The plant has a current production rate of 1 billion cubic feet per day.
ADNOC said it will work with Occidental Petroleum on the expansion of the $10 billion facility, in the hopes of meeting the rising demand for gas in the United Arab Emirates.
"We look forward to working on the next phase to optimize the plant’s expansion," Vicki Hollub, president and CEO of Occidental Petroleum, said. "Demand for domestic gas is rising, and processing additional sour gas from new and existing reservoirs makes sound business sense."
The plan to expand the Al Hosn plant is part of ADNOC's "2030 Strategy."
"A key element of our 2030 strategy is to ensure we produce sufficient gas to meet our steadily increasing requirement for gas, and match rising demand from our international customers," ADNOC Group CEO Sultan Al Jaber said. "Sour gas will play an important role in ensuring we deliver on those commitments."
Sulfur is a byproduct of the sour gas production process, and the expansion is expected to make ADNOC one of the largest sulfur producers in the world. Every day, the Al Hosn facility produces 9,000 tons of pure granulated sulfur, 33,000 barrels of petroleum condensates, 4,400 tons of natural gas liquids and 500 million cubic feet of network gas.