Fired heaters can be broken into categories based on process requirements and plant layouts. Also, it depends on the application, the heater shape and size (vertical cylindrical, cabin, box) and tube configuration (horizontal, vertical, arbour, helical, etc.).
Categories are as follows:
A. Vertical Tube Cabin Heaters (Single or Double Fired)
- Hydrogen Reformers
- Ethylene Cracking Furnaces
- Hydrocracker
- Crude Charge
B. Horizontal Tube Cabin Heaters (Single or Double Fired)
- Delayed Cokers (DCU)
- Atmospheric (crude/ bitumen)
- EDC Cracking Furnaces
- Hydrocrackers
- Vacuum Heaters
- Visbreakers
- Crude Heaters (CDU/ AVU)
- Hot Oil Heating
- Ketene Furnaces
C. Vertical Cylindrical Heaters (hairpin coil or helical coil)
- Most of the above services