【SeaChuan’s Insights】Jinxī Petrochemical upgrades its rich gas compressors, reducing energy consumption costs by double

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] On August 25, the renovation project to increase the electrification rate of Jinxi Petrochemical’s 1.5 million tons per year coking unit was successfully completed; the core task, namely the replacement of the rich gas compressor, was carried out and the system has been operating stably since then. Since its operation began 3 months ago, this device has helped the company save over 3.56 million yuan in costs, delivering excellent results in terms of reducing energy consumption and improving economic efficiency.   Guided by the \"dual carbon\" goals, Jinxi Petrochemical focuses on optimizing its energy structure, making the electrification of compressors and pumps a key priority in its efforts to reduce carbon emissions. A range of measures, including the installation of power-saving equipment, the phasing out of inefficient and high-energy-consuming motors, and improving the energy efficiency of motors, are taken to minimize the company’s overall electricity consumption.   As a key equipment in the delayed coking unit, the rich gas compressor is responsible for pressurizing the rich gas produced by the coking unit and transporting it to the related facilities; its energy consumption directly affects the overall energy efficiency of the entire coking unit. The steam-driven condensing compressors that have been in use previously have been operating for over 40 years; they suffer from issues such as high energy consumption, low efficiency, and significant safety hazards, which constitute bottlenecks to the green operation of the facility.   Jinxī Petrochemical regards the electrification improvement project as a key breakthrough for enhancing overall energy efficiency. It adopts a strategy of utilizing existing factory facilities along with upgrading core equipment, replacing the original condensing compressors in the coking unit with electric centrifugal compressor units, and simultaneously implementing a high-pressure variable frequency control system to ensure precise regulation. “The newly installed electric centrifugal compressors not only reduce steam consumption but also save on the amount of circulating water required, while also making daily operation simpler. ”Liu Cunliang, the process director of the Fourth Refining Department at Jinxi Petrochemical, said.   The new compressors consume 5.16 kilograms of standard oil less per ton of product produced compared to older compressors. Based on the current volume of operations, this results in annual savings of 6.57 million tons of circulating water and 105,000 tons of steam. The successful replacement and commissioning of the coking rich gas compressor have injected strong new momentum into the enterprise’s green and sustainable development.