Entities in Saudi Aramco ’s Long-Term Agreement (LTA) pool of onshore contractors have submitted bids for two key desulphurisation projects at the Riyadh and Ras Tanura refineries.

Aramco’s objective for the two projects is to meet Saudi Arabia’s environmental guidelines for sulphur dioxide emissions from industrial facilities.

The engineering, procurement and construction (EPC) works on the two projects could be worth up to $500m, a source previously told MEED.

Onshore Lta contractors submitted bids for both projects on 30 December.

The previous bid submission deadlines for the projects were 30 November and 30 September.

Aramco issued the tenders for both projects in January last year, as MEED reported.

The broad scope of work on both projects is to modify existing sulphur recovery units (SRUs) and install tail gas treatment units (TGTUs) to increase the sulphur dioxide recovery at the two refineries from 96%-97% to 99.95%.

The TGTUs will remove the remaining sulphur dioxide in operations after SRU treatment, preventing its release into the atmosphere.

The value of the Riyadh Refinery EPC works is estimated to be $200m.

The EPC contract value of the Ras Tanura refinery works is estimated to be $300m.

MEED first reported on the Ras Tanura refinery desulphurisation project in July 2020. Contractors had completed the submission of prequalification documents for the project at the time.

The main scope of work on the Ras Tanura project covers modifying three of the SRUs – J-72, J-87 and PLT-048. The project also calls for installing a TGTU and a sulphur degassing unit, along with building other utilities and associated facilities.

The front-end engineering and design (feed) work on both the Riyadh and Ras Tanura refinery projects has been done by Jacobs-ZATE, an entity in Aramco’s General Engineering Services plus (GES+) pool.

Aramco has contracted US energy industry consultant Fluor Corporation to deploy its licensed technologies for the projects.

Aramco’s onshore LTA pool consists of the following contracting entities:

  • Nasser Saeed al-Hajri & Contracting (Saudi Arabia) / Samsung EPC Company (an affiliate of South Korea’s Samsung Engineering)
  • Daelim Saudi Arabia Company (affiliate of South Korea’s Daelim Corporation)
  • Engineering for the Petroleum & Process Industries (affiliate of Egypt’s Enppi)
  • GS Construction Arabia Company (affiliate of South Korea’s GS Engineering & Construction)
  • Snamprogetti Engineering & Contracting Company (affiliate of Italy’s Saipem)
  • JGC Gulf Engineering Company (affiliate of Japan’s JGC Corporation)
  • Technip Italy  (affiliate of France’s TechnipFMC)
  • Hyundai Engineering & Construction Company (affiliate of South Korea’s Hyundai Engineering & Construction)
  • Técnicas Reunidas (Spain)

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