Vietnam’s first-ever refinery calls for ARTES’ specialists’ applications
Petrovietnam’s new refinery built in Dung Quat, in the Central Quang Ngai region of Vietnam, is the first oil refinery implemented in Vietnam. Planned in January 1998 to cater for domestic refining capability and inaugurated by the Vietnamese Prime Minister on 22 February 2009, the Dung Quat Refinery has a designed capacity of 6.5 million tons of crude oil annually, or 140,000 barrels per day. A further expansion is planned by 2013–2014.
The EPC (Enginering Procurement and Construction) Contractor of the refinery was the Consortium between Technip, JGC, and Técnicas Reunidas, three leading and internationally operating engineering companies. The overall investment was close to US$3 billion.
ARTES Ingegneria (BONO Artes) had the honor of being selected by the Consortium, and in particular by Technip Geoproduction Sdn. Bhd., Kuala Lumpur, as the preferred supplier of two large Condensate Polishing Units. The overall capacity of those plants approaches 700 tons/hour.
Condensate polishing has been employed to purify the return steam condensate in order to meet the quality requirements of high pressure thermal cycle and minimise consumption of make-up water. The Condensate Polishing plant enables recovery of a large amount of steam condensate even in case of a serious risk of contamination.
Both plants feature treatment of three specific types of impurities:
- Particulate matter and in particular corrosion products (oxides of iron, copper and nickel) are removed by means of filtration on specific cartridge filters characterised by high loading capacity and long life-time.
- Furthermore removal of mineral oil, present in the return condensate due to leakage from heat exchangers or process equipment, is successfully performed by means of adsorption processes on activated carbon media filled into pressure-operated filters.
- Eventually the presence of dissolved salts, which arises from leakage of cooling water into the condensing steam or presence of soluble corrosion products, is reduced to negligible figures through Mixed-bed ion exchangers.
In such challenging conditions both plants demonstrated high operating flexibility coupled with a dramatic output water quality. In the Hydrocarbon Refining sector ARTES confirmed once again its role as a reliable partner for extermely specialised water & waste water treatment applications.