Problems and Countermeasures in the Oxygen System of GE Coal Water Slurry Gasification Plant
China Petroleum and Chemical Corporation Jiujiang Branch, Jiujiang 332004, China
| Abstract: | The safety of the high-pressure oxygen system in the operation of GE coal water slurry gasification device is crucial! High pressure and concentration pose significant operational risks to both oxygen pipelines and valves. This article focuses on several oxygen accidents and events (such as pipeline explosion, leakage, coal slurry pollution, etc.) that occurred after the coal hydrogen production unit was put into normal production and operation. The root causes were analyzed, and improvement and optimization measures were proposed to effectively ensure the effective and safe operation of the oxygen system. This article mainly reviews and analyzes typical cases that have occurred during the operation process over the years, and summarizes the emergency judgment, operation adjustment, shutdown handling, and accident and event response analysis and improvement measures for past accidents and event handling processes. The pipelines, valves, and related accessories of the oxygen system inherently pose certain potential hazards during production and operation. At the beginning of construction operations, the oxygen system comprehensively monitors pipeline welding and installation, degreasing and passivation, chemical cleaning, analysis and testing, etc. And the acceptance standards for the oxygen system are extremely strict and demanding: it requires the welding oxide to be completely peeled off; Purple light irradiation without blue spots; Camphor slices and sealing test are qualified. At the same time, airtightness and patrol inspection during operation are very important. Only by strictly controlling the safety of the oxygen system can we timely control the occurrence of anomalies and hidden dangers at the source. |
| Keywords: | Explosion; Pollution; Polysulfuric Acid; Corrosion; Tightness; Anti Channeling; Restriction Orifice Plate |
| DOI: | 10.57237/j.cse.2023.04.001 |
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Received: 24 August 2023
Accepted: 14 September 2023
Published Online: 9 October 2023
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