[Ten years of development of chemical equipment] 700-2017 Yueyang built the first domestic 20,000 tons/year SEPS device
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Look at the great development of chemical equipment in the past ten years and praise the prosperity of China in the prosperous world. Replies will be rewarded and discussions are welcome---------------------------------------------- In 2014, the feasibility study report of the SEPS industrialization device project with an annual output of 20,000 tons of Baling Petrochemical was approved. Baling Petrochemical's 20,000 tons/year SEPS industrialized device is Sinopec's independent intellectual property technology and the first in China. Once put into production, it will fill the gap in my country's SEPS products, replace imports and participate in international competition, promote mode transformation, adjust structure, and enhance the core competitiveness of Baling Petrochemical's special lithium polymers (thermoplastic rubber) ； It is also a benefit project of Baling Petrochemical during the “Thirteenth Five-Year Plan” period. In 2015, Baling Petrochemical completed the basic design, land acquisition, safety assessment, and environmental assessment of the SEPS industrial unit with an annual output of 20,000 tons. On March 16, 2016, Baling Petrochemical started construction of a 20,000-ton-per-year SEPS industrial unit, which took more than 17 months and 528 days. On the morning of August 10, 2017, the main unit of Baling Petrochemical's first domestic 20,000 tons/year SEPS industrialization project achieved the CCCC goal through the unremitting efforts of all participating employees.
The full name of Baling Petrochemical is Baling Branch of China Petroleum & Chemical Corporation. As a subsidiary of Sinopec, a large-scale petrochemical complex integrating oil, chemicals, fibers and fertilizers, Baling Petrochemical is currently the largest SBS, epoxy resin, caprolactam and commodity company in China. * * Manufacturing enterprise with a total annual production capacity of 4 million tons. EPS is a high-end environmentally friendly upgraded version of thermoplastic elastic rubber SIS. Its products are widely used in medical, electrical insulation, food packaging, bonding and fixing and other fields. The annual global production and sales volume of SEPS is about 130,000 tons. Before 2017, one company each in the United States and Japan had a monopoly on product supply. In the past two years, Baling Petrochemical has made breakthrough progress in the industrialization of SEPS, and has successively overcome key technical obstacles to the industrial production of this product.
Since 2009, Baling Petrochemical has teamed up with the Beijing Research Institute of Chemical Industry to carry out research on the industrial production of SEPS, and has successively developed three brands of SEPS products, which are used as optical cable grease and transparent elastomer respectively. The pilot product has been tried by customers and has shown good results. The expert group believes that the overall level of this technology has reached internationally advanced levels, and product performance is comparable to similar foreign products. This project technology has applied for 2 invention patents and been authorized. On this basis, Baling Petrochemical and Beijing Research Institute of Chemical Industry jointly developed a complete technology package for SEPS production with an annual output of 20,000 tons in 2012. Its process flow, equipment design and selection, and control scheme are reasonable and feasible, the technology is mature and reliable, and the technical indicators are advanced. It is the first of its kind in China. In December 2013, the “10,000-ton SEPS complete technology development” project was included in Sinopec’s “Ten Dragon” scientific and technological projects plan. ；
In early September 2019, Sinopec Baling Petrochemical's Synthetic Rubber Division completed and put into operation China's first thermoplastic rubber SEPS (hydrogenated styrene/isoprene copolymer) industrial unit with an annual output of 20,000 tons. The first start-up of the polymerization and hydrogenation unit was a complete success.
This marks that Baling Petrochemical has become the third company in the world to use core technology with independent intellectual property rights to industrially produce SEPS. It fills the gap in the research and development and production of SEPS products in my country, breaks the long-term monopoly of American and Japanese companies, and is a milestone in the innovative research and development of thermoplastic rubber complete sets of technologies.
SEPS is a high-end, environmentally friendly "upgraded" product after hydrogenation of the thermoplastic elastic rubber SIS, which is known as "green rubber." It not only retains the excellent application performance of SIS, but also significantly improves the product's ability to resist environmental factors such as heat resistance, light resistance, and heat oxygen resistance. After the device is completed and put into production, it will replace imports and participate in international competition. So far, Baling Petrochemical's annual production capacity of thermoplastic rubber products has expanded to more than 300,000 tons, continuing to rank second in the world and first in Asia.