[Haichuan Chemical News] The first large-scale equipment for Sinochem Quanzhou Ethylene Project, the No. 1 propylene tower, has been successfully delivered

Project Name: Sinochem Quanzhou 1 million tons/year Ethylene and Refining Expansion Project. Project location: Quanhui Petrochemical Industrial Zone, Hui’an County, Quanzhou City, Fujian Province (Dongqiao Town). Construction scale: The project builds upon an existing oil refining facility with an annual capacity of 12 million tons; it involves the construction of 13 new oil refining and chemical processing units, as well as the expansion and renovation of existing units, along with associated utility systems and storage and transportation facilities. The total land area required is approximately 6,541 mu. Construction objectives: Building on a crude oil processing capacity of 12 million tons per year, this project aims to increase that capacity to 15 million tons per year through upgrades and expansions, while also establishing a new ethylene production facility with an annual capacity of 1 million tons. Total investment in construction: approximately 32.5 billion yuan.

13 sets of process units and their scale: ▲ 11 units in the chemical sector, including an ethylene cracking unit with a capacity of 1 million tons per year, an EVA unit with a capacity of 100,000 tons per year, an HDPE unit with a capacity of 400,000 tons per year, EO/EG units with capacities of 200,000/500,000 tons per year, PO/SM units with capacities of 200,000/450,000 tons per year, a PP unit with a capacity of 350,000 tons per year, a butadiene extraction unit with a capacity of 120,000 tons per year, MTBE/butene-1 units with capacities of 100,000/30,000 tons per year, a pyrolysis gasoline hydrogenation unit with a capacity of 500,000 tons per year, an aromatic extraction unit with a capacity of 350,000 tons per year, and a p-xylene unit with a capacity of 800,000 tons per year； ▲ There are 2 sets of refining units, including a newly built atmospheric distillation unit with a capacity of 3 million tons per year and a refinery dry gas pre-purification unit with a capacity of 450,000 tons per year.

Project composition: The project consists of refinery renovation and expansion, ethylene and aromatics projects, as well as utility and auxiliary systems. The main construction contents and scale are as follows. ▲ The refineries’ expansion and renovation include: expanding the atmospheric and vacuum distillation unit from 12 million tons per year to 15 million tons per year, and expanding the light hydrocarbons recovery unit from 2.3 million tons per year to 3 million tons per year. 　　 ▲ The ethylene and aromatics section includes: new facilities for 1 million tons per year of ethylene cracking, 800,000 tons per year of p-xylene production, as well as 200,000 tons per year of ethylene-vinyl acetate copolymer production; 400,000 tons per year of high-density polyethylene production; 200,000/500,000 tons per year of ethylene oxide/ethylene glycol production; 260,000 tons per year of acrylonitrile production; 100,000 tons per year of methyl methacrylate production; 200,000 tons per year of waste acid regeneration; 120,000 tons per year of 2-propylheptanol production; 120,000 tons per year of butadiene extraction; 10,000/30,000 tons per year of methyl tert-butyl ether/butene-1 production; 500,000 tons per year of cracked gasoline hydrogenation; 300,000 tons per year of aromatic extraction; 140,000 cubic meters per year of hydrogen production from coal; 1 million tons per year of diesel hydroprocessing; and 540,000 tons per year of refinery dry gas pre-purification. Except for the ethylene cracking and p-xylene units, the remaining chemical plants can be appropriately optimized and adjusted as needed, while ensuring safety and environmental protection. ▲ The utilities section includes facilities such as water supply, heating, storage and transportation, flares, and pollution control systems required for the plant, but does not include projects outside the plant (the external Maodai wharf and the pipelines from the wharf to the plant area). Among these measures, a new standby gas boiler with a capacity of 300 tons per hour is to be installed at the power station; the fuel for the existing two CFB boilers with a capacity of 310 tons per hour will be changed from petroleum coke to coal, and one of the steam turbines will be converted into a back-pressure unit. Renovate and expand the train loading and unloading stations in the refinery area.

At 10 a.m. on November 1, the 200,000/500,000 tons per year ethylene oxide/ethylene glycol plant of Sinochem Quanzhou was officially put into operation. It is reported that the Sinochem Quanzhou 1 million tons per year ethylene and refining expansion project is not only a key project under the 13th Five-Year Plan but also a key project in Fujian Province. The Sinochem Quanzhou 200,000/500,000 tons per year ethylene oxide/ethylene glycol plant, constructed by the Quanzhou project, is an important facility of this ethylene project. The project is scheduled to be completed on December 30, 2019.

Since mid-October, the construction of the secondary pipeline network for Sinochem Quanzhou’s 1 million tons per year ethylene project, undertaken by SINOPEC Refining & Chemical Engineering No. 10 Construction Company, has entered its final phase, with comprehensive activities related to the three inspections and four determinations being carried out. Sinochem Quanzhou’s 1 million tons per year ethylene plant began operations on July 6, and at the same time the plant is facing a peak period for pile driving work. The project team for the Quanzhou Refining and Chemical Project of Shijian Sinochem raised its perspective, considered the overall situation of the project as a whole, and made every effort to accommodate the needs related to pile foundations, while trying to avoid any delays in work for the staff. For the construction of the secondary pipeline network, the project team developed a specialized plan, adhering to a construction strategy that involves centralized prefabrication of pipes, their simultaneous installation, and rapid backfilling, in order to minimize cross-interfering operations. It is understood that the secondary pipeline network of the ethylene plant spans a total length of 9,485 meters, and welding is required on pipes with a diameter of 30,246 inches; the largest pipe diameter is 2 meters, while the elevation of the pipe bottoms is nearly 5 meters. The entire construction site is located in an intertidal marshland area that was created through artificial land reclamation. This results in various challenges such as loose soil, poor geological conditions, and high groundwater levels, making construction organization and safety management very difficult. To this end, the project team organized things scientifically and planned meticulously, overcoming challenges such as concurrent construction activities, high temperatures, heavy rainfall, and typhoons. The main construction of the secondary underground pipeline network was essentially completed by the end of September, and on October 15th, the final stages of work were carried out, allowing the project to be completed safely, with high quality, and in a timely manner, thus meeting the overall schedule goals. During the construction of the secondary underground ethylene pipeline network, the project team consistently pursued the goals of \"striving for excellence, expanding the market, achieving profitability, and cultivating talent.\" With a focus on ensuring construction safety and quality, promoting civilized construction practices, and meeting all scheduled deadlines, the team achieved success through management innovation, optimized construction organization, thorough planning, and meticulous management, thereby winning the trust of both the client and the general contractor in a short period of time.

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