To break the PTA foreign monopoly break through the difficulties of separation of carbon 5 Shanghai Petrochemical's 219 patents increase efficiency by nearly 1 billion yuan

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As the "Tenth Five-Year Plan" comes to an end, Shanghai Petrochemical Co., Ltd. has released a comprehensive overview of its technological innovation achievements over the past five years. The company has filed a total of 219 invention patents, marking significant progress in breaking foreign technical monopolies and solving domestic challenges. These innovations have not only disrupted the control of international PTA (purified terephthalic acid) plants but also addressed key issues in the utilization of carbon 5, a by-product from ethylene production. Shanghai Petrochemical has pioneered the development of a fine chemical industrial chain in China, contributing to cost reductions and efficiency improvements that have saved enterprises over 200 million yuan. One of the most notable breakthroughs is the independent development of complete PTA equipment with an annual production capacity of 800,000 tons. This achievement broke the long-standing monopoly held by foreign companies. According to company officials, this technology includes 15 specialized techniques and three invention patents, saving the company approximately 330 million yuan in patent licensing and equipment costs. Carbon 5, which is generated at a rate of one ton for every ten tons of ethylene produced, has long been considered a problematic by-product due to its difficult refining process. Known in the industry as the "sleeping industry," its comprehensive utilization rate nationwide remains below 20%. However, Shanghai Petrochemical invested over 100 million yuan in R&D to develop efficient separation and utilization methods for carbon 5. Today, the company processes 60,000 tons of carbon 5 annually, with 85% being sold as chemical products. It has successfully developed five types of high-tech fine chemicals, protected by 30 patents, covering areas such as rubber, spices, pharmaceuticals, printing, pesticides, solvents, and eco-friendly fuels. These products account for 20% of the company’s total sales revenue through exports. Previously, intermediate products from oil cracking were underutilized, resulting in a crude oil utilization rate of around 70% domestically. Through technological advancements, Shanghai Petrochemical has achieved integrated support for refining and chemical production. As a result, the crude oil utilization rate has steadily increased, reaching 95% in terms of marketable commodities, with only 4% used as internal fuel. The processing loss has been reduced to just 1%, placing it at the top of the petrochemical industry in China. In addition to these achievements, the company has made significant progress in other areas, including the development of palladium-carbon catalysts with an extended service life from 12 to 40 months, and the use of petroleum coke for power generation after on-line desulfurization treatment. During the "Tenth Five-Year Plan" period, the 219 invention patents contributed nearly 1 billion yuan in added value to Shanghai Petrochemical, highlighting the company's growing technological strength and competitive edge in the global market.

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