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Luanan Coal-Based Clean Energy Company has successfully achieved full-load operation of two Fischer-Tropsch units. Author/Source: Date: 2019-03-04 Clicks: 17. Since Luanan was able to achieve full-load operation of all four gasification units simultaneously, as well as full-load operation of both production lines throughout their entire processes, the Coal-Based Clean Energy Company has aimed to ensure the ‘stable, reliable, continuous, efficient’ operation of its systems. By focusing on improving and optimizing the new ‘three threes’ management model, the company has completed the transition from the construction phase to the production phase. In the first two months of this year, the production of intermediate oils reached 176,000 tons; the gasifier operated at 93% of its maximum capacity, and both FTO units were running at full capacity. The company focuses closely on safe production, paying particular attention to ensuring the proper operation of the key components known as “two furnaces and two machines”. The two furnaces refer to the boiler and the gasifier, and the boiler is operating smoothly. Regarding the gasification furnace, monitoring of operational parameters has been strengthened, and a coal quality team has been established to analyze and monitor the coal quality on a daily basis, ensuring that the coal fed into the furnace meets the required standards ； At the daily coordination meetings, each department lists and summarizes the problems that arise during the operation of the gasification furnaces on that day, and formulates solutions on the spot to ensure their stable operation. In the first two months of this year, 4 furnaces were in operation simultaneously for 30 days, while 3 furnaces were in operation simultaneously for 20 days. In response to the severe ash accumulation in the SGC of the gasification furnace, the company promptly adjusted the coal ratio to ensure long-term operation of the furnace; G2 is now in operation for 92 days, exceeding the previous record of 68 days. The two types of machines refer to centrifuges and reciprocating machines. In the case of centrifuges, emphasis is placed on monitoring the steam piping network as well as the steam pressure and temperature, in order to maintain balance within the network and reduce fluctuations. Measures such as determining the anti-surge line through actual measurements and optimizing the 5.0 steam piping network are employed to ensure the stable operation of the centrifuges. Regarding reciprocating machines, proper planned maintenance should be carried out, and the standby units of these machines should be inspected regularly to ensure that they can be switched in at any time, thus maintaining the stable operation of the reciprocating machines. Regular seminars for large-scale units are held to discuss the problems that arise during their operation and to develop solutions. While ensuring the stable operation of the \"two furnaces and two machines,\" the company further optimized the catalyst replacement process and collected operational data to achieve the best possible performance of the catalysts ； Further optimize the slag wax filtration process to increase production. Next, Coal-Based Clean Energy Company will also carry out maintenance on gasifier G3 and the Low-Methane Series, in order to lay the foundation for high-load operation of the gasifiers in March ； Organize the commissioning of units that have not been operated yet, such as those for conversion and sulfur recovery, in order to increase hydrogen production ； Based on the operations in 2018 and the systemic issues that have emerged, a single-series shutdown for maintenance is planned for the end of April. After optimizing the system, efforts will be made to ensure its safe and stable operation at high load levels in 2019. Yao Zhiye, the deputy head of the company’s production department, told reporters: “In preparation for the maintenance work on a specific production line in April, the Coal-Based Clean Energy Company is carrying out preparations ahead of the major repair, developing a maintenance schedule and organizing the tasks strictly in accordance with that schedule.” At the same time, in regard to the blending of different types of coal, efforts will be accelerated to build coal storage and blending centers, with the goal of achieving triple-blend coal mixing this year. This will help further reduce production costs. Additionally, stricter control over operational and production metrics will be implemented to ensure the stable and optimal operation of the production system. ”