Parsons E&C Awarded Three Gas Treating and Sulfur Recovery Projects.

Energy Editors/Business Editors

HOUSTON--(BUSINESS WIRE)--Oct. 6, 2003

Parsons E&C, a world leader in gas treating and sulfur recovery technologies, has been working successfully with ExxonMobil Research and Engineering (EMRE) using their Flexsorb(R) technology for nearly 10 years. More than 50 plants have been successfully installed using Flexsorb(R) technology. Recently, Parsons E&C was awarded contracts for three high-profile projects using our licensed technologies in widely differing applications as described below.

GASCO awarded Parsons E&C the process license services for a 30 ton per day (TPD) sulfur recovery unit for the third NGL train at GASCO's facility at Ruwais in the United Arab Emirates. Parsons E&C brings together an exclusive combination of technologies, enabling the processing of the lean acid gas streams to meet the tight guarantee requirements at the lowest capital and operating cost. The technologies used include:

-- Flexsorb(R) SE Plus Acid Gas Enrichment (AGE) - EMRE

-- Claus Technology - Parsons E&C

-- BSR Tail Gas Treating Unit (TGTU) Technology - Parsons E&C

-- Flexsorb(R) SE Plus (TGTU) Technology - EMRE

-- D'GAASS Technology Liquid Sulfur Degassing - GAA 

The process scheme selected to meet the 200 mg/Nm3 SO2 emission guarantee (equivalent to greater than 99.9% sulfur recovery efficiency) is an acid gas enrichment unit, followed by Claus and an amine based tail gas treating unit, with liquid sulfur degassing by the D'GAASS process. The amine used in the AGE and TGTU is Flexsorb(R) SE Plus. In the AGE it enriches the lean acid gas with maximum of H2S selectivity resulting in relatively rich acid gases for conventional processing in the Claus and TGTU.

EnCana (U.K.) Ltd, on behalf of its Buzzard co-venturers Intrepid Energy, BG Group and Edinburgh Oil and Gas, awarded Parsons E&C the process license and basic engineering design package for an acid gas removal unit (AGR). The AGR will treat 76 MMSCFD of associated gas and lift gas from the Buzzard Field; an offshore development located 100km North East of Aberdeen on the United Kingdom Continental Shelf.

In the heart of the process, Parsons E&C is using its sub-licensing agreement with EMRE for Flexsorb(R) Hybrid SE Technology. This technology requires only a single gas treating process step to remove H2S, Mercaptans and CO2 down to the unit treated gas specification and thus reducing the project processing complexity and overall capital cost. This is augmented by the Flexsorb(R) solvent's high capacity for absorption of acid gases to reduce solvent circulation and related utility requirements. The sweet gas produced will feed downstream dehydration and hydrocarbon dew-point units before export.

CNPC-AMG (China National Petroleum Corporation International - Aktobe Petroleum Joint Stock Company) awarded Parsons E&C a contract to provide proprietary technologies and basic engineering design package for an acid gas removal unit (including Mercaptan removal), sulfur recovery unit, tail gas clean-up unit and LPG H2S & Mercaptans removal unit for a new gas purification plant in the Zhanazhol oil field of Aktobe in Kazakhstan.

Parsons E&C will provide engineering services to develop basic engineering design packages for the following licenses:

-- Flexsorb(R) Hybrid SE Acid Gas Removal - EMRE

-- Claus Technology - Parsons E&C

-- BSR TGTU Technology - Parsons E&C

-- Flexsorb(R) SE (TGTU) Technology - EMRE

-- D'GAASS Technology Sulfur Degassing - GAA

CNPC-AMG are building the new purification plant for treating associated gas and cap gas produced in the oil field to meet the sales gas Qualification Standard OCT51.40-93. The facility will be a critical part of the Natural Gas Treatment & Utilisation Project in the Zhanazhol oil field. It will be designed to assure a lifetime of at least 20 years and meet local environmental protection requirements.

Parsons E&C provides design, engineering, procurement, construction, and project management services to a global roster of clients in the oil & gas, refining, chemical & petrochemical, and power industries.