53rd LISBON World Congress on “Green Chemical Engineering, Energy & Environmental Sustainability" (LGCE3S-26) scheduled on Oct. 8-10, 2026 Lisbon (Portugal) is for the engineers, practitioners, scientists, researchers, scholars, and students from all around the world and it also includes the industry people to present ongoing research activities, and hence to foster research relations between Academia and industry. The conference is sponsored by Eminent Association of Pioneers (EAP). This conference provides opportunities for the delegates to share new ideas and application experiences face to face, to establish business or research relations and to find global partners for future collaboration. All the submitted conference papers will be peer reviewed by the program/technical committees of the Conference.

Call for papers/Topics

Topics of interest for submission include any topics related to:

1. Green Chemical Engineering 

This pillar focuses on the "12 Principles of Green Chemistry" applied to industrial scales.

• Sustainable Reaction Engineering

  • Catalysis: Homogeneous, heterogeneous, and biocatalysis (enzymes).

  • Alternative Activation Methods: Microwave, ultrasound, and photo-chemistry.

  • Process Intensification: Combining multiple unit operations into one (e.g., reactive distillation).

• Green Solvents and Separation

  • Supercritical Fluids (e.g., $scCO_2$).

  • Ionic Liquids and Deep Eutectic Solvents.

  • Aqueous Phase Chemistry.

  • Membrane-based separations vs. energy-intensive distillation.

• Waste Valorization

  • Converting "waste" into feedstock (Circular Economy).

  • Atom Economy: Maximizing the incorporation of starting materials into the final product.

2. Energy Sustainability 

This focuses on the transition from fossil-based energy to renewable and efficient systems.

• Renewable Energy Conversion

  • Solar Energy: Photovoltaics and concentrated solar power.

  • Bioenergy: First to fourth-generation biofuels (algal and metabolic engineering).

  • Wind and Geothermal Engineering.

• Energy Storage and Carriers

  • The Hydrogen Economy: Green hydrogen production via water electrolysis.

  • Advanced Battery Chemistry: Lithium-ion, Solid-state, and Flow batteries.

  • Fuel Cells: Proton Exchange Membrane (PEM) and Solid Oxide (SOFC) cells.

• Energy Efficiency

  • Heat Integration and Pinch Analysis.

  • Waste Heat Recovery systems.

  • Smart Grids and Decentralized Energy Systems.

3. Environmental Sustainability 

This covers the monitoring, protection, and restoration of the natural environment.

• Carbon Management

  • Carbon Capture and Storage (CCS).

  • Carbon Capture and Utilization (CCU): Turning $CO_2$ into fuels or polymers.

  • Negative Emission Technologies (Direct Air Capture).

• Water-Energy Nexus

  • Desalination technologies.

  • Advanced Oxidation Processes (AOPs) for wastewater treatment.

  • Recovery of nutrients (Nitrogen/Phosphorus) from waste streams.

• Pollution Prevention & Remediation

  • Air quality monitoring and scrubbing technology.

  • Bioremediation: Using microbes to clean soil and water.

  • Plastic Lifecycle: Biodegradable polymers and chemical recycling.

4. Cross-Cutting Systems & Assessment

These topics tie the three pillars together through data and logic.

• Life Cycle Assessment (LCA)

  • Cradle-to-Grave vs. Cradle-to-Cradle analysis.

  • Quantifying "Environmental Footprints" (Carbon, Water, and Land).

• Industrial Ecology

  • Eco-industrial parks (where one factory's waste is another's fuel).

  • Sustainability metrics and Green Chemistry "Dashboards."

• Policy and Techno-Economic Analysis (TEA)

  • Feasibility studies of new green technologies.

  • Regulatory frameworks (Carbon taxes, REACH compliance).