Ipojuca (RNEST) (Brazil) - 2x400 t/h
Delivery and assembly of boilers for refinery gas and oil combustion, in cooperation with consortium partner – Brazilian company Montcalm Montagens Industrias, S.A.
| Project Data | |
| Final customer: | PETRÓLEO BRASILEIRO S.A. (PETROBRAS), Rio De Janeiro |
| Operator (plant): | REFINARIA ABREU E LIMA, Ipojuca |
| Location: | Pernambuco |
| Country: | Brazil |
| Contract: | 06/2009 |
| Contract (services): | 02/2010 |
| Term of delivery: | 09/2010 |
| Preliminary acceptance of work: | 05/2011 |
| Technical Parameters | |
| Number of boilers: | 2 |
| Type of boiler: | Three-pass boiler, self-supporting, with one drum, natural circulation |
| Maximal continuous steam rate: | 400 t /h |
| Superheated steam pressure: | 11,92 MPa |
| Superheated steam temperature: | 520 °C |
| Description of Fuel | |
| Main fuel: | refinry gas, oil |
Scope of Delivery
- Three-pass boiler, self-supporting, with one drum, natural circulation, outdoor version.
- Boiler pressure system supported on lower headers of evaporator. Steel structure serves for fixing the platforms and access routes to the boiler.
- The steam temperature controlled by feed water injection into steam between the individual stages of the superheater 1,2 and 2,3.
- The boiler can be operated in two air modes depending on type of used fuel:
- Ambient air is supplied to burners by one radial flow air fan and can be heated in the steam air heater.
- Hot air from SNOX unit is supplied to the burners.
- Depending on the type of used fuel, flue gas after passing the electrostatic precipitator is led by one ID fan into SNOX unit or into the chimney stack.
- The chimney stack is common for both steam boilers.
- Heating surfaces will be cleaned by steam air heaters.
- Combustion equipment consists of nine low-NOx burners situated in the front wall of the combustion chamber by three in three rows above each other.