The Hengyi (Brunei) PMB Petrochemical Project is a ten-million-ton integrated refining and chemical joint venture developed by China’s Hengyi Group and the Government of Brunei. With a total investment of 3.45 billion US dollars, it features an annual crude oil processing capacity of 8 million tons, comprising 14 main production units and supporting storage & transportation facilities with a capacity of 22 million tons.
Main Works Include:
8 mt/a Atmospheric & Vacuum Distillation Combined Unit
The world’s largest single-train aromatic hydrocarbon unit
Super-large PSA hydrogen purification unit with a capacity of 223,000 standard cubic meters per hour (total hydrogen output exceeding 600,000 standard cubic meters per hour)
Sulfur Recovery Combined Unit (adopting the Claus process)
On January 5, 2026, Hengyi Petrochemical announced the full launch of the Phase II construction of the Brunei Refining & Chemical Project, targeting completion by the end of 2028. The optimized designed capacity of the Phase II project is adjusted to 12 million tons per year, mainly producing diesel oil, PX, benzene, polypropylene, and other high-value-added refined oil and chemical products. Upon completion of Phase II, the total annual processing capacity of Brunei’s refineries will reach 20 million tons.