Abu Dhabi Oil Refining Company (Takreer) has received commercial proposals for contractors vying to install flare gas recovery systems at its Ruwais and Abu Dhabi refineries in the UAE.

Switzerland-based ABB, French group Litwin and India’s Punj Lloyd are among the companies submitting commercial engineering, procurement and construction (EPC) bids on the estimated $150m project.

The deadline for commercial bids was suspended several times from an original cut-off date of 31 May, with technical proposals submitted in mid-May. The contract is expected to be awarded in September.

The project is designed to reduce the volume of gas flared in the Abu Dhabi, as well as reducing emissions of carbon dioxide and sulphur dioxide, while increasing domestic natural gas supplies.

Under the scheme, gas which was previously burned off as waste from the refineries’ hydroskimmer and hydrocracker units will be collected and used as fuel.

The scope of the project includes: vapour header; knockout vessel; liquid seal vessel; liquid ring compressor and motor; shell and tube heat exchanger; evaporative cooler; operating liquid cooler; recycle control valve; three-phase separator; and flare stack.

The project’s operator, Takreer, is a subsidiary of the state-owned Abu Dhabi National Oil Company (Adnoc). The Ruwais and Abu Dhabi refineries have respective nameplate capacities of 400,000 barrels a day (b/d) and 90,000 b/d.