Sinopec Hunan Petrochemical Co., Ltd. (中石化湖南石油化工有限公司), commonly known as Hunan Petrochemical, is a major state-controlled subsidiary of China Petrochemical Corporation (Sinopec). Formed in 2020 through the merger of Baling Petrochemical and Changling Refining & Chemical—both originally approved by Premier Zhou Enlai in the late 1960s—it officially integrated operations in 2024. Headquartered in Yunxi District, Yueyang City, Hunan Province, the company employs around 12,000 people.
It operates a large-scale refining and petrochemical complex with a primary crude oil processing capacity of 15 million tons per year, making it Hunan Province's largest supplier of finished oils and chemical materials. Key product chains include caprolactam (world's largest base at 1 million tons/year capacity), thermoplastic elastomers (up to 820,000 tons/year), epoxy resins (320,000 tons/year), propylene oxide, coal chemicals, and over 100 other petrochemicals, chemical fibers, and fertilizers. The company also provides energy supply, industrial gases, electricity, heat, and environmental services.
Recognized for advanced technologies in caprolactam, elastomers, epoxy resins, and propylene oxide—with numerous national awards and patents—Hunan Petrochemical focuses on high-end chemical materials and sustainable development in the refining-chemical integration sector.
Also known as 湖南石化, 巴陵石化, and 长岭炼化.
New cyclohexanone route via cyclohexene esterification–hydrogenation: >99.95% single‑pass conversion, >8× equilibrium, −14% activation energy; waste −70%, CO₂ −38%; first commercial 2×200k t/yr unit
Company held an alliance exchange; emphasizes employee innovation studios - issued guidance, runs reviews; has 31 national and 182 group-level studios and will transfer innovations into production.
