As of October 5, the coal-to-hydrogen unit of China Shenhua’s Coal to Liquid and Chemical Company had achieved 230 days of continuous operation without maintenance, setting a new operating record for the unit and placing it among the top performers in long-cycle operation of Shell gasifiers. This has laid a solid production foundation for stable output, energy supply security, quality improvement, and efficiency gains.
The Company empowers work safety through sci-tech innovation, focuses on the pain points and difficulties in unit operation, and advances special initiatives such as coal blending optimization and equipment technical upgrades. Its technical team assesses core indicators of raw coal, optimizes the coal type blending ratio, and stabilizes the coal quality parameters fed into the gasifier, thereby avoiding gasifier operating fluctuations and operational hazards at the source. Meanwhile, the Company has steadily advanced compressor upgrades and modifications, optimized equipment structure and operating conditions, and improved unit stability and reliability, thus reducing the risk of unplanned downtime.
In process control, the Company fully implements refined operational management, optimizes load controller ramp rate parameters, and achieves dynamic, precise matching of coal and oxygen feed rates. It has effectively overcome process challenges during load adjustment, such as momentary overheating of the furnace body, equipment wear, furnace temperature imbalance, and buildup at the slag tap. It regularly carries out dedicated efforts on long-cycle operation of burners and burner shrouds, improves the full-life-cycle operation and maintenance mechanism for wear-prone equipment, strictly controls process operating parameters, and ensures stable and efficient operation of the unit over the long term as routine and standard practice.
In energy conservation and consumption reduction, the Company has refined its energy consumption management system, tapped the unit’s energy-saving potential in all respects, lowered production energy consumption and unit product consumption, and continuously improved the quality and efficiency of production and operations. It has also deepened its lean production management model, tightened work safety responsibilities, optimized the process operation system, and consolidated the foundation of production management and control.
