GAS TURBINE
Type:
ALSTOM POWER
Model:
GT13E2 Version A-MOD (the only one in operation with Syngas)
Nominal GPO:
188 MW @ NOC Conditions
Fuel:
Dual - MBTU Syngas / Diesel Oil
Main Characteristics:
5 turbine stages, 22 compressor stages (comp. ratio=15)
72 Dual Fuel Burners
Suitable for mixed operation
Automatic Emergency Change Over to Diesel operation
N2/Syngas ratio to keep fuel LHV at 7.0 MJ/kg
STEAM TURBINE
Type:
Alstom Power (Ansaldo Design)
Model:
HP-HDS 065/10 / LP-ND 37B
Nominal GPO:
100 MW
Design Basis:
3 TURBINE SECTIONS (HP, MP and LP)
4 ADMISSIONS AT DIFFERENT STEAM PRESSURE
1st – HHS form HRSG (101Barg@480°C)
2nd – HHS from Aux. Boiler (99Barg@490°C)
3rd – MS from HRSG (16Barg@490°C)
4th - LS from HRSG (4 Barg@175°C)
3 EXTRACTION AT DIFFERENT STEAM PRESSURE
MS to Refinery (13 Barg)
LS to Refinery (4.5 Barg)
LLS to Dehareator (1.4 Barg)
SEA WATER CONDENSER (70/90°C – 35/65mbara)
POWER SYSTEM
Plant is connected with the national energy grid
2 lines are dedicated to the energy purchasing
The standard consumption is of about 46MW (ab. 365,000 MWh/y)
- 2 lines are dedicated to the delivery of the energy produced The nominal production is 288MW (ab. 2,200,000 MWh/y)
- The Plant is equipped with 4 levels of voltage (tri-phase at 50Hz):
132KV for delivery;
15.75 KV produced by GT & ST generators (two step-up transformers (196MVA and 121MVA) are used to increase the voltage up to 132KV)
10.5 and 6.6 KV for the medium voltage utilities;
400 V for low voltage utilities.
PLANT CONTROL SYSTEM
The Plant Control (SIL3) is based on:
- Control System
DCS : ABB Advant OCS (Unix Operat. System) 16 distributed control nodes from 250 to 1000 ms 15 control stations
- Safety System
PLC: Hima H51q 8 distributed control nodes From 50 to 300ms
- Plant Instrumentation
5000 instruments 4000 control loops 150 authomatic control logics 2000 galvanic barriers 600 electronic cards
- People on Shift
3 Board operators 2 Shift supervisors 5 Field operators