1. Heterogeneous & Homogeneous Catalysis

2. Catalysis for Renewable Energy & Hydrogen Production

3. Green Chemistry & Sustainable Chemical Processes

4. Reaction Engineering & Process Optimization

5. Nanocatalysts & Advanced Catalytic Materials

6. Industrial Catalytic Reactor Design

7. Petrochemical & Refinery Process Engineering

8. Computational Catalysis & Molecular Modeling

9. Electrocatalysis & Fuel Cell Technologies

10. Photocatalysis & Solar Energy Conversion

11. Biocatalysis & Enzyme Engineering

12. Catalysis for Carbon Capture & CO₂ Utilization

13. Process Intensification & Sustainable Manufacturing

14. Polymerization Catalysis & Materials Synthesis

15. Chemical Kinetics & Reaction Mechanisms

16. Catalysis in Pharmaceutical Manufacturing

17. Environmental Catalysis & Pollution Control

18. Advanced Separation & Purification Technologies

19. Catalytic Materials Characterization Techniques

20. Microreactor & Flow Chemistry Technologies

21. Sustainable Petrochemical Processes

22. Biomass Conversion & Bio-Refinery Technologies

23. Surface Science & Adsorption Phenomena

24. Catalysis for Ammonia & Hydrogen Economy

25. AI & Machine Learning in Chemical Engineering

26. Process Safety & Risk Management

27. Advanced Chemical Process Simulation

28. Circular Economy & Sustainable Chemical Systems

29. Emerging Trends in Catalytic Science

30. Innovations in Chemical Engineering & Industrial Applications