en.Wedoany.com Reported - On July 6, production and operation data from the ethylene plant showed that in June, the 1.2 million ton/year ethylene unit achieved new all-time highs in both output and energy consumption indicators, producing 92,400 tons of ethylene, a month-on-month increase of 22.74%; the unit's comprehensive energy consumption dropped to 538.08 kg of standard oil per ton, outperforming the industry benchmark of 540 kg of standard oil per ton, leading the performance level among similar units in China.
As the core unit of the company's chemical production, the energy consumption control, high yield, and stable production of the 1.2 million ton/year ethylene unit are key to the company's quality and efficiency improvement. The cracking furnace is the core energy-consuming equipment of the ethylene unit, accounting for 80% of total energy use, making it a critical breakthrough point for energy saving and consumption reduction. The plant implemented targeted measures and precise efforts, monitoring the operating conditions of the cracking furnace around the clock, strictly stabilizing the oxygen content in the furnace within the optimal range, precisely controlling the excess air ratio, and significantly reducing ineffective fuel gas losses while ensuring stable production conditions and full fuel combustion, effectively lowering the unit's fuel gas consumption rate. At the same time, the plant continuously optimized the cracking furnace's operating cycle and steadily improved its thermal efficiency. Cracking furnace No. 6 operated online for 112 days, exceeding the design value by 12 days; its thermal efficiency reached 96.5%, ranking at the industry-leading level.
In production control, the Second Ethylene Joint Workshop established a 24-hour dynamic production scheduling mechanism, closely monitoring core indicators such as daily unit output and product yield, breaking down output and yield targets to each shift, and routinely conducting indicator benchmarking, operating condition analysis, and deviation rectification, driving precise operation and meticulous control at each post; leveraging the DCS system to embed over 200 practical training items, deepening self-learning among all employees, and comprehensively strengthening practical operational capabilities at each post.
In terms of equipment management, the plant focused on three major compressor units, heat exchangers, and other high-energy-consuming core equipment, customizing special operation and maintenance management plans, and routinely conducting full-coverage inspections, real-time operating condition monitoring, and hazard identification and rectification. Reverse flushing operations were implemented for circulating water heat exchangers to address issues such as equipment scaling and inefficient operation, ensuring that all core equipment remains in optimal operating conditions, laying a solid foundation for the unit's high-load and stable operation.
The plant will continue to anchor the goal of energy saving and consumption reduction, continuously tap into the production and operation potential of the unit, routinely promote fine management and technological innovation, steadily improve the unit's energy efficiency and production capacity, and strive to build a safe, efficient, green, and low-carbon modern ethylene production unit.
