PETROTEL LUKOIL 30 MW Condensation Power Unit
Short description:
Thermo-mechanical installations
Within Petrotel Lukoil SA operates a Combined Heat & Power Plant- CHPPII which supplies the entire thermal power necessary to the refinery (steam for technologic process and hot water for the district heating circuit) and a part of the electricity for self consumption within the refinery.
Petrotel Lukoil SA also generates, beside basic products resulting from crude oil refinery, refinery gas and refinery coke refining.
In order to capitalize these combustible by-products and generate electric power for the own consumption and electricity surplus delivery to third parties, it is proposed to enlarge the existing CHPPII by one 260 t/h, 100 bar, 5400C fluidized bed combustion steam boiler and one 30 MW condensation turbine. The 260 t/h fluidized bed combustion steam boiler will use mainly refinery coke generated within the company. The 30MW steam turbine will be located in the extension of the existing turbine hall.
The circulant fluidized bed combustion steam boiler and pertaining associated equipment (coke bunkers, limestone bunkers, sand bunker, electrostatic precipitator, air and gas fans, flue gas exhaust to stack) will be located outdoor, adjacent to turbine hall extension. To exhaust the flue gas from the boiler, it will be used the existing stack attending the 120 t/h boilers in CHPPII.
Under regular operation, the new boiler will be fired by coke while on start-up by refinery gas, natural gas or fuel oil.
The existing 3x20 t/h, 3x12 MW power plant diagram is with collecting bus-bars on side of: live steam, start-up steam, low and medium pressure steam, boiler feed water (hot bus-bar, cold bus-bar) purge, exhaust and drainage. The new unit is to be connected with power plant bus-bars diagram, parallel with existing units.
The main condensate cooling in the 30MW turbine condensator will be performed in closed circuit using an existing 10,000 m3 cooling tower to be rehabilitated.
To discharge water, connections with similar sewerage network existing in the area will be performed.
Petroleum Coke Handling Plant
The boiler basic fuel is the petroleum coke, generated in refinery, at coking battery. The petroleum coke will be transported to the location on existing railway. The coke handling plant supplies fuel to the boiler, safety continuously and at required flow; it consists of: railway unload station, crushing plant, crushed coke store.
Limestone Handling Plant
The 70-150 mm grain limestone is brought to the power plant by trucks.
The limestone handling plant is composed of: truck unload station underground type, with bunkers, sorting-crushing plant, crushed limestone store sized for min. 15 days capacity, secondary crushing and grinding plant.
Sand Handling Plant
To start-up the boiler, fine 0-60 mm grain sand is used; it will be brought to the power plant by trucks. The sand handling plant consists of: trucks unloading station, sand silo, continuous transportation system.
Flying Ash Settling
The flying ash collected from the ash separators (path II flue-gas-slag preheated by air and economizer) and the flying ash from the electrostatic precipitator are collected in the silo pertaining to the boiler. From the ash collecting silo, the ash is taken over and transported pneumatically to the dry flying ash buffer store.
Discharge of Solid Coke Slag and Gypsum Mix
The petroleum coke slag resulting from petroleum coke combustion as well as the gypsum proceeding from limestone transportation via SO2 addition are collected, taken over from the furnace basis and transported to the collecting silo within boiler limit. From the collecting silo, the dry slag and gypsum mix is taken over with continuous transportation equipment up to the buffer store where from it has to be taken over and conveyed for long term storing.
Services offered:
- solution study
- feasibility study
- approvals documentation
Main technical features:
One steam boiler - fluidized bed combustion 260 t/h, 100 bar, 540 0C running on coke
One steam turbine - condensation type 30MW
Performances/efficiency:
To meet own consumption and to deliver electricity to NPS.
To capitalize combustible by products obtained in refinery, by observing European NOx norms.
Country and location:
Romania / Refinery SC Petrotel-Lukoil SA, Ploiesti, Prahova county
Client:
Petrotel Lukoil, Ploiesti
Start-completion date (commissioning):
2005 - 2007