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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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Chromatographic Techniques in Food Industry Processes

edited by

Fouad EL Mansouri

and Jamal Brigui

submission deadline 10 Aug 2025 | Viewed by 186 | Submission Open

Keywords: food chemistry; natural products ; antioxidants ; polyphenols ; chromatography ; spectroscopy ; mass spectrometry ; extraction ; sample preparation

(This special issue belongs to the Section Food Process Engineering)

Advances in Metallurgical Processing and Involved Separation Techniques

edited by

Amilton Botelho Junior

submission deadline 10 Aug 2025 | Viewed by 177 | Submission Open

Keywords: hydrometallurgy; pyrometallurgy; recycling; energy transition

(This special issue belongs to the Section Separation Processes)

Evaluation and Utilization of Antioxidant Activity in Food Products

edited by

Grzegorz Bartosz

and

Izabela Sadowska-Bartosz

submission deadline 10 Aug 2025 | Viewed by 177 | Submission Open

Keywords: antioxidant; food; FRAP; CUPRAC; PRAC; ABTS; DPPH; polyphenols; carotenoids; analysis

Bioenergy, Green Chemistry and Biorefinery: Challenges and Perspectives on Circular Economy and Sustainability

edited by

Maria Rios

and

Glauber Cruz

submission deadline 10 Aug 2025 | Viewed by 176 | 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)

Advances in Renewable Energy Systems (2nd Edition)

edited by

Ferdinando Salata

, Virgilio Ciancio and Jacopo Dell’Olmo

submission deadline 15 Aug 2025 | 10 articles | Viewed by 15882 | 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

edited by

Yupeng Xu

Xiaogang Shi

and

Lei Yang

submission deadline 15 Aug 2025 | 3 articles | Viewed by 7021 | 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)

Recent Advances in Surface Engineering and Coating Technologies in Manufacturing Processes

edited by

Miguel Angel Selles Canto

, Kuniaki Dohda, Steven Schmid and

Samuel Sanchez Caballero

submission deadline 15 Aug 2025 | 3 articles | Viewed by 1884 | Submission Open

Keywords: tribology; manufacturing; joining; lubrication; coatings; surface engineering; friction; wear; contact mechanics

(This special issue belongs to the Section Manufacturing Processes and Systems)

Research on Green Processing and Testing Technologies for Food and Beverages

edited by

Konstantina Tsikrika

and

Pol Giménez Gil

submission deadline 15 Aug 2025 | 1 articles | Viewed by 1429 | 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)

Biomass Energy Conversion for Efficient and Sustainable Utilization

edited by

Maginot Ngangyo-Heya

and

Artemio Carrillo-Parra

submission deadline 15 Aug 2025 | Viewed by 1109 | Submission Open

Keywords: bioenergy; biomass transformation technologies; biomass pretreatment; waste revaluation; advanced biofuels; hybrid biofuels.

(This special issue belongs to the Section Energy Systems)

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 949 | 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)

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 603 | 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)

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 579 | 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)

Insights into Hydrogen Production Using Solar Energy

edited by

Mahmoud Eltaweel

submission deadline 15 Aug 2025 | 1 articles | Viewed by 521 | 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)

Electrochemically-Based Hydrogen Energy Preparation in Energy Conversion

edited by Zhiyuan Jiang and Zhiguo Qu

submission deadline 15 Aug 2025 | Viewed by 416 | 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,

Luciana Veloso da Costa

and Luiza Vasconcellos

submission deadline 15 Aug 2025 | Viewed by 295 | 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 199 | 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 179 | 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)

Process Automation and Smart Manufacturing in Industry 4.0/5.0

edited by

Sergey Y. Yurish

submission deadline 20 Aug 2025 | 12 articles | Viewed by 18096 | Submission Open

Keywords: process control; automation; smart factory; smart manufacturing; virtual engineering

(This special issue belongs to the Section Automation Control Systems)

Green Separation and Purification Processes

edited by

Inês Portugal

Carlos Manuel Silva

and

José Aniceto

submission deadline 20 Aug 2025 | 9 articles | Viewed by 17745 | Submission Open

Keywords: green processes; bioactive ingredients

(This special issue belongs to the Section Separation Processes)

Synthesis and Extraction Processes of Biotechnological Drugs of Plant Origin

edited by

Marijana Zovko Končić

and

Sylwia Zielińska

submission deadline 20 Aug 2025 | 7 articles | Viewed by 16451 | 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

Ibrahim Abu-Reidah

submission deadline 20 Aug 2025 | 10 articles | Viewed by 7231 | 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

edited by

Vincenza Calabrò

and

Catia Giovanna Lopresto

submission deadline 20 Aug 2025 | 2 articles | Viewed by 6266 | Submission Open

Keywords: biofuel; wastewater treatment; waste biomass

(This special issue belongs to the Section Environmental and Green Processes)

Application of Advanced Technologies in Microbial Biotechnology and Bioprocessing

edited by

Agustín Corral Luna

Monserrath Felix-Portillo

and Martha Arévalos-Sánchez

submission deadline 20 Aug 2025 | Viewed by 1438 | Submission Open

Keywords: biotechnology; bioprocess; synthetic biology; sustainability; microbiology; sequencing; artificial intelligence

(This special issue belongs to the Section Biological Processes and Systems)

Advances in Microbial Fuel Cell Technology for Wastewater Treatment and Energy Storage

edited by

Eustace Y. Fernando

and

Godfrey Kyazze

submission deadline 20 Aug 2025 | Viewed by 923 | Submission Open

Keywords: microbial fuel cells; bioelectrochemical cells; energy storage; batteries; capacitors; super capacitors; biosensing devices; bio-monitoring devices and environmental sensing devices

(This special issue belongs to the Section Environmental and Green Processes)

Sustainable and Intelligent Energy Systems and Processes: Recent Advances and Challenges (2nd Edition)

edited by

Mateo Bašić

, Marko Vekić and

Ivan Grgić

submission deadline 20 Aug 2025 | 1 articles | Viewed by 882 | Submission Open

Keywords: sustainability; intelligent control; renewable energy; reliability and resilience; smart grid; energy storage; edge computing; FACTS; power quality

(This special issue belongs to the Section Energy Systems)

Numerical Simulation and Engineering Application of Rock Mechanics and Geotechnical Engineering (Second Edition)

edited by Chenxi Ding,

Chun Feng

, Chun Liu, Liyun Yang and

Jianguo Wang

submission deadline 20 Aug 2025 | 1 articles | Viewed by 646 | Submission Open

Keywords: rock mechanics; geotechnical engineering; complex reservoir; numerical simulation; soil– fluid interaction; construction techniques

(This special issue belongs to the Section Energy Systems)

Analysis and Integration of Micropolar Fluid Systems

edited by Kyriaki-Evangelia Aslani and

Efstratios Tzirtzilakis

submission deadline 20 Aug 2025 | Viewed by 323 | Submission Open

Keywords: micropolar fluid; microrotation; microstructure; non-Newtonian fluid; couple stress; complex fluid; colloidal fluid; ferrofluid; blood; nanofluid

(This special issue belongs to the Section Energy Systems)

Process Intensification in Chemical Reaction Engineering (2nd Edition)

edited by

Vincenzo Russo

Pasi Tolvanen

and

Stefan Haase

submission deadline 25 Aug 2025 | 3 articles | Viewed by 7933 | 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)

Fuzzy Control System: Design and Applications

edited by

Wen-Jer Chang

submission deadline 25 Aug 2025 | 3 articles | Viewed by 3598 | Submission Open

Keywords: advanced fuzzy theory; control design and application; hybrid intelligent systems; type-2 fuzzy control; fuzzy system optimization; intelligent machine learning

(This special issue belongs to the Section Process Control and Monitoring)

Model of Unconventional Oil and Gas Exploration

edited by Bowen Hu, Huimin Wang and Kangsheng Xue

submission deadline 25 Aug 2025 | 4 articles | Viewed by 3554 | Submission Open

Keywords: unconventional oil and gas; reservoir geomechanics; multi-physics field coupling; flow in porous and factured media; reservoir staility

(This special issue belongs to the Section Chemical Processes and Systems)

Synthesis, Application and Structural Analysis of Composite Materials

edited by Caleb Carreño-Gallardo

submission deadline 25 Aug 2025 | 2 articles | Viewed by 3067 | Submission Open

Keywords: reinforcement synthesis; material functionalization; metal matrix composites; carbides; porous materials; powder

(This special issue belongs to the Section Materials Processes)

Thermal Engineering: Energy Conversion, Numerical Simulation, and Advanced Control

edited by

Moisés Montiel-González

Jesus Cerezo

and Miguel Ángel Basurto-Pensado

submission deadline 25 Aug 2025 | 3 articles | Viewed by 1575 | Submission Open

Keywords: computational fluid dynamics (CFD); energy efficiency; AI tools; thermal systems; sustainability; materials; mathematical model

(This special issue belongs to the Section Energy Systems)

2nd Edition of Artificial Intelligent Techniques in the Optimal Operation of Oil and Gas Production Systems

edited by

Guoqing Han

Xingyuan Liang

and Xiaojun Wu

submission deadline 25 Aug 2025 | 3 articles | Viewed by 1242 | Submission Open

Keywords: liquid loading; artificial lift; multiphase flow; gas lift; plunger lift; artificial intelligence; oil production

(This special issue belongs to the Section Energy Systems)

Production of Renewable Hydrogen: Prospects and Challenges

edited by

Mariana de Mattos V. M. Souza

submission deadline 25 Aug 2025 | 1 articles | Viewed by 1051 | Submission Open

Keywords: hydrogen; renewables; electrolysis; biomass; reforming; catalysts

(This special issue belongs to the Section Catalysis Enhanced Processes)

Advanced Studies of Oil and Gas Flow in Unconventional Oil and Gas Reservoir

edited by

Adebayo Abdulrauf

Liwu Jiang

and Ahmed Al-Yaseri

submission deadline 25 Aug 2025 | 1 articles | Viewed by 729 | Submission Open

Keywords: unconventionals; petrophysics; geomechanics; oil; gas; carbondioxide; hydrogen storage

(This special issue belongs to the Section Chemical Processes and Systems)

Metal-Organic Frameworks (MOFs) and Their Application in Storage, Adsorption and Separation Processes

edited by Abeer Al Mohtar and Georges Mouchaham

submission deadline 25 Aug 2025 | Viewed by 478 | Submission Open

Keywords: MOFs application; adsorption processes; separation processes; gas storage; liquid purification; volatile organic compound capture

(This special issue belongs to the Section Materials Processes)

Renewables Integration and Hybrid System Modelling

edited by Dallia Ali

submission deadline 25 Aug 2025 | Viewed by 375 | Submission Open

Keywords: renewable generation; grid integration; hybrid renewable– hydrogen energy systems; optimal system design and sizing; hybrid system cost and life-cycle analysis

(This special issue belongs to the Section Energy Systems)

Production, Purification and Applications of Carbon Nanomaterials

edited by Viviany Geraldo, Edelma Eleto da Silva, Evandro Augusto de Morais and Fabrício Vieira de Andrade

submission deadline 25 Aug 2025 | Viewed by 366 | Submission Open

Keywords: nanomaterials; carbon nanotubes; production of nanomaterials; application in composites; in situ methodology; dispersion of nanomaterials; purification

(This special issue belongs to the Section Materials Processes)

Micro- and Nano-Scaled Functionalization and Characterization of Surfaces of Materials for Biomedical Applications

edited by

Yuri Dekhtyar

and

Alina Vladescu

submission deadline 25 Aug 2025 | Viewed by 312 | Submission Open

Keywords: cells; biomolecules; coatings; biomaterials; surface morphology; in vitro/in vivo tests; corrosion; degradation; biocompatibility

(This special issue belongs to the Section Materials Processes)

Research on Conversion and Utilization of Waste Biomass

edited by

Marcos Alberto Coronado Ortega

and

José Ramón Ayala Bautista

submission deadline 25 Aug 2025 | Viewed by 236 | Submission Open

Keywords: biomass; bioenergy; biofuels; bioproducts; biochemicals; biorefinery; conversion processes

(This special issue belongs to the Section Environmental and Green Processes)

Transfer Learning Methods in Equipment Reliability Management

edited by Lei Wang, Xin Zhang and Xixing Li

submission deadline 31 Aug 2025 | 10 articles | Viewed by 12011 | Submission Open

Keywords: equipment reliability; transfer learning; domain adaptation; domain generalization; interpretability; fault diagnosis; fault prediction

(This special issue belongs to the Section AI-Enabled Process Engineering)

New Frontiers in Chromatographic Separation Technology

edited by

Laurence Muhr

and

Laetitia Canabady-Rochelle

submission deadline 31 Aug 2025 | 5 articles | Viewed by 9355 | Submission Open

Keywords: chromatography process development; multicolumn chromatography; selective stationary phase; electrodeionization; expanded bed chromatography; chromatography for downstream process; ion exchange in hydrometallurgy; chromatography column modeling; chromatography column design and control

(This special issue belongs to the Section Separation Processes)

Municipal Solid Waste for Energy Production and Resource Recovery

edited by

Md. Salatul Islam Mozumder

, Rajan Kumar Thapa, Surajbhan Sevda and

Nabin Aryal

submission deadline 31 Aug 2025 | 8 articles | Viewed by 8177 | Submission Open

Keywords: waste-to-energy technologies; life-cycle analysis of MSW; application of circular economy to MSW; production of new materials from MSW; recycling; recovery; and valorisations of waste; development of new technology for resource recovery from MSW; novel and environmental friendly MSW management systems

(This special issue belongs to the Section Environmental and Green Processes)

Analysis and Optimization Control of Active Distribution Networks and Smart Grids

edited by

and

submission deadline 31 Aug 2025 | 10 articles | Viewed by 7138 | Submission Open

Keywords: active distribution network; smart grid; renewables; analysis and control; uncertainty; forecasting

(This special issue belongs to the Section Energy Systems)

Geophysical Methods and Processes for Unconventional Reservoir Exploration and Characterization in Petroleum System

edited by

Zhiqi Guo

, Feng Zhang and Yang Liu

submission deadline 31 Aug 2025 | 5 articles | Viewed by 5384 | Submission Open

Keywords: shale gas and oil; tight gas and oil; volcanic gas and oil; heavy oil; oil shale; coalbed methane; seismic data processing; seismic inversion; seismic numerical and physical modeling; quantitative seismic interpretation; rock physics; petrophysics; well-log; gravity and magnetic methods; electrical and electromagnetic methods; porosity; fluids; fractures; pore pressure; geostress; interbedded strata

(This special issue belongs to the Section Energy Systems)

Sustainable Management of Wastewater and Sludge

edited by Zhetai Hu, Zhiqiang Zuo and

Bo Wang

submission deadline 31 Aug 2025 | 3 articles | Viewed by 5196 | Submission Open

Keywords: sustainable biotechnology; wastewater treatment; sludge treatment; low greenhouse gas emission; resource recovery; nitrogen removal; integrated wastewater management; use of digestate; bioplastics

(This special issue belongs to the Section Environmental and Green Processes)

Recent Advances in Environment and Energy Related Processes in Offshore Geotechnical Engineering

edited by

Xiang Sun

, Lujun Wang, Yuze Wang and

Zhixiang Chen

submission deadline 31 Aug 2025 | 4 articles | Viewed by 4389 | Submission Open

Keywords: offshore geotechnical engineering; environmental geomechanics; energy geomechanics; wind turbine foundations; structure– environment interaction; ocean engineering; offshore energy engineering; offshore environmental engineering; offshore mining; island and reef engineering

(This special issue belongs to the Section Environmental and Green Processes)

Recent Developments in Enhanced Oil Recovery (EOR) Processes

edited by

Alireza Kazemi

submission deadline 31 Aug 2025 | 4 articles | Viewed by 4082 | Submission Open

Keywords: smart water flooding; nanotechnology; CO2 injection; microbial EOR; low-salinity flooding; shale EOR; AI in EOR; hybrid techniques; heavy oil EOR; environmentally friendly EOR

(This special issue belongs to the Section Energy Systems)

Production and Industrial Engineering in Metal Processing

edited by Ronaldo Câmara Cozza

submission deadline 31 Aug 2025 | 4 articles | Viewed by 4061 | Submission Open

Keywords: metallurgical processes of manufacturing; mechanical processes of manufacturing; plastic deformation of metals; machining; additive manufacturing; wear; lubrication

(This special issue belongs to the Section Manufacturing Processes and Systems)

Non-ferrous Metal Metallurgy and Its Cleaner Production

edited by