Successful First-Time Startup of 1.2 MTPA Ethylene Unit for CNPC Guangxi Upgrade
Recently, the 1.2 million tons/year ethylene unit of the PetroChina Guangxi Petrochemical Refining and Chemical Integration Transformation and Upgrading Project successfully started up on its first attempt! In this project, Shenyang Blower Works Group provided all three core compressor units, including the cracked gas compressor unit, the electric-driven ethylene compressor unit, and the propylene compressor unit.
Among them, the electric-drive ethylene compressor unit, as the world's first set of frequency converters to achieve hot standby switching for electric-drive ethylene units, fully demonstrates Shenyang Blower Works' strong R&D capabilities, lays a solid foundation for the electrification of large-scale ethylene plants, and establishes a clear green transformation path for the entire industry through reliable operation. This drives the entire industry towards electrification and low-carbonization, significantly enhancing the voice and core competitiveness of domestically produced high-end equipment in the international market.
The PetroChina Guangxi Petrochemical Refining and Chemical Integration Transformation and Upgrading Project is a key project of PetroChina's "14th Five-Year Plan" and a crucial project for implementing the national "Belt and Road" initiative, building the Western Land-Sea New Corridor, and participating in RCEP international competition. In this project, the ethylene compressor has been changed from a high-pressure steam-driven turbine operating mode to an electric motor-driven system, accelerating the green transformation of development methods and actively promoting carbon peaking and carbon neutrality.
After the project is put into operation, it will further increase the efforts to "reduce oil and increase chemicals," significantly enhance the cluster of specialized, high-end, and differentiated products and market competitiveness, and is of great significance for improving the local industrial structure, promoting regional economic development, and transforming and upgrading PetroChina's refining and chemical business.
The ethylene unit is a core component of PetroChina's Guangxi Petrochemical Refining and Chemical Integration Transformation and Upgrading Project, and the customer was particularly concerned about the unit's comprehensive capabilities in terms of safety and reliability. Based on on-site research and experience summaries from several similar large-scale projects already in operation, and after in-depth analysis of the advantages and disadvantages of electric drive versus steam drive in terms of energy efficiency and carbon emission reduction, the customer ultimately made the crucial decision to adopt the electric drive unit.
Faced with a challenge unprecedented both domestically and internationally, the Shenyang Blower Works (Shenyang Blower) R&D team precisely considered the natural environment of the project site (such as altitude, temperature, and humidity) as well as key boundary conditions such as the power distribution system and load data. They conducted in-depth technical research and solution comparison, creatively adopting a fully redundant configuration. This achieved comprehensive redundancy in the frequency converter, PLC, water cooling system, and excitation system, effectively ensuring that the electric drive system could meet the requirement of continuous operation for five years without shutdown, completely resolving the customer's core concern regarding the reliability of the electric drive system.
This success not only represents a breakthrough in the production of the first set of equipment, but also fully demonstrates that Shenyang Blower Works Group (Shenyang Blower) has mastered the comprehensive solution capabilities for the entire chain of three units for a million-ton-level ethylene plant, from process design and core equipment development to electrification and intelligent drive system integration. Shenyang Blower deeply understands the personalized needs of its customers and, relying on its powerful R&D platform and rich engineering experience, provides customers with precise, reliable, and one-stop services from solution design and equipment development to installation and commissioning.
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