As the largest one-time investment in the refining and chemical project of CNPC, the project construction is expected to reach a huge scale of 20 million tons/year of oil refining, 1.2 million tons/year of ethylene, 2.6 million tons/year of aromatics, 600,000 tons/year of ABS, and will support the construction of a power center, storage and transportation, 300,000 tons of crude oil terminal and 100,000 tons of product terminal. At present, the refinery, ethylene, aromatics and ABS units of Guangdong Petrochemical, refining and Chemical Integration Project and ABS project of petrochina have been fully commissioned and tested to achieve stable operation and normal production.

In the face of large scale, complex business, long process and other arduous challenges, excellent partners are essential, in the choice of MAC system suppliers, petrochina Guangdong Petrochemical after many field visits and repeated comparison, and finally choose to achieve strategic cooperation with Zhongcon technology. Xu Li, deputy director of the motor equipment Department of petrochina Guangdong Petrochemical Company, said, “The control system, as the brain and nerve of the plant operation, is more critical for large-scale refining and chemical integration projects. Sinochem has accumulated rich practical experience in large-scale refining and chemical integration projects, and has a good reputation in the industry, which is an important reason for Guangdong Petrochemical to choose cooperation with Sinochem technology.”

Build the core control system localization

Such a large-scale refining and chemical project has extremely strict requirements on the stability and safety of the control system. Up to now, in this project, the control system has reached 170,000 I/O control points, 2,165 cabinets, 1,210 consoles, 277 pairs of controllers, 13,924 I/O cards and 178 sets of servers…… Refresh the petrochemical industry core control system localization of a record, but also witnessed the unique advantages of control technology in the field of control systems.

In addition, the CNPC Guangdong Petrochemical refining and chemical integration project has a total of 46 sets of process units, while supporting the construction of 300,000 tons of crude oil terminals, long-distance pipelines, crude oil transfer storage, sewage treatment and other supporting projects. What is of concern to the industry is that the aromatic device, polypropylene device and styrene device are the largest single set in the world, and the requirements for the safety and reliability of the control system are higher than those of conventional ten-million-ton oil refining projects. Xu Li said that the whole process of Guangdong Petrochemical, refining and chemical integration project is open, and the first condition for operation is that the central control technology control system plays an important guarantee role in it, and escorts the continuous stable, safe and efficient operation of the project.

Before the application of the localized control system, Guangdong Petrochemical had investigated the application of many similar projects such as Zhongtian Hechuang large-scale coal-to-olefin and Ningxia Coal Industry large-scale ethylene of the National Energy Group, and fully understood the application of the control system of the central control technology through various channels. (The Zhongtian Joint Venture project was the largest plant-wide DCS control system application project in China at that time, and for the first time realized the overall application of domestic DCS control system (ECS-700) in the whole process of large-scale modern coal chemical projects, with technical indicators reaching the international advanced level and significant economic and social benefits). From the ECS-700 control system to the new generation of the whole process intelligent operation management and control system (i-OMC), the exploration and growth of the control technology in the field of control systems has never stopped. In the Guangdong Petrochemical refining and chemical integration project, the i-OMC system construction concept of central control technology has opened up the integration of the whole plant’s planning and scheduling, and achieved top-down production collaborative optimization and integrated management and control.