Here is a list of equipment commonly found in a petroleum refinery:

1. Distillation Column: Used for separating crude oil into various fractions based on their boiling points.

2. Heat Exchangers: Transfer heat between different process streams, improving energy efficiency.

3. Reactors: Used for various chemical reactions, such as catalytic cracking or hydrogenation.

4. Fractionation Towers: Further separates different hydrocarbon fractions obtained from distillation.

5. Pumps: Transport fluids throughout the refinery, maintaining proper flow rates.

6. Compressors: Increase the pressure of gases for different processes, such as catalytic reforming.

7. Turbines: Convert energy from fluid or gas flow into mechanical energy to power different equipment.

8. Furnaces: Provide heat for processes like crude oil distillation or thermal cracking.

9. Separators: Separate different phases, such as separating water from crude oil.

10. Filters: Remove impurities or particulates from fluids or gases.

11. Desalters: Remove salt from crude oil before processing.

12. Condensers: Cool down and condense vaporized substances into liquids.

13. Storage Tanks: Hold and store crude oil, intermediate products, or final products.

14. Flare System: Safely burn off excess gases or vapors to prevent environmental hazards.

15. Cooling Towers: Remove heat from various processes by cooling water through evaporation.

16. Blowers: Provide air or gas flow for different processes, such as fluid catalytic cracking.

17. Valves: Control the flow of fluids or gases within the refinery.

18. Instruments and Control Systems: Monitor and control process parameters to ensure safe and efficient operations.