermomechanical analysis; fluid mechanics
(This special issue belongs to the Section Energy Systems)
Electrochemically-Based Hydrogen Energy Preparation in Energy Conversion
edited by Zhiyuan Jiang and Zhiguo Qu
submission deadline 15 Aug 2025 | Viewed by 445 | Submission Open
Keywords: hydrogen evolution and oxidation reaction; electrochemical water electrolysis; hydrogen production; electrochemical cells and reactors; electrochemical hydrogen storage; proton exchange membrane fuel cells
(This special issue belongs to the Section Energy Systems)
Microbiological Environmental Monitoring in the Pharmaceutical Industry
edited by Marcelo Brandão, and Luiza Vasconcellos
submission deadline 15 Aug 2025 | Viewed by 356 | Submission Open
Keywords: pharmaceutical industry; environmental monitoring; contamination control strategy; quality control; microbiological identification; microbiological investigation; microbiological control; bioburden
(This special issue belongs to the Section Pharmaceutical Processes)
Innovative Robotic Process Control in Agriculture: Enhancing Efficiency and Sustainability
edited by Jingyao Gai and Jiqing Chen
submission deadline 15 Aug 2025 | Viewed by 238 | 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)
Green Photocatalysis for a Sustainable Future
edited by Lei Cheng, Yang Li and Jian Yang
submission deadline 15 Aug 2025 | Viewed by 220 | Submission Open
Keywords: photocatalysts; homogeneous photocatalysis; heterogeneous photocatalysis; solar energy generation; value-added chemical generation; biomass-related conversion; artificial photosynthesis
(This special issue belongs to the Section Catalysis Enhanced Processes)
Green Separation and Purification Processes submission deadline 20 Aug 2025 | 12 articles | Viewed by 21577 | Submission Open
Keywords: green processes; bioactive ingredients
(This special issue belongs to the Section Separation Processes)
Process Automation and Smart Manufacturing in Industry 4.0/5.0
edited by
submission deadline 20 Aug 2025 | 12 articles | Viewed by 21289 | Submission Open
Keywords: process control; automation; smart factory; smart manufacturing; virtual engineering
(This special issue belongs to the Section Automation Control Systems)
Synthesis and Extraction Processes of Biotechnological Drugs of Plant Origin submission deadline 20 Aug 2025 | 8 articles | Viewed by 18641 | Submission Open
Keywords: biosynthesis; biosynthetic pathways; extraction procedures; medicinal plant; plant biotechnology; plant cell cultures; plant metabolites
(This special issue belongs to the Section Pharmaceutical Processes)
Phytochemicals: Extraction, Optimization, Identification, Biological Activities, and Applications in the Food, Nutraceutical, and Pharmaceutical Industries (2nd Edition)
edited by
submission deadline 20 Aug 2025 | 13 articles | Viewed by 10639 | Submission Open
Keywords: phytochemical identification; biological activity; fingerprint; secondary metabolites; liquid and gas chromatography; mass spectrometry; analytical methods; phenolic compounds; bioactives; functional ingredients
(This special issue belongs to the Section Pharmaceutical Processes)
Process Intensification for Waste Valorization submission deadline 20 Aug 2025 | 2 articles | Viewed by 6545 | Submission Open
Keywords: biofuel; wastewater treatment; waste biomass
(This special issue belongs to the Section Environmental and Green Processes)
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