【Ten Years of Rapid Development in Chemical Equipment】From 1957 to 2024, SHENGU’s recycle gas compressors have played a key role in supporting numerous large-scale vinyl acetate projects

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2024: A year of blooming flowers and joy – Happy Forum **********************【Ten Years of Development in Chemical Processing Equipment】Ongoing updates and summaries available; feel free to join the discussions at https://bbs.hcbbs.com/thread-3576046-1-1.html (Source: Haichuan Chemical Forum Website) ***************** Currently, China has the largest production capacity for vinyl acetate in the world**, and it is also the only country that produces vinyl acetate using multiple manufacturing processes. There are three processes for vinyl acetate production in China: the calcium carbide method, the ethylene method, and the natural gas method; new vinyl acetate projects mostly use the ethylene method. The recycle gas compressor is one of the key equipment in vinyl acetate production plants. Due to the low one-pass conversion rate in the process of synthesizing vinyl acetate via the vapor-phase synthesis of ethylene, it is necessary to use a recycle gas compressor to increase the pressure of the unreacted ethylene and other gases before they can be reused. The operating efficiency of this compressor has a significant impact on the energy consumption of the entire plant, while its performance stability is directly related to the operational efficiency of the plant and the quality of the product. In response to the specific requirements of this equipment, SHENGU Group conducted in-depth technical research and customized design to ensure the efficient, stable, and safe operation of the unit. In terms of pneumatic design, a high-efficiency three-dimensional impeller is used to improve the overall efficiency of the compressor and reduce the total energy consumption of the system. Shenmu Group has been deeply involved in the polyolefin sector for nearly two decades, achieving one breakthrough after another. Recently, more good news has come: the Shenmu recirculating gas compressors have successfully helped ensure the stable, efficient operation of several large-scale vinyl acetate production projects. These include the 300,000 tons per year vinyl acetate production unit as part of the second phase of Zhejiang Petrochemical Co., Ltd.’s integrated refining and chemical processing project, as well as the 90,000 tons per year vinyl acetate production unit at Lianhong (Shandong) Chemical Co., Ltd. Shenmu provides customers with mature solution sets for cycle gas compression units used in vinyl acetate production facilities with an annual output of 90,000 tons to 300,000 tons, thereby contributing to the high-quality development of the petrochemical industry. Recently, the recycle gas compressor for Lianhong (Shandong) Chemical Co., Ltd.’s 90,000 tons per year vinyl acetate production facility was successfully commissioned after passing the acceptance tests, with SHENGU providing this compressor. The 90,000 tons per year vinyl acetate plant utilizes Sinopec’s vinyl acetate technology; this plant is the first industrial installation to adopt this process. This technology was developed based on the high-space velocity catalysts created by the Sinopec Shanghai Research Institute of Petrochemical Technology, resulting in a technology with independent intellectual property rights. It features excellent catalyst activity, a long catalyst lifespan, high reaction stability, fully domestic core process equipment, energy and material consumption at international first-class levels, as well as high safety performance. Once put into operation, this project will further enhance Lianhong (Shandong) Chemical Co., Ltd.’s industrial presence in the field of new energy materials, reduce the cost of EVA products, and boost the company’s overall competitiveness and profitability.