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China Petrochemical News Network reported on May 14 that Shijian Maoming's high-end carbon decompression hydrogenation unit successfully introduced low and medium pressure nitrogen, marking the point where the device has entered the driving range.
It is understood that the introduction of nitrogen is to replace the air in the pipeline and equipment, to prevent the mixture of materials and air from reaching the explosive limit during the start-up process, and to prevent the system from corroding the pipeline equipment during operation.
As the calcining unit and needle coke unit of the device are undergoing sweeping construction, the safety personnel inspected the isolation blind plates of the two boundary pipe corridors one by one according to the blind plate diagram.
After the introduction of nitrogen into the pipeline, as replacement, pressure increase, and leak inspection are completed, the construction team carefully inspects every valve and pipeline to ensure that the equipment is in good condition, and the process is planned, coordinated, and implemented to achieve a start-up for high-end carbon projects To lay a solid foundation for feeding.
(Wen Jinpeng)
