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Adnoc Gas, the natural gas processing business of Abu Dhabi National Oil Company (Adnoc Group), has received interest from contractors in participating in a front-end engineering and design (feed) to engineering, procurement and construction (EPC) competition for a project to install a fifth natural gas liquids (NGL) fractionation train at its Ruwais gas processing facility in Abu Dhabi.

Adnoc Gas intends to add a fifth NGL fractionation train to its Ruwais complex, which will have an output capacity of 22,000 tonnes a day (t/d) or about 8 million tonnes a year.

Adnoc Gas issued the expression of interest (EoI) document for the Ruwais NGL Train 5 project on 28 February, according to sources. Contractors submitted their response to the EoI document by the deadline of 11 March.

The feed-to-EPC competition model involves the project operator selecting contractors to execute the feed work on the project. The operator will select the contractor with the most competitive feed proposal to execute EPC works on the project, while also compensating the other contestants for their work.

The Ruwais NGL Train 5 will consist of the following units:

• NGL fractionation plant with a capacity of 22,000 t/d, including NGL fractionation facilities, downstream treatment units, sulphur recovery units, products storage, loading facilities and associated utilities, flares and interconnection pipelines with existing facilities
• Two propane liquefied petroleum gas storage tanks and one paraffinic naphtha storage tank
• Buildings – a central control building, outstations, substations and plant amenities
• Electrical power connections. Power is to be sourced from the nearby Transco substation via a direct underground cable to the plot location

Adnoc Gas intends to issue the main tender for the project’s feed-to-EPC competition later in March. It plans to select contractors for the feed contest in May and expects to award the main contract in February next year.

Adnoc Gas business

Adnoc Group announced the creation of Adnoc Gas through the merger of its subsidiaries Adnoc Gas Processing and Adnoc LNG in November 2022. Adnoc Gas began operating as a commercial entity from 1 January 2023.

The consolidation of Adnoc’s gas processing and liquefied natural gas (LNG) operations into Adnoc Gas has created one of the world’s largest gas-processing entities, with a processing capacity of about 10 billion standard cubic feet of gas a day across eight onshore and offshore sites, which include its Asab, Bab, Bu Hasa, Habshan and Ruwais plants.

The company also owns a 3,250-kilometre pipeline network across the UAE.

In December 2021, MEED reported that the erstwhile Adnoc Gas Processing had awarded Indian contractor Larsen & Toubro Hydrocarbon Engineering the main contract for a project to enhance the capacity of its NGL trains 1-4 at the Ruwais complex.

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