[Industry Focus]：Shenghong Sirbang Petrochemical's fourth 260000 tons/year acrylonitrile plant was put into operation, with a total production capacity of 1.04 million tons/year.

Recently, the fourth 260000-ton/year acrylonitrile plant of Shenghong Sirbang Petrochemical in Lianyungang Petrochemical Industry Base in Xuwei New District was put into operation, producing superior acrylonitrile. Shenghong's acrylonitrile production capacity rose to 1.04 million tons per year, which marked Lianyungang petrochemical industry base, becoming the world's largest acrylonitrile production base.

It is understood that acrylonitrile is an important raw material for the three major synthetic materials (plastics, synthetic rubber, synthetic fibers). The upstream raw materials are propylene and liquid ammonia, and the downstream are mainly ABS (acrylonitrile-butadiene-styrene) resin and acrylic., Acrylamide, carbon fiber, etc., are widely used in aerospace, wind power generation, automobiles, machinery, electronics and other fields. But this kind of multi-purpose, large quantity and wide range of basic materials, China once needed a large number of imports. From 2011 to 2013, China's annual imports of acrylonitrile exceeded 500000 tons, and the import dependence exceeded 30%.

In order to fill this gap, in 2013, Sheng Hong started the construction of the first acrylonitrile plant with an annual output of 260000 tons in Lianyungang Petrochemical Industry Base, which was successfully started at one time in 2015. The first 260000 tons/year plant of private enterprises also set a world record in the acrylonitrile industry -949 consecutive days of operation. After years of cultivation, at present, the base has built four sets of equipment. "At that time, we were building an alcohol-based polygeneration project. When planning the extension of the methanol-to-olefin industry chain, we focused on the national policy guidance, analyzed the market development trend, and finally aimed at acrylonitrile. The goal was to meet the domestic market demand and promote import substitution." The whole process has experienced the development process of four sets of acrylonitrile units in Shenghong, and Song Guojun, deputy general manager of Shenghong Sirbang Petrochemical, is still fresh in his memory.

Since 2016, the release of domestic production capacity, including Shenghong, China's acrylonitrile imports have been greatly reduced, and the import dependence has also been significantly reduced. In 2016 and 2017, China's acrylonitrile imports were 306100 tons and 270800 tons respectively, and the import dependence was 13.7 and 12% respectively. While promoting import substitution, with Sheng Hong as the representative, Chinese acrylonitrile enterprises have also accelerated the pace of participating in the global market and filling the gap in overseas markets.

"After 2016, the downstream application of acrylonitrile has developed rapidly and the domestic market demand is strong." Song Guojun introduced that in 2019, Shenghong's second 260000-ton/year acrylonitrile plant was put into operation, leading the industry in production capacity; in 2021, Shenghong's third 260000-ton/year acrylonitrile plant was put into operation, and its production capacity rose to 780000 tons/year. Won China's first place.

More importantly, the construction of the base has completed the localization of the whole carbon fiber industry chain, and realized the localization and toughness connection of the carbon fiber industry chain supply chain. In May 2023, Zhongfu Shenying and Shenghong Petrochemical signed a strategic agreement on raw materials cooperation, and the two sides will cooperate in all aspects of acrylonitrile supply. Chen Qiufei, the relevant person in charge of Zhongfu Condor, introduced, "In fact, Zhongfu Condor is also the first user of Shenghong acrylonitrile products, Shenghong's first set of 260000 tons/year acrylonitrile plant put into production, Zhongfu Condor began to test Shenghong products. Today, a carbon fiber production chain from Lianyungang is producing a linkage effect here."

in recent years, Shenghong Petrochemical has continued to optimize the raw material supply structure to achieve multiple resource guarantees. Bai Wei, president of Shenghong Petrochemical Industry Group, pointed out that Shenghong Petrochemical has built a "1 + N" innovative development model of diversified industrial chains such as core raw material platform + new energy and new materials, and created a core raw material platform with "oil, coal and gas" at the same time. Acrylonitrile, MMA (methyl methacrylate) photovoltaic grade EVA (ethylene-vinyl acetate copolymer), ultra-high molecular weight polyethylene and other production, to provide the optimal combination of raw material sources. As for acrylonitrile, Bai Wei said that the simultaneous development of three propylene raw materials enables Shenghong Petrochemical to flexibly adjust the production capacity of the plant according to the market situation, so as to achieve complementary advantages, reduce costs and increase efficiency.

Oil head: In December 2022, Shenghong Petrochemical 16 million tons/year refining integration project was fully put into operation. After nearly a year of operation, the ethylene, propylene, propane, vinyl acetate, etc. produced by the largest single-process refining project in the country have effectively met the raw material needs of Shenghong acrylonitrile and other products.

Coal head: Shenghong Sirbang Petrochemical has the world's largest monomer scale of 2.4 million tons/year alcohol-based polygeneration unit, methanol as raw material, through the MTO (methanol to olefin) process, the production of ethylene, propylene.

Gas head: In April 2022, the 700000-ton/year PDH (propane dehydrogenation) plant of Shenghong Sirbang Petrochemical Company was successfully started and successfully produced superior propylene products. Combined with the MTO unit, the overall propylene production capacity of Srbon reaches 1.2 million tons/year, which can fully meet the raw material demand of 4 sets of 260000 tons/year acrylonitrile units.

In Lianyungang Shenghong Petrochemical Industrial Park, the efficient coordination and matching of raw materials and processes provide strong support for Shenghong to form a significant scale advantage and cost advantage in the field of acrylonitrile.

With the completion of the million-ton acrylonitrile base, with Shenghong Petrochemical and Zhongfu Eagle as the axis, including a number of downstream application enterprises, a carbon fiber industry chain from raw materials, raw silk, carbon wire, composite materials to final products has been formed, and a world-class new material base is rising in Lianyungang.