【Ten Years of Rapid Development in Chemical Engineering Equipment】Major breakthroughs have been achieved in the domestic production of methane exhaust expansion and recompression units from 2012 to 2026

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This post was last edited by HaiChuanLaoYu on 2026-2-12 at 14:54. Let’s give praise and support to the achievements made in China’s chemical engineering technology and equipment; your participation in discussions is the greatest encouragement. **********************【Ten Years of Great Progress in Chemical Engineering Equipment】A continuously updated summary thread – feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html *****************On January 29th, significant progress was made in the localization of the core mechanical equipment for million-ton-scale ethylene plants – namely, the methane off-gas expansion and re-compression units – with the involvement of the 711 Institute of CSSC. On that day, the unit successfully passed the factory acceptance test, marking China’s successful break of foreign long-term technological monopolies in this field and providing critical equipment support for the upgrading of the petrochemical industry. The methane expansion recompressor is a key equipment in ethylene plants with production capacities of millions of tons. It involves complex technology and high requirements; previously, it had to be imported, which led to issues such as high purchase costs, long delivery times, and limited after-sales support. This has been one of the bottlenecks hindering the independent and sustainable development of China’s ethylene industry. This domestication project is based on Sinopec’s plan for the domestic development of major equipment, and is carried out jointly by Sinopec Engineering Construction Co., Ltd., Maoming Petrochemical, and Institute 711. The successful development of this unit represents an important achievement in independent innovation in China’s energy equipment sector. It not only fills the technical gaps in related fields within the country, but also contributes to improving the overall energy efficiency of ethylene production facilities and facilitating their transition toward a greener, lower-carbon model. It holds significant strategic importance for establishing a modern energy industry system that is self-sufficient, secure, and efficient.