CNOOC Daxie Petrochemical Integration Project to go into operation in June

At 9:58 a.m. on June 9, 2023, the inauguration ceremony for the 2×450,000 tons per year polypropylene plants of the Daxie Petrochemical Integration Project was held solemnly at the project site. The 2×450,000 tons/year polypropylene units of the Daxie Petrochemical Integration Project are currently the largest of their kind in China; the product types include homopolymers, random copolymers, and impact-resistant copolymers. Upon completion of the project, Daxie Petrochemical’s polypropylene production capacity will reach 1.2 million tons per year, which will help Daxie Petrochemical strengthen its industrial foundation and develop as well as expand its industrial chain.

From January 21 to 22, the mechanical installation of the first batch of units in the Daxie Petrochemical Integration Project (the refining section) was completed, and it successfully passed the inspection and acceptance by China National Offshore Oil Corporation and its expert team, marking the basic completion of Daxie Petrochemical’s 12 million tons per year refining facility. This acceptance meeting was chaired by the Engineering and Materials Department of the group company, and a panel of 9 experts from fields such as process engineering, equipment, and electrical engineering was invited to form the expert inspection team. A total of 60 people attended the meeting, including representatives from the Engineering Procurement Department of the refining and chemical company, the Chemical Engineering Quality Supervision Station of China National Offshore Oil Corporation, the Daxie Petrochemical Integration Project Team, Sinopec Guangzhou Engineering Co., Ltd. and other construction units, supervision units, as well as various departments of the project team. At the acceptance meeting, the expert group listened to reports from the project owner, design firm, construction contractor, supervision unit, quality inspection agency, and others regarding the completion status of the project, the amount of work actually carried out, the rectification actions taken as part of the \"three inspections and four determinations\" process, and the project supervision efforts. The group also inspected the physical aspects of the installation on site as well as the related engineering documents. Through a comprehensive review, the expert group held thorough discussions on the completion status of the project and provided feedback on its mechanical completion condition. It was determined that the project construction procedures complied with legal and regulatory requirements, and the quality of the physical structure met the relevant standards, specifications, and design requirements; thus, the first batch of units in the refining and petrochemical integration project (the refining section) passed the mechanical completion inspection by the expert group.

In October 2023, the first phase of installation of the regenerator and settler equipment for the 3.2 million tons per year catalytic cracking unit in the Daxie Petrochemical integration project was successfully completed, marking the transition of the catalytic unit at Daxie Petrochemical from the civil engineering phase to the equipment installation phase. The settler and regenerator, collectively referred to as the “two units,” are the core equipment of a catalytic unit. Large size, heavy weight, complex structure, compact layout, and long construction period. “The construction of the “two units” is a key milestone and a challenging aspect in the build-out of a catalytic cracking unit. It is reported that these two units, as the core equipment of catalytic cracking plants, have the largest scale in the country at present. The maximum diameter is 21 meters, the height of the equipment itself is 67 meters; after installation, the height can reach 78 meters. The weight required for its fabrication and lifting is nearly 3,000 tons. It is characterized by a complex structure, compact layout, and a long construction period.